David P Williams
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Everything posted by David P Williams
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New EDF Mini Jets- Jet Provost & Folland Gnat
David P Williams replied to Tony Nijhuis's topic in Tony Nijhuis plan builders
I have three of these 50mm edf units ordered from Banggood as 'FMS 50mm 3S', in two seperate orders. I didn't inspect them closely. The two that came together are marked FMS and have 5400kv motors, and one of them is fitted in my mostly built Provost and untried as yet apart from checking that it actually runs. The one that came on its own is actually a Powerfun unit with a 4900 kv motor. Hmmmmm -
Thanks chaps
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I keep thinking about making a vac form box. Would something like this be suitable or are there not enough holes? would it be good as a starting point for drilling more holes? Edited By David P Williams on 11/06/2020 10:38:44
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Two Wings and a Round Engine
David P Williams replied to David P Williams's topic in Building from Traditional Kits and Plans
A lot of headscratching and not much progress. Sorted out a (hopefully) strong enough but lightweight support structure for the fuel tank that should accommodate the largest tank I may need, and smaller ones with padding. I think it will need modifying to site the onboard glow unit without having to lengthen the leads too much. I didn't like the spindly look of the piano wire tailwheel leg, so I 3D printed some covers. They may not survive any flexing of the leg, but we'll see. I didn't like the suggestion of an arrangement of soldered on washers and steel plates which would have had to be soldered in situ. With my poor soldering skills I would have either had poor joints or solder running into the tube, or both. So I fired up the lathe and turned up some collets and a combined collet/steering arm. Not true scale, but looks a bit better than plain wire I think. I also turned up a domed spinner for the engine. I've now assembled everything I need to test run the engine, just need to knock up a mount/test stand. Next I need to sort out servo, battery and receiver location and mounting before I restrict access by adding the top fuselage stringers. -
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Yes, a prominent piece in The Times also plus a leading article, triggered by the publication of a book 'Defiant: The Untold Story of the Battle of Britain' by Robert Verkaik.
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SLEC Chipmunk build blog
David P Williams replied to Tim Flyer's topic in Build Blogs and Kit Reviews
Well done Tim, they're lovely to fly aren't they? Mine is pretty porky with all the extra scale detail but still flies beautifuly with its Laser 150. -
I'm really tempted - I built your Spitfire which was great, and I love P51s, but I'm generally into slightly larger stuff now so I think I'll wait to see what your idea for the Laser boys turns out to be.
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Two Wings and a Round Engine
David P Williams replied to David P Williams's topic in Building from Traditional Kits and Plans
Thanks Jon - someone else on my club has a Flair Stearman, and he's been pretty helpful with tank info. He made the front instrument panel removeable along with the cockpit floor and can slide the tank in and out that way, so that's my current plan. Wouldn't work with a Tiger Moth, but this thing's AMERICAN sized. BTW his hasn't flown. It has a Saito 180 and he reckons it's not enough power to make him want to try to heave it off the ground. He has other engines to choose from so he's fitting either a 360V or an ASP 400 radial converted to petrol. -
Two Wings and a Round Engine
David P Williams replied to David P Williams's topic in Building from Traditional Kits and Plans
Progress - the balsa for fuselage longerons is supplied in 36" or 915mm lengths, but they need to be around 48" or 1200mm long, so lots of scarfe joint splicing required. The lower half of the fuselage is built upside down on the plan on the main longerons, starting with the engine/undercarriage/cabane/lower wing mounting structure. followed by the remaining former lower sections and seventeen longerons. Everything fitted perfectly, resulting in this Next step is to remove from the board, turn over, fit the former top halves and complete the upper longerons. -
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Another bargain rescued from the chicken coop or fished out of the brook - although he does say it needs some restoration! Be quick - it's a one day listing...
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Martin - I have a stack of books given to me by an old work colleague of my father's, back in the 60s. He had been RAF in the war, the books date from 40/41 or so. I love looking back through them. Amongst them are these:-
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I never took a bike test when I was young as I thought I would kill myself - I was mad enough in a car at 18. My first wife bought me motorbike lessons for my 35th birthday, so I did the wobbling round a car park, ride around the block with emergency stop test, then went out the next day and bought a 750 Kawasaki, cos you could then. That was fun, but after about 6 months I'd had enough near misses with other road users not seeing me that I sold it and built a 4 wheeled motorbike instead - a Westfield (Lotus/Caterham 7 clone). Just as much fun, a fair bit safer, but still useless for transporting models!
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Two Wings and a Round Engine
David P Williams replied to David P Williams's topic in Building from Traditional Kits and Plans
Yes I'm not keen either. I might be saved by the spacious American cockpit opening which might give me enough room to manouvre the tank in and out. Otherwise it's all a birds nest of formers and stringers covered with thin ply simulating aluminium panels around the front. Tricky to provide an access panel without compromising the structure. I think I'll have to give up on the idea of full depth cockpits anyway as they are really the only access into the fuselage so I think false floors with servos, glow unit, batteries etc under them will be the way to go. I will replicate the 'baggage' hatch behind the rear cockpit but probably only to hide switches in.
