Here is a list of all the postings Gordon Whitehead 1 has made in our forums. Click on a thread name to jump to the thread.
|Thread: Precedent Stampe 1/4 Scale|
The skewers are anti-vibration rods which I assume are used to stop the wing bracing wires vibrating and rubbing against each other. Here's how I did it on my 27.5% scale Bucker Jungmeister. It's a near-scale version of what I saw on a full size Jungmeister.
The stainless steel flat wires are what Flair sold for their 1/4 scale Tiger Moth. The clamps are cut from the same wire and drilled for the minute screws sold by Mick Reeves, who also sells flat wire. The rod is birch dowel.
|Thread: Sukhoi SU-26|
My Acrostar flaperons' first stage flap deflection is 5 degrees, and full flaperon is 8 degrees. I haven't needed to program in any elevator or rudder mix to correct attitude or help turning.
Aileron deflection on the flight mode I use for all normal flying and landing is 10 degrees each way with no expo, so on full flap each aileron retains a bit of up-throw at full stick deflection.
I always set up new model control surfaces with 10 degree deflection each way, irrespective of kit recommendations if it's a kit, and progress from there. The Acrostar's ailerons and elevator are just right for me with these deflections, but it needs as much rudder as possible which works out at 30 degrees.
The model flick-rolls easily with these deflections on rudder-elevator alone with no aileron input needed. ie no need for extreme elevator throw to flick-roll.
On occasion I have forgotten to raise the flaperons for the following flight (brain-fade after a fast battery change) on both this model and its predecessor, the Sebart Katana, and wondered why the axial rolls were a bit slower than normal until the penny dropped! No unwanted tip-stalls have ever occurred.
I think the main point to remember on landing is to keep the nose down a bit to maintain airspeed against the lift-induced drag which could slow the model to stall speed, rounding out for landing only when the runway threshold has been passed. This is my SOP for all flapped landings anyway.
I'm waiting with bated breath to see what additional silencing you're going to fit Martyn, to keep our farmer's wife happy.
Ref landings, for more years than I care to remember I've always drooped strip ailerons as flaperons to help slow the beasties for landings. Some elevator coupling might be needed when the flaperons go down to counteract unwanted changes in attitude. My latest beasty using the setup is my Acrostar, and it was especially valuable this afternoon in the zero wind conditions. Just don't droop the ailerons more than their up-throw, and if necessary arrange to couple a modicum of rudder with aileron to help turning when the flap switch is operated. Coupled rudder isn't always needed, and is found by experiment - which needs a few successful landings of course
|Thread: Perry carbs.|
Here you go original Perry instructions.
If I recall, there's a fine slit in the spraybar which you ensure is clear by passing a piece of notepaper through it to remove any debris.
PS. I flew HB .20s and .25s with Perry carbs for years with no probs.
Edited By Gordon Whitehead 1 on 15/07/2019 20:25:57
Edited By Gordon Whitehead 1 on 15/07/2019 20:27:20
|Thread: Droning on at the F1...|
Whilst the 2.5 mile exclusion zone is probably a permanent feature for the heliport, it's not clear whether the cops and firemen and their detection apparatus will always be there too. So this was some sort of success at an event venue, but not necessarily repeatable on a day-to-day basis when there's no racing happening.
Eg, a couple of weeks ago my wife and I were enjoying an ice-cream sitting on the quay near the base of the 199 abbey steps at Whitby, when a a small drone flew from some point further along our side of the harbour and then proceeded to buzz back and forth along the quay maybe 25ft up. It would then buzz back to its starting point, seemingly land in the middle of some rocks, and then return a few minutes later. It paid our side of the outer harbour three visits before we left. I don't know if any official action ensued, but it was a noisy little thing that couldn't be missed by anyone nearby. I just wish that I'd had the wit to try videoing it on my mobile.
I realise that this report adds nothing to the foregoing, but such occurrences must be fairly regular across the country, and I must add that I found it very annoying.
|Thread: Sukhoi SU-26|
Cellulose is fuelproof against petrol and paraffin, though I can't say what modern synthetic oils do to cellulose once they've passed through the engine combustion chamber. I'd use epoxy resin (either finishing or laminating variety) in the engine bay anyway as it'll help to protect the glued joints against seepage. Epoxy did the job a treat in the engine bays of my petrol Jungmeister and Ultimate bipes.
Don't forget to tell us when you do the maiden flight.
|Thread: Fish tailing|
Beb answered the same query in this thread: Fishtailing - causes and cures
|Thread: CAA CAP 1789|
As a matter of interest Dick, was there a place to de-register your models - just in case a posse of gendarmes fancied a day out across the channel to check your docs
The "Flying Models in France " link on the finesseplus site looks useful if one plans to fly over there. Has anyone had a go at the online test?
The short videos are a neat summary of the regulations. The fines for transgression are huge even if the rule-breaking is inadvertent.
I wonder if we'll see similar guidance over here.
A friend texted me the other day with the proud announcement that while flying his thermal soarers at a recent aerotow event, he'd set a new personal best height in a thermal at 1925 feet.
PART A. UAS.OPEN.10 places height limits on sailplanes.
I don't fly sailplanes myself, and can see no possibility of a height exemption for the powered stuff I do fly. But I'm wondering how the thermalists amongst us will cope with UAS.OPEN.10.
All these new rules bring to mind how free and easy life used to be. As teenagers in the 1960's, a friend and I were flying our 10oz wt or so Vic Smeed Cherubs from a field near Keighley. Somehow my mate misjudged the size of the squirt of diesel fuel he put in the tank of his Mills .75 and it puttered away from the field towards the town at a goodly height, eventually gliding down onto the roof of an abandoned cotton mill. The holes in the mill's rotting upper floors and roof were something of a deterrent but with the full confidence of youth we retrieved the plane undamaged. We'd broken all the rules laid out in this CAP (and probably some law of trespass too).
|Thread: Commons Science and Technology Committee Enquiry on Drones|
The other weekend my wife and I were walking by the lake in beautiful Buxton Park and Pavilion Gardens and admiring the r/c boats in action there. Then there suddenly appeared a conning tower above the lake surface. Yep. An R/C submarine. We watched it dive back down and then proceed to tour the lake beneath the surface, frequently aiming towards and then passing beneath the other boats.
Until Martin's post I didn't know about underwater drones. Watch out Percy. They'll get your signature and money yet!
|Thread: Interesting reply from email to Richard Moriarty, CAA|
Just letting my mind wander .....
Are full size airports and small airfields registered and licensed, with a requirement to pay some sort of annual fee? If they are, could one way of getting rid of model flyers be by insisting that landowners of the fields we fly from pay a registration fee and an annual license fee to allow their land to be used for drone/model flying? The paperwork could be made suitably onerous for the landowner to decide it's not worth the effort for the relatively small remuneration we give them.
On another tack, if our £16.50 charge (and escalating) is really intended to stop us from flying, and if it works and ever more flyers drop out, then the takings will diminish. It seems to me that if a reduction in modellers is the intention, the reduction in takings will be planned for and accepted. In this scenario, refusing to pay the fee in order to reduce takings would be unlikely to change the authorities' minds one jot.
|Thread: Silver Solartex vs Silver Oracover|
I am planning on a build thread once I get started on the actual construction. At present I'm thinking mostly about how to build it light, and make it as quick and easy as possible to assemble and dismantle for transport. I'm flying my electrics on 5S lipos at present, but I think that I will have to make provision for a 6S pack in case it needs more oomph.
I hope that your flying went well this morning and the conditions were favourable.
Thank you very much for looking for your Solartex and your offer of a piece of it. In fact a clubmate saw this thread and offered me a full roll of it, so I'm going for that. I've drawn up the templates needed for covering the airframe and it'll need about 9m of the roll, so having it in one piece will minimise waste.
What I need to do now is to start the design properly. It's a plane I've wanted to do for many years and recently got hold of Alf Granger's Datafile on the plane which has decent drawings and that, along with an Ebay-sourced Matchbox plastic kit is what is now spurring me on.
Thanks again for your kind offer of help Alan, and following your comments I'm glad that I'm not having to use Oratex, with another reason being that as it's an inch narrower than Solartex it would need a longer length to fit everything in. The Siskin's upper wing is so huge.
Edited By Gordon Whitehead 1 on 05/06/2019 15:55:20
Edited By Gordon Whitehead 1 on 05/06/2019 15:55:42
I haven't seen a flying model of the Siskin either, though PE Norman flew one free flight, the plans being on Outerzone, as are his Gamecock plans. I made and flew PE's Gamecock on single channel rudder only back in the late 1960s. I still have to start designing my Siskin, but at present am drawing up templates for the covering fabric in CAD, positioning them on the computer screen on a 10m x 27in rectangle for minimum waste. The same exercise for a possible 1/5th Gamecock indicated a need for about 8m and the Siskin will need most of a 10m roll too. I'd save yours for possible further use, Alan! I drew covering templates for my Tiger Moth and ended up with 3m remaining from the 10m roll.
It is a nice subject, but the 14-cyl Jaguar radial will need some thought to keep it simple to make yet worth looking at. One neat feature is that the cabane struts are devoid of transverse cross-bracing, unlike most bipes, so the fuselage top beneath the wing centre section can form a big access hatch for the lipo, and the model won't need inverting or any other antics for battery changes. it also looks as if it can be made quite light as there's not a lot of structure.
I guess that the Oratex weave won't show at standoff scale distance, and certainly not in the air. Otherwise, a blow over with a light coat of silver dope might roughly equalise both colour and surface texture. I still have some balsaloc, but that probably wants re-activating with a drop of water!
The model I'm wondering about designing is a 1/5th scale Siskin IIIA, so the small area of sheeted surface could be litho-plated or done in doped tissue as appropriate.
Now that silver Solartex has gone and my stock of it is insufficient to completely cover my next model, it looks as if I'll have to use silver Oratex.
Has anyone used both? If so, can they tell me if there's a big difference in the actual colours and appearance, or are they a decent enough match so that, say, I could cover the undersides with my old Solartex, and use Oratex on the topsides? It's only for a sport-scale model anyway.
Apart from markings, lettering and an anti-glare panel, I don't want to paint the model if I can help it as it'll be electric powered so won't need fuel proofing. I have unpainted silver Solatex on the wings and tail of my 19-year-old 6ft span Tiger Moth and that's aged satisfactorily with no overpainting.
Please note that I'm not querying the relative merits of these materials for covering a models, just the closeness of the colours.
|Thread: Interesting reply from email to Richard Moriarty, CAA|
Well said John. Me too.
What makes up "all the hassle" that's about to be thrust upon us that will make it so unpalatable to fly a model plane?
I'm probably missing something here, so please set me right.
All I see is a fee of less than 20 quid, some form of simple test on the regulations that can be answered via a club crib-sheet, a flying test equating to the "A" test which I could probably have passed back in the late 1960's when I was enthusiastically flying a single-channel rudder-only Veron Mini Robot following the aerobatic advice for such machinery that had been available in model magazines years earlier.
I haven't forgotten the age limitation of 18 years either, as that can be sorted by cooperation with fellow club members. The child protection regulations require such cooperation even now.
Just to prove that I can, when pushed ,doom-say with the best of them, I can see that if the new law does turn model flying into an unacceptable leisure option for many existing flyers, costs of everything associated with it will rise for the remaining individuals. Reduced BMFA membership will require a rise in fees to cover costs; reduced club numbers will require members to fork out a bigger membership fee to cover the fixed, and probably rising charge for the field they fly on; the govt licence fee will inexorably rise due to falling numbers; more model shops will die and raw materials become harder to get.
However, on a brighter note I'm sure that plenty of hardy souls will persist with the hobby, and up to now I intend to be one of them. Looking back at when I started to become aware of model planes, there were only two kids in my town that took part, one of which was me, and through the participation of genuine enthusiasts nationwide the hobby was then recovering from what WW2 restrictions and austerity had done to it. We've had lots of good years and there'll be more to come, I'm sure.
Edited By Gordon Whitehead 1 on 30/05/2019 10:25:13
Well I have more than 62 years of my life invested in this hobby, and it'll take far more than a £16.50 (and more if it inflates) charge to stop me designing, building and flying sport-scale models of my favourite planes at whatever size I want to fly. The biggest restriction I face is that of noise, recently sorted by selling my jets, glows and petrols and returning to all-electric power.
As long as raw materials are available and my health continues favourably, I'll continue to spend my leisure hours as before. Ron Moulton is the guy to blame for my incurable obsession with his "Flying Scale Models" book which I had the good fortune to be given at age 12, and the govt ain't gonna undo all that Ron enthused me with.
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