Tales from the North - updated!
Shiver Me Timbers!! - 30/06/15
T.E. Lawrence was a remarkable and complex man. Very bright, he was thought to be insolent by his peers, probably because they were not as capable as he was and he probably told them so. His contribution to the First World War and the Arab Cause may never be fully or accurately assessed, but his portrayal in the film “Lawrence of Arabia” filled me with excitement. There was one scene when a lone arab on his camel rides towards Lawrence out of a heat haze and a mirage for one of the most unforgettable two minutes of cinema history.
I think it was last summer when I wrote of another dread killer coming out of the mist. We were at the Sunderland Air Show and The Vulcan was on its way. We knew something was about to happen as the skies had become silent and empty. Then, somewhere out in the haze over the North Sea, something was moving. Was this the Kraken waking? Something was emerging from the sea fret and mirage far out in the bay, silent as death, and it was coming our way. Slowly this apparition grew wings and a tall tail and I knew it was Avro Vulcan XH 558. Its approach was silent till very close, but it made the hair on my neck stand up, and then its presence was absolutely unmistakable, particularly on full throttle when half of the North East of England knew that particular Kraken had woken.
I had heard that XH 558 was about to pay us another visit. This is, I think, its last year as a flying Vulcan, and this mission was to fly round those bases where other static Vulcans sat on stately tarmac aprons and bid them a fond farewell. XH 558 lives at Doncaster Robin Hood International Airport. When I was a kid, this was RAF Finningley and was a top secret nuclear VEE Bomber base, and it was a few miles from our home. We would sometimes stand at the perimeter fence and watch these enormous planes fly off to do their Masters’ bidding. The chest-crushing roar of those four jets has never left me. And so far as I remember from school visits, Robin Hood never went near Finningley. He harassed the Sherrif of Nottingham some leagues further south, around Sherwood forest. Well, what’s a little marketing hype between friends?
The Big Bird was leaving Doncaster after an early lunch, flying up the coast to Durham and Sunderland, and then on to Carlisle. Our schedule was 1343hr overhead above our lovely Vulcan in the Sunderland Air and Transport museum. Once again, she appeared like a wraith out of grey skies flying over the Nissan car factory and banking north east for a pass over her sister. Then a full-throttle left bank and full circle and repass over sis, and she did it all over again before flying north over Newcastle and on to Carlisle. Being downstream of those four jets still amazes me. It is something like jumping into a cold lake, the breath just gets taken away from me, but I like it!! And there were several hundred others watching as well. If that was the last time I ever see a Vulcan fly, I shall be happy. But I hope she may turn up to the Sunderland Air Display later this summer. Keep an eye on the “Vulcan To The Skies” website for more information.
An interesting thing once happened to Sunderland’s Vulcan. During a heavy snowstorm so much snow fell on the huge wings that it overbalanced and its nose began to lift skywards! That caused some problems when the thaw started.
Vulcans were only used once in anger, when they went on an incredible run down to the Falkland Islands. So perhaps “Robin Hood” is a suitable name for the home of XH 558. And Sunderland is no stranger to strife and controversy, from pre-historic times through Roman and Viking raids to more recent times, often with its neighbour Newcastle. And Carlisle has a castle and controversy and was renowned for the Border Reivers.
But perhaps all these places which house Vulcans are also known for their connections with our Roman invaders. Vulcan was the Roman God of Fire, Volcanos, Metalwork and Forges. The Emperor Hadrian certainly had forges and metalworkers in the settlements along his Wall, and there would have been temples to Vulcan somewhere along the line. How fitting that XH 558 flew along the line of The Wall from Newcastle to Carlisle. Vulcan is also the Patron of the Sheffield Steel industry.
Big Brother - 23/04/15
Rain, wind, snow and hail! So I stayed indoors not venturing anywhere near the shed, as has been my practice for most of the last five months. Somewhere on the box was a re-run of The hunt for Red October. This is a good film, and worth the occasional re-watch. I saw something new. The KGB minder who had been sent to keep an eye on the highly respected and venerated Admiral Vilnius was a chap called Putin. How prophetic can the original book have been, written when our present Mr Vladimir was a mere lad. It set me thinking --- what sort of Big Brother do we have watching over us at our flying sites when we go off to do our Boys With Toys thing? Our Field Safety Officer has changed recently, from a wizard with investments to a chap half his size who is a wizard with physics. But I doubt the end result will be any different. We will still get benign but authoritative supervision without being too claustrophobic. And he will know that he has the BMFA and the CAA watching him, in a benign and authoritative way. I wonder if Mr Vladimir is watching them?
So, we are all sorting out our new models and checking that they are suitably airworthy – at least for their first flight, and waiting for a break in the weather so we can go off and have some fun. I guess most of us have already done some flying this year, but here the daffodils are still struggling against cold winds, and snow showers have scurried past from the Northumberland uplands to the North Sea and on to turn Bergen into a skiers paradise. I read recently that it only rains twice a year in Bergen, from April to September, and from October to March. We lived near there for 18 months, and that is close to the truth. The Bergen Emblem is an umbrella, and it is also a very pretty area to visit, if you take a lot of cash. I mentioned the first flight. One thing I have grown better at is to check the plane thoroughly after each flight, and before taking it out to fly the next time. First, it is a requirement for our insurance, and second, it keeps our friends safe. And we do like our friends, don’t we? Even our Flight Safety Officer, Vladimir? But what if we were told we had to stop flying because our plane had been condemned as unsafe? I wonder what sort of unfortunate accident might then befall our unfortunate Safety Officer? No, of course not!
We have an election soon, and lots of people are on the box making all sorts of seriously credible promises about how trustable they are, and how they would either guard prudently the nation’s assets till we could once again pay our way in the world; or spend and borrow all we can get our hands on, maximise on all our credit cards, create prosperity and dig ourselves even deeper out of the hole we are in. For us flyaholics we can position ourselves anywhere on the spectrum; sell up and worry ourselves silly; or spendspendspend. Someone else can pick up the pieces either way. How can it be our problem to worry about the economy national or personal when there is a summer of flying to enjoy? Well, I heard one brave politician earnestly NOT talking about the defence budget, and then a few hours later I heard some chilling facts from a journalist noting that we now have at our disposal a fraction of the number of aircraft we once had in the Iraq war. Apparently Germany can put up approximately half its complement of fighters as the other half are seemingly unserviceable. This same journalist finds that America’s B-52s are a little past their sell-by date, the youngest being 50 years old. Their F-16s average some 30 years of active service. Their maximum service life is probably on a need-to-know basis, as are most political jiggery-pokeries. And the replacement F-35, on which we hope to depend, is still a paper tiger. So, what is wrong with parading a few vintage aircraft to impress the public? Don’t we do this all the time at our shows? Aren’t there dedicated columns in our magazines highlighting models that are as frail and aged as their owners? But maybe the safety of the realm, or even of the free world isn’t so dependent on these models.
Well, maybe not. If we can be nice to each other maybe the world will still be there when we wake up tomorrow, maybe the weather will be fine, the wind blissful, and the Safety Officer might just be tied up with more important things to do. What was that about a new Higgs Boson?
Another day, and the swallows are flitting and chirruping around the house, so summer must be almost here. At last!
Thunder Tiger - 15/1/15
I watched a programme the other night about Tigers, the real sort, not our Taiwanese model types, and it raised a few questions in my mind. The basis of the programme was the use of very low frequency sound waves by animals (and many other agencies) to achieve their ends. Why is it that when a tiger jumps out of the jungle and roars at you, the end result, if you survive the first few minutes, is that you need clean pants. The answer, according to the researchers, is that low frequency sound engenders fear in people, and that usually makes their legs quake, and that usually stops them running away. A win for the tiger. Good research, perhaps, but I have never seen a deer jump so quickly as when a tiger roars at it from ten yards away. Maybe the researchers have a bit more homework to do.
Apparently elephants can communicate with other elephants miles away with low-frequency burblings transmitted through their feet. Sound travels through solids and liquids at different speeds and a lot further than through air. Whales can hear each other singing hundreds of miles away through the oceans. We humans don’t listen through our feet, or skin. Imagine how the noise pollution in our wonderful world feels to these creatures. Perhaps ships propellors thrashing round at subsonic speeds are the real reason whales get disorientated and beach themselves. Maybe that was what was behind “The Ipcress File”. It is possible that animals and birds react to earthquakes and volcano eruptions because they sense subsonic noises we can’t hear and aren’t yet aware of.
When did you last see a Vulcan at an airshow? Feel the chest-shuddering power as it flies past and stands on its tail on full power and leaving four plumes of kerosene smoke? Or any other powerful jet? They all generate a lot of noise, and that is why we go and watch and listen. And we don’t get turned to jelly or any other public health hazards. We absolutely love it! I must confess I don’t know what the spectrum of frequencies from a Vulcan looks like, but I am sure that a lot of the energy is low frequency and high energy. I grew up near a V-Bomber base and loved to hear them take off.
Another sound that thrills me is the sound of really deep organ pipes. The third movement of Saint Saens Organ Symphony starts with deep pedal organ notes which you feel rather than hear. In that instance I can imagine the organist caressing the pedal notes with tiptoes and setting the whole cathedral gently resonating before the music ratchets up towards Vulcan fever in the fourth movement and he stamps on the pedals and bashes the keys and manuals with full force which is what my music teacher said “ff” in music actually meant.
The researchers mentioned sound guns which could create low frequency sound waves which could disintegrate entire buildings at the press of a button. The patents ran out on that idea. And now we have interstellar lasers which really do work. They also mentioned testing animals in subsonic chambers to see if they disintegrated before checking out a few humans. They passed, which also appeared to limit the effectiveness of a sound gun. But I bet if they had done MRI or CT scans on these subjects they would have found quite a bit of unsuspected damage on small blood vessels or lung tissue. Fortunately for those researchers MRIs and CTs weren’t yet invented.
Another subsonic sound which really did turn peoples legs to jelly was the drone of a Doodlebug or buzzbomb, particularly when the sound stopped. The motor on these contraptions was a pulsejet which in basic terms is the simplest form of internal combustion engine there is. You can even make one out of a jam jar. If you ignite a fuel/air mixture it goes BANG! And its volume rapidly expands. Inside our Thunder Tiger engine the piston goes down and the propeller turns, and we go flying. If we have a tuned exhaust pipe on it the burning gas expands along the pipe to the atmosphere so fast that it creates a vacuum behind it which will suck the next bang along and improve the power of the engine. The simplest (valveless) form of pulsejet is a bit like a tuned exhaust pipe with a gismo to inject fuel and air to repeat the bangs and provide some jet propulsion, if not much throttle control. And they are not called bangs, they are called Deflagrations. It is all carefully explained in Wikipedia. Reed or daisy petal valves are used in more sophisticated designs to improve power and reduce reliability. I saw a couple of pulsejet models in action last summer at an airshow, once they had stopped working as flame-throwers and started pulsing correctly. They were whizzing round at high speed with a very distinctive loud and low throb till they ran out of fuel and landed silently.
The first pulsejet patent was issued in the 1860s with designs improving from there. The first jet engines were around when the Three Kings went to Bethlehem, using steam power. The jet engines, I mean, not steam-powered camels. Then the Chinese invented rockets, and various designs came and went, till Frank Whittle set us all on the right road from 1928. And the government? They told him to get lost. How did we guess that one? So he persisted and eventually we arrived at today, and for us flyaholics we can now play with lots of jet-powered models as well as pulsejets, if that is what turns us on.
Flying Tonight? - 7/11/14
I think we are good at complaining about anything we don’t like, and the weather just about tops the bill. The last summer has hit some records for sunniest, driest, wettest, coldest, and, yes, this is still good old United Britain. And we are still a nation of weather-watchers, still one nation although in some areas deeply divided. Here we have Hadrian’s Wall right across our country to remind us of times long ago when things were a trifle less peaceful. Edward Longshanks, the Hammer of the Scots. Brave Heart William Wallace. Robert the Bruce. They all fought and died over these pastures And not so far back as that were the Border Reivers, the Corsairs of these northern hills, who rode in on their sturdy horses and rounded up what they wanted and disappeared back into the valleys whence they came. Don’t get in their way if you wanted to stay the same shape as you were before they arrived, you might find an arm or a head missing. If you found yourself bereaved, the Reivers did it. It is the same word, just a different spelling. It is said that monks in a local Abbey heard the Reivers were in the area looking for them so they ran off and hid. Then they heard the Reivers had got lost in the fog and were headed way off north to Hadrian’s Wall, so they rushed back to the abbey and rang the bells and celebrated, only to find out that the noise attracted the Reivers back out of the fog just up the road where they were searching for the road home. An exchange of goods was arranged and the remaining Monks were somewhat impoverished for a few centuries. Strange how the principles of government have changed so little over centuries. There are still bonuses for us in such stories. There are several excellent sites and museums along the Wall where we can see what incredible achievements our ancestors got up to, and the Wall was built along a scarp slope with steep northerly cliffs which create updraughts for gliding.
I just can’t recall a decent summer. I can remember being rained off, blown off, fairly often on the days when I wanted to fly. I can remember being able to drive into our field without getting bogged down up to the axles in soft mud, and I hear we still can drive in. but the weather these last few days will surely change that. I can remember trying to cut grass ankle-deep after a couple of weeks growth. I can remember having some very frustrating times with planes. I can remember not achieving what I wanted. We all watched a new member struggle valiantly and vainly with a plane he wanted to use for aerial photography. The bungee launch, the crash, the cyano, the relaunch, the frustrated scowls. Finally he found another plane and was successful. Sound familiar? I think he has now mastered the black art of quadcopters and flying round lots of GPS waypoints taking lots of photos. Another member is at the cutting edge of commercial photography and live television and high-speed quadcopters. Things look promising, and you may be looking at his achievements soon. These things all filter down the club and into the hobby and benefit us all in the fullness of time.
Well, this year is almost dead and gone, and another is about to wake up and offer more hopes and dreams. I look up at the skies and see, sometimes, below the glowering clouds, birds wheeling freely through the air untrammelled by rain, wind, dead batteries, and soggy flying sites. We took a break recently to Ardwell Bay, a holiday haunt of my childhood. My first trip back in many years, we took a scenic route through the Reiver strongholds to Gretna (though I doubt they paid much attention to such rituals) and on to Sweetheart Abbey. So called because the Laird was killed in the crusades and his wife kept his heart to be buried with her in the abbey she built with his remaining fortune. It is an imposing ruin somewhat similar to but smaller than St Magnus Cathedral in Orkney. Those masters of aerial high jinks the rooks and jackdaws wheeled round and through window arches. At the southernmost tip of Scotland we saw a peregrine slicing through the air over cliffs on scimitar wings, as distinctive a silhouette as a spitfire. A flock of swans, 20 or so, flying low over the sea towards England, probably whoopers down from Iceland or Russia. One of the heaviest flying birds, how do they ever take off and keep flying for hours at a time. And all they eat is grass. And when will Li-Pos ever match their rechargability? A jay, north of Stranraer, resplendent in red, white, and azure wings and an awful cackle like a piston ring grinding itself to smithereens, and a squirrel running across the ground. Was it red? Was it grey? Gone too soon! Red Kites on the way home. I never tire of seeing these magnificent birds exulting over air currents we can never see, their tails shifting oh so slightly as they move left and right, long slim wings changing shape and incidence at their slightest whim. Such beautiful colours when seen in sunlight, and a great conservation story to pull them back from extinction. I have watched them do perfect touch-and-goes picking up offal at a feeding station, and then eating it on the wing. Hobby falcons catch insects in full flight and also eat them while flying. And we can achieve the odd mid-air collision!
And we left wing-warping behind a hundred years ago! Do any birds or insects do swing-wing technology? I know dragonflies can warp two sets of wings independently with a brain the size of a pinhead.
There were no whales to see off the coast, and no eagles. Not the right time or place for either, really, which leaves a nice excuse for a return visit another year.
Summertime - 20/8/14
Yes, this is Summertime. And we are still rejoicing under the after-effects of Hurricane Bertha. Three weeks of wet and windy, a dose of fertiliser on our patch which, with the gracious attentions of a flock of sheep wandering around adding another type of fertiliser, has made the grass grow at a wild rate. The Farmer has already taken one cut of hay, and is getting ready for the next. No-one has been up to the strip because it has been such high summer and the bog round the gate has stopped all but those cars shod with seven-league-wellington boots. And that includes me OUT!
So, with the drying wind now down to “Strong Breeze” I tried the mower. We have two in our shed. The nice big one has just been serviced. I found it has 2 flat tyres and one flat battery and the fuel gauge read “Empty”. So the small mower trundled across the pasture at its maximum height and still got stalled and bogged in the lush grass. An hour later I had taken the grass down to about 2”, just enough to trip up any plane that tried to take off or land, and the mower got jammed every few minutes.. By this time some friends had arrived and raked the cuttings off the patch so the mower could be set low and get the grass down to an acceptable height. Exhausted, we realised that the wind was again freshening and play was postponed to another time. There is another Low coming in from Iceland which will encourage us all to engage in shedly activities.
So much for our flying. But for some light relief the Sunderland Air Show was at its usual standard. It is free and lasts 3 days and gets all the best planes around. All, except, sadly, the great, the one and only, Avro Vulcan. I gather this is its last year flying and it was sad not to see it, and hear those great engines roar as she rolled away from the crowd. I grew up with the V-Bombers regularly flying over our house just 3 miles from RAF Finningley, now Robin Hood Airport. Robin Hood’s forest is, of course, miles from there but I am sure there is still a small element of robin the rich to give to other deserving individuals. Equity balancing and distribution is a posh description. Well, if I can have the occasional ARTF out of such redistributions I shall stay happy.
The two stars of the Show, as far as I was concerned, were the BBMF trio and the Eurofighter Typhoon. There is something about these planes that catches at my heartstrings. It may be the throb of the Merlins, 6 x 27 litres of megabucks whirling round at 2500 rpm. It may be the rush to get these planes built to fly into the War. And they were each world-leaders. It may be the rush to get those lads trained and thrown into the skies to do a job which was almost impossible. It may be that I am now much older than they ever were. Whatever, I love to see them, and hear them, and watch them manoeuvre around the skies. And there is another one from Canada come to join them, and the Vulcan will also be displaying. It is staggering that some 7 years separate the Lancaster from the Vulcan in their design.
Some 50 years separated the concept of the Spitfire from the Typhoon. The Spitfire developed out of the Schneider trophy winner and was a graceful ballerina with a deadly kick. The Typhoon developed out of a Committee and took years and years of satisfying opposing egos. One country insisted on taking the lead but the committee decided otherwise. So they walked out to make their own and sell it off to the rest of the world. And it looked uncannily like the Committee finished product Messerschmitt were at one side of the table, Hawkers were at the other. That must have been fun. The Spitfire had the tail at the back, the Typhoon has a tail at the front - a canard which is French for a duck. Truly a Committee design. We have all heard of “Spitfire Mitchell”. A chocolate noddy goes to anyone who can tell me anyone important on the design committee without looking it up in Wikipedia. Whatever the politics, the end result is a remarkable plane with a truly incredible noise attached. This is ear-splitting with the afterburners, and its agility is amazing. It can do a sort of prop-hang sitting on its afterburners, a bit like hatching a hard-boiled egg. But give me a Merlin any day!
Some comparisons. The Spitfire and Typhoon have the same wingspan, but look a bit different. The Typhoon is almost twice as long and five times heavier. It can fly twice as high as its little sister and its range was about twice as far. Its climb rate is 62,000 ft/min. Little sister did 2,600ft/min but didn’t have an afterburner. And it could fly about four times faster than a Spitfire. And its armament? A very Lot!!
Well, some Committees do make a little progress. And the guys who left the Committee? They sold some planes to one other country. C’est la vie! They also sold Exocets to Argentina, but that is a different story.
Gladiators! - 12/6/14
There was a programme my Kids were keen on called Gladiators. Big guys tried to beat up other big guys, and we at home on the sofa would cheer and shout things at them. But that was just the same in the film of that name, and that was based on what the Romans did a couple of millennia ago. And the Greeks, and the Assyrians, and the Egyptians before them. And probably Neanderthal Man had a book running on who was the strongest guy with a dinosaur thigh bone.
There was another Gladiator which excelled in a different field. This one had wings and flew, and spat venom out of its nose. Lead-filled venom! It is interesting that there were some similarities between this and other Gladiators, as all were fighters, all marked the ends of eras and set the stage for newer versions of the same game. It was all about Death and Glory. Fortunately, most of us reading this column have never had to fight for Death and Glory, apart from casting our franchise at occasional elections, but in 1934, just 80 years ago, this was a growing fear. The Gloster Aviation Company had built the Gauntlet, designed by Henry Folland, and were competing for another commission for an even faster fighter which could fly at the incredible speed of 250 mph. And if it could use the sophisticated new Rolls-Royce Goshawk engine they would be laughing all the way to the Bank. But the Goshawk didn’t squawk so they put some quicksilver in the front instead. The Bristol Mercury was a big round radial engine which wasn’t at all aerodynamic, but did deliver reliable grunt, and did get the new plane close to the target speed. Some three years later the new Fighter became operational.
Meanwhile, Gloster’s parent company, Hawker Aircraft, were preparing the most successful fighter of the era, the Hurricane. It seems incredible that these two designs, within the same company, just fifty miles apart, were going ahead at almost the same time, apparently in opposite directions. Sydney Camm also found the Goshawk’s squawk unpleasant and waited for the much better Merlin to hatch. He also did what we now graciously call “out of the box” thinking and produced a revolutionary design which didn’t need an extra wing, tucked its wheels inside its underpants when not needed, and packed just eight machine guns. It also flew almost twice as fast as its Gladiator cousin.
So, we have a brand new fighter aircraft going into service in a run-down Royal Air Force when its own cousin has rendered it obsolete. Sounds like a plot-line for “Yes, Minister”. But did it sit down and cry? Not Likely!! Clearly outflown and outgunned by the German machines it met as the War broke, it achieved considerable success in less well-known fields, and the defence of Malta made three famous as “Faith, Hope, and Charity”. Gloster Airplanes were sold to many other countries, and that had prompted a change of name from the “Gloucestershire Aircraft Company” to “Gloster Aircraft Company” as overseas customers had difficulties getting the name right. Is anyone surprised? How has our beloved language survived so long with all its intricasies of spilleng and pronounciashun? And is English still the number one language on this planet?
Their first success of the War was in Orkney where a Dornier flying boat was shot down. Hatston Airport is now an industrial estate where you can buy almost anything, and get almost anything made, if you know the right guy. I know, I lived there. It is where the ferry from Aberdeen will drop you if you visit. Gladiators were modified to fly off Carriers, with over half surviving till the end of the War. Their slower speed was an advantage here, and they were facing slower opposition. 36 were sold to China and did well until they met the Zeros. Then they were relegated to training duties. Their Ace pilot was Buffalo Wong.
There weren’t just three planes defending Malta. There were several, some being recycled as spares and repairs, but all did an excellent job in defending the island until Hurricanes finally arrived to bolster their defences. In fact, from the Arctic Circle in Norway and Finland to the Equator Gladiators worked tirelessly to the limit of their abilities, surviving the War, and continuing in a brave new world twenty years after they first flew.
So it was perhaps no surprise that when I saw a Gladiator kit at the Nats I got it. This had a grp fuz and cowl, and super plastic cabanes and wing struts which would anchor the wings in exactly the right place, I hoped. The servo tray anchored the cabanes, and also held the undercarriage in place. Neat! The wings and tail feathers were foam and balsa, so it looked an easy build and a fun plane to fly. The full instructions, I was assured, were all on the comprehensive plan. One modest sheet, printed on one side only. Maybe not so full! Well, at least it was not too expensive, and I really liked it, so it joined my Family for an eventful life.
The fuz was the easy bit. Nice shape, tail feathers cut out, glue the servo tray in, solder the u/c, mount the firewall, check the cowl. These bits did feature on the plan. The upper wing was in four bits, the lower had three, and I could find no information on how the join them. I wasn’t going to trust simple glue, so I pushed a piece of piano wire through the foam centre piece and followed that with an aluminium tube. You can be pretty accurate with this method, and it was fun to see the tube coming out where I wanted it. I found the required dihedral angle at last, concealed near the top left corner of the plan, so I could set the piano wire off burrowing through the outer wing sections of foam again. Cut the tube to length, and I had a centre spar. Gorrilla Glue expands as a foam, and sets rigid, so I dribbled some into the holes through the foam and coated the tube and the mating surfaces of the foam wing, and I have a robust wing with the correct dihedral. The cabanes and struts had pre-drilled sockets and plastic nuts and it was good to see them all mate up, though I wasn’t sure how robust these fittings were.
First flights are always fun, and this was no exception. “Balance point is Critical” the plan stated, and a fair lump of church roof was bolted to the engine mount. She raced off the strip, and appeared to stand on her tail, obviously tail heavy. She reminded me of a spring salmon resisting arrest by a wily poacher. I was just able to get her round the field for a quick landing in a series of leapfrogs and landed without further damage. Recheck the CofG, a bit more church roof, and another attempt. Same again, but this time I noticed that on full throttle she shot up, but on part throttle she behaved. I put wedges behind the engine mounts, with some 10* down thrust, and now she behaves better. Yes, the theory behind multiple wings and drag and down thrust is complex. The benefit of this kit was that the lower wing incidence was fixed by the fuz, and the upper wing incidence was fixed by the cabanes. I had checked the angles before flying, and they seemed fine. Well, I managed to rescue the flights, and have had some fun from it since, so all appears well. And if you want to try this model, there is an excellent Brian Taylor plan waiting for you.
That was one of the very few days we have had so far this year when flying was possible. What has gone so wrong with our weather? And can we do anything about it, other than complain? The Rain in Spain is mainly on the wane, so perhaps we should move there for a change? And why are we still using central heating when we are hours away from the Longest Day? And why does our electric blanket still have to work so hard to lull us to sleep? It is so good to be British!
Use this forum thread link or the one below if you have any feedback or messages for Martyn.
|The Flying Doctor|
feedback and commentary By Tim Mackey
by Tim Mackey
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