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  1. flitzerpilot

    Slotted wing for propeller ?

    There was also a Pottier slotted-wing example if ai recall.
  2. flitzerpilot

    1/2 VW plans

    The prototype Z-1 flew well with a 1600cc VW for pilots weighing around 170 lbs. and the weight of the engine allowed a short nose with the pilot having a good cockpit view, ie. not seated forward between the wings as such, which would inhibit view. However the performance was transformed with...
  3. flitzerpilot

    Scattering Ashes?

    Standard cardboard tubes with 'quick release' end caps. I used these from the rear cockpit of a Jungmann. Just make sure (for propeller direction) that the helical flow is outwards and downwards. Hold them a far out into the slipstream as possible.
  4. flitzerpilot

    replica's other than p-51 p-40

    The GeeBee 7 started as a side view to determine pilot CG vs required a/c CG and wing CP to balance fore and aft with a relatively heavy motor. One could make some slight compromise visually with the actual cockpit location provided the nose was pushed forward to compensate, thereby appearing...
  5. flitzerpilot

    replica's other than p-51 p-40

    Of course I was referring to the projected Tigerfalk's performance - not that of the Walrus! :0)
  6. flitzerpilot

    replica's other than p-51 p-40

    I think that Walrus used Currie Wot wing panels and it also had a 90 hp. 5-cylinder Salmson 5A radial engine, one of perhaps only two ever imported into the UK. Oddly enough I had the other Salmson, a 5AQ, around which I had designed my first aerobatic biplane, the KFZ-1 Tigerfalk, a cross...
  7. flitzerpilot

    replica's other than p-51 p-40

    post: 613840, member: 815"] I guess that would be the Granville Brothers answer to the Boeing P26 🤣 As for scaling the GeeBee down, I find you get into a situation where the wing loading starts to go back up, and the aircraft start to become nasty little things like the WAR replicas...
  8. flitzerpilot

    replica's other than p-51 p-40

    Hi Scott, Agreed, the Jaktfalk is indeed one of my favourites, but would need to revert to four ailerons and requires an independent upper centre-section, which means I'd have to reject my existing 'A' frame cabane. I attach a preliminary view of a scaled J-6B showing the substitution of a...
  9. flitzerpilot

    replica's other than p-51 p-40

    I'm considering this.....
  10. flitzerpilot

    replica's other than p-51 p-40

    Some members here might recall that I had already designed a UT-1 some time ago. Initially this was intended for an in-line motor (Cirrus ll) as some examples were in-line powered, but a mocked-up radial around a flat-four was considered. It flew extremely well in X-Plane sim. at about 83%...
  11. flitzerpilot

    WWII replica plans available in 2021?

    PiperCruisin, Yes the Smithsonian example is original, reconverted to single-seat/aerial 'hook-on' parasite configuration for the Museum. The one suspended in the (Cradle of Flight?) museum is a replica and differs structurally from the original in several aspects. The basic Flitzer Z-21/21...
  12. flitzerpilot

    WWII replica plans available in 2021?

    Hi Scott and PiperCruisin, I know that the emphasis here has been on aluminium tube and riveted construction and that has been mooted for a Sperry M-1, but as the original was ash, spruce, plywood and fabric, that is the way I viewed the proposed replica. If another 3-cyilnder radial were to be...
  13. flitzerpilot

    WWII replica plans available in 2021?

    In my opinion, exact dimensioning, in terms of span-to-length ratio is not always critical. For example the Thunder Mustang wing is smaller than scale, but even in plan view passing overhead at 350 mph I would consider it acceptable and it still looks more like a P-51 than anything else - except...
  14. flitzerpilot

    Spitfire

    I read years ago that this was a Mk V replica. The asymmetrical oil and coolant radiators were used until the MK. lX appeared with the bigger Merlin. The MK. Vlll (retractable tailwheel and pointed rudder) appeared later than the lX, the latter being a modified Mk. V airframe. The Va had 8...
  15. flitzerpilot

    Spitfire

    Correct me if I'm wrong, but I believe this is a 5/8 scale all-wooden Spitfire V replica, built many-years ago possibly in BC. I think it was damaged in a forced landing but it is marvellous to see it restored. A most accurate early mark of Spitfire in replica form, ranking alongside Clive...
  16. flitzerpilot

    Falconar SAL Mustang

    I was astonished to se this Vimy fly directly over my home in S. Wales on its flight from Ireland in 2009. Prior to that in 1996, it was displayed at the PFA Rally and my first visit there was in Flitzer prototype, D692, where it was accorded a place of honour parked immediately in front of the...
  17. flitzerpilot

    Aerobatic Tandem Two-Seater

    My error, I got the decade wrong. :0( The Pilatus visit was in the 1980's.
  18. flitzerpilot

    Plugging distributor hole

    Hi Mike, One easy way of drilling or reaming and tapping at 90 degrees (normal) to any surface is to use a highly polished sheet of stainless steel, just big enough to fit over the job, with a hole drilled in the middle, slightly bigger than the drill you are using to bore the case hole...
  19. flitzerpilot

    Aerobatic Tandem Two-Seater

    Back in the late '70's think it was, I visited the Pilatus factory in order to gather topographical information to execute a commission for British Aerospace for a souvenir boardroom painting of Pilatus types. My great anticipation of flying in a V-12 Argus-powered vintage P-2 and taking...
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