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  1. J

    Mono Wheel in Q200/ Viking Dragonfly style aircraft.....

    The Mono Wheel really has to be re tractable for prop clearance reasons, perhaps the wingtip wheels should remain with a fixed setup so they only stay at a height where they are just touching Tarmac when parked, Wheel up prop in horizontal position etc, More thinking reqd. The D/Fly just looks...
  2. J

    Mono Wheel in Q200/ Viking Dragonfly style aircraft.....

    Looking at a nose wheel & tire of a Fletcher FU24, Size 800 x 4... just over 8" wide straight rib baloon style, 4" dia rim X appprox 4"-5" wide, , approx 2" dia Possibly run it without spring/suspension. Should be able to get nosewheel weight off W&B sheets off the guys in hangar... Still...
  3. J

    Mono Wheel in Q200/ Viking Dragonfly style aircraft.....

    Interested in your thoughts, guess it would require outrigger style stabilising wands like the Europa.
  4. J

    DH-88 Comet Re-Imagined? 300kts cruise W/ Modern Aerodynamics?

    Tripped over this old thread, I dont know the current status of the aircraft at Croydon Aviation, New Zealand, or who owns it etc, They do complete rebuilds etc, so if you have $$$ to spare there might be spots/shares to be owned. Enquire at your own risk and again its a while since I visited...
  5. J

    replica's other than p-51 p-40

    Among my many 'I wants' is the P39 Aircobra. Falco F8l Wing, BMW V12, reduction drive , Never settled on a donor fuselage though.
  6. J

    Flat-Plane Crankshaft Engines...a discussion!

    One thought, most if not all the production steel forged Small Block Chev crank forgings start off as single plane shape before at a point in the forging process they twist the still red hot forging 1/4 of a turn to place the two ends in the right position for cross plane use.
  7. J

    Flat-Plane Crankshaft Engines...a discussion!

    The Ford Flatplane crank shown above has an awful lot of counterweight compared to its crossplane cousin. One engine I always thought might appeal to the aviation community was/is the Chrysler/Dodge all alloy V8 that had twin plugs per cyl, guess it has enough other faults that put it in the...
  8. J

    Falconar SAL Mustang

    The Vickers Vimy, so big you might have missed it?. WW1 Bomber Replica has made three ? trans oceanic flights, initial testing & first with two M73 BMW's, second with Big Block Chev's and last with Orenda BBC. BMW.s were removed due to Factory realising legal implications of what was essentially...
  9. J

    Falconar SAL Mustang

    Guess I'm not most folks then! Biggest problem I have is living long enough, that is why its become a technical exercise to get the engine & redrive done & running rather than build the plane first. Cost of the engine was a no brainer.
  10. J

    Falconar SAL Mustang

    That is a question that always comes up, It may not be an issue with a ~ 200 mph breeze past the stacks to create an extractor effect, even with car race headers on the LS on the dyno the exh exits into still air, so how much might you be losing there compared to them being fitted on the car in...
  11. J

    Falconar SAL Mustang

    Reading this with some interest, have followed the test flying of 'Bowers Pony' on you tube and the videos of the 'T51-Sugar'. While neither the LS or BMW engines are likely to match the actual sound of a Merlin due to cyl size etc I wonder how the sensation of BMW V12 compares to the LS. Can...
  12. J

    GP-5 or Polen Special similar designs.

    The Falco Plans are on the net, Narrow the fuselage & up the powerplant, has retractable gear & do some serious math on the wing and structural stuff.
  13. J

    Mountain plane

    With regard to cam failures, over the last decade or two with deletion of ZDDP etc from oils had much of the racecar industry scratching their heads. One simple fix has been to cut a small groove in the lifter bores to squirt a jet of oil at the cam lobe just before it comes into contact with...
  14. J

    Falconar SAL Mustang

    Space Cadet, Hi, have you investigated the JURKA? P51 that was being built in Wanaka by 'gilles-kupfer', it was being advertised in the NZ Sport Flying magazine several years ago...~2010?. He was originally from Switzerland and moved to NZ to build his 190 warbird replicas. Not sure if he is...
  15. J

    Superior buys back all XP-382 and XP-400 engines

    Part of the reason for angled holes thru crankpins is likely to make them self cleaning by centrifugal force, reducing any sludge/debris buildup which can alter balance of the crankshaft over time. One thing that struck me of photos is the crack/break is all around & outboard of the fillet...
  16. J

    LS376/480 - Major power loss.

    While I remember those articles vaguely, were they single pipe per cyl or in pairs or 4 to 1 collector. I do remember doing some exh testing on a 2L Pinto powered Hydroplane with both 4/1 headers and 4 individual stacks (both with anti reversion steps @ port face). Engine ran nicer on the 4/1...
    • jac
    • Post #14
    • Forum: Chevy
  17. J

    LS376/480 - Major power loss.

    The end shape of each exh stub and its position in relation to the airflow & boundary layer will have a huge effect on scavenging at speed, something you wont be able to re-create on the dyno, guess its a case of test fly and use some onboard data collection a bit like some race car series as a...
    • jac
    • Post #12
    • Forum: Chevy
  18. J

    TBO or RCM & why?

    A thin plastic slinger between the copper slip ring & bearing if room would keep grease off slip rings. It would need to be larger than slip ring dia.
  19. J

    Trailing-link landing gear

    The Falco is only complex if you look at the detail of the dwgs, but real simple in principle especially if you make it fixed gear. replace the oleo with something like the zenith rubber pad setup & you could self fabricate quite easy.
  20. J

    PSRU for Range Rover engine??

    The Drawing posted in reply #13 above is NOT that of the Rover V8. The Rover is a deep skirt block with crank C/L approx. 2.5" above pan block interface and two further bell housing attach points in that area.
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