Here is a list of all the postings David Davis has made in our forums. Click on a thread name to jump to the thread.
|Thread: Complete-a-Pac P-47 Thunderbolt|
Morning Rodney and welcome to the forum from me in La Belle France!
I'm assuming that you want to build the P47 with a view to flying it some time. As Kevin and Percy have said, the P47 is not a model for the novice builder or flyer but you could always learn to fly on something slower and more stable before moving on to the P47. This after all was what the real P47 pilots had to do.
So I would suggest the following:
Edited By David Davis on 24/05/2019 06:33:17
Edited By David Davis on 24/05/2019 06:34:06
|Thread: Glitches and crashes|
My own story also concerns Spektrum. In brief I bought a Spektrum DX6i when they first came out, which was no trouble other than a jammed rudder rate switch, a common fault. This was repaired free of charge and by return by Horizon Hobbies.
In 2015 having sold my house in England, having retired to rural France and being well-wedged, I bought a new DX9, keeping the DX6i as a slave for beginners. The DX9 continued to perform well until a couple of years ago when I switched on at the flield to find that although the screen lit up, the transmitter failed to function. As Horizon Hobbies had closed all of their Eurpoean workshops except the German one in Barsbuttel, I sent it there for repair. They were overwhelmed with work not having recruited sufficient technicians to deal with the increased work-load. After several weeks, when they did not answer my emails or phone calls, I speak German quite well incidentally, they sent it to HQ in the USA where it was repaired within two days and sent back.
Then one fine winter's day earlier in the year I was flying my SLEC Fun-Fly. I'll admit I was chucking it about a fair bit when the engine hesitated then cut in a knife-edge climb. I prepared to level the wings and stick the nose down but I had no response and the model crashed to destruction.
So, feeling that the crash may have been due to pilot error, I dragged out my Junior 60. I was searching for lift over a wood when the model went into an uncontrollable spiral dive. Seeing that I had crashed two models in consecutive flights I deduced that I had a problem with the transmitter. I sent it off to Logic RC where a new RF board was fitted. Since getting it back from Logic it has performed faultlessly and because I still had the DX6i, I could continue flying with minimal disturbance while the DX9 was away.
I am left to conclude that some Spektrum transmitters are not reliable. I never had such problems with Sanwa or Futaba FM gear in the pre 2.4 GHz days, and if my DX9 fails again, I will not be replacing it with another Spektrum transmitter.
Please don't tell anybody that I've crashed a Junior 60!
|Thread: Trouble contacting Laser engines|
Best wishes Jon. I hope things go well.
|Thread: What a sick world we live in|
The army doesn't want people like that!
|Thread: Suggestions for vintage model|
I like Vic Smeed's Ethereal Lady myself but most people prefer the Mamselle. I'd strengthen the wing a little for r/c.
|Thread: Coupe Des Barons.|
Work in progress on the second Baron.
Wing built as per Super 60 as mentioned above with just three spars as opposed to the seven spars on a standard Baron. The spars have been reinfoced with carbon fibre tows and I have used full depth plywood dihedral bracing. I also sheeted the lower wing between the leading edge and the first spar producing a D-section leading edge. The wing is very light but rigid.
The nose of the fuselage has been reduced by 2 cms to make allowance for the extra weight of the 52 four-stroke and I intend to fit the servos in the back.
P.S. There are restrictions on the power of electric motors Don, 825 Watts. Scroll down to "Reglement 2019" here for details. **LINK**
Certainly several of the electric-powered models went well last year, though the podium places went to pilots using the OS 35 AX, besides, I cannot work up much enthusiasm for electric motors Don, guess I'm just an old rocker!
|Thread: Tell us about your most embarrassing stories from the field...|
No I never get nervous flying model aeroplanes. If I can build them I can repair them. If I don't want to repair them they make excellent kindling for the wood burner.
You are probably right David, I'm starting to repeat myself. Old age probably accounts for the wonky wing too!
Story 1. I put my first r/c model, a St Leonard's Models "Gemini," into a tree while learning to fly. I did not realise that when flying towards you left is right and right is left! Years later I built a second Gemini converted to electric flight, just to prove to myself that I could fly it. I sold it on to a clubmate.
Story 2. I used to have a Detroit Custom Cruiser powered by an OS 40FS Surpass and guided by a Sanwa Conquest radio. On the Conquest transmitter the on-off switch is in the centre of the box. I was bringing the model into land and reached over with my thumb to pull the throttle trim back but over-reached and switched off the transmitter! The model went mad and ended up in the top of a tree again. This time I hired a tree surgeon to recover it. Cost me £20.
Story 3. This also concerns trees. The picture below, taken in 2009, shows your humble servant at Forton Aerodrome, the home of Shropshire Model Flying Club, with his Flair Hooligan powered by an Irvine 46. I was enjoying flying it when the model hit the upper branches of the trees in the background. It bounced off, executing the most perfect knife edge at the same time! I remember pushing the throttle wide open and the bold Irvine responded! I flew it back to a perfect landing trailing the foliage you can see in my hand from the undercarriage!
Finally did you hear the one about the modeller with sixty years building experience who made a simple trainer wing with 2cms more dihedral on one side than the other? No? I expect he's keeping quiet about that!
|Thread: please can you identify this plane|
Yes it's a Detroit Custom Cruiser produced by the much-missed Powerplanes International who also produced a nice Maule Super Rocket. I used to have a DCC. I had an OS 40 Surpass in mine. It was the second model I put into a tree!
|Thread: I know that this is a long shot but...|
Yes John. Very interested if you'd like to sell one!
I ran British motorcycles throughout my youth and early maturity so getting a Laser to run should be within my competence!
Edited By David Davis on 04/05/2019 07:31:10
My sporting upbringing will not allow me to compete with an oversized engine especially since I have volunteered to give a prize to the leading pilot in La Coupe who uses a fourstroke engine! It will take the form of a big box of balsa and maybe some glue!
In the unlikely event that the leading four-stroke pilot is me, I will give the prize to the second finisher!
|Thread: Spring is here. Who is flying?|
I took my Baron, "Boris," to the club's flying field yesterday. I had re-engined it with a Magnum 52FS and was practising low level flight, not my strongest suite, for a competition I will be entering in September. Only the French could organise a competition for three-channel trainers! The engine ran very well.
|Thread: I know that this is a long shot but...|
Having inspected my Laser 62 I see that it has "62" stamped into the mounting lugs. I thought of filing the number off and entering the competition with an over-sized engine.
By last night, having reached the stage where the fuselage, wing and tailplane had been built, I put them all together to admire my handywork as you do! I then went outside to bring in the washing. Having come back into the workshop I looked at the model again and thought, "That starboard wing looks a lot closer to the table than the port wing." I cleared the table of debris and found that after sixty years experience of building model aircraft, I'd built one wing with 2cms (just over 3/4" more dihedral than the other! Divine retribution?
PS. I'd thought of running a PAW Shaun but I'm a fourstroke man at heart.
I've got a Laser 62. Mmmm...
As many of you know I will be entering la Coupe Des Barons, (The Barons' Cup,) in September. **LINK** For this year's event the size of eligible four-stroke engines has been increased from a 40 to a 52. I have already re-engined the model I used last year, Boris, with a Magnum 52.
I plan to finish it in inter-war RAF colours and although I have an OS 52FS ready to install, I thought that as an Englishman flying a model in RAF colours it would be "ubercool," as young people say, if it could be powered by an English engine.
I'm not interested in running a two-stroke and I realise that the Laser 45 and Laser 50 are rather rare but if anyone has one in running condition which they are prepared to part with, I'd be interested.
|Thread: CAA registration consulation|
SUA? Sports Utility Aircraft?
Interestingly enough, here in France each model has a seperate number, and I thought that the weight limit was 800 grammes but old age, seventy-one, plays tricks with the memory! All of my models are well over 800 grammes anyway.
I assume that if you sell a model to another person you have to remove the number and he has to register it again.
Picture of my foamy electric trainer's number below.
Edited By David Davis on 29/04/2019 07:22:04
|Thread: U/C fixing|
That's been my experience too Mike T! I use black bolts for wing bolts and white bolts for the landing gear.
|Thread: Hi, I'm Robin|
Welcome Robin from a fellow builder! Though I have an electric model and appreciate its usability, I'm an i/c man through and through, fourstrokes for preference!
|Thread: Please answer the following two questions if you can.|
I think that Paul was using hyperbole, a deliberate exaggeration to express effect, e.g, "I could eat a horse between two mattresses!"
If he does have "around 580 models," I for one, would be interested in finding out what they all were and where he stores them!
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