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  1. J

    Interest in a modern incarnation of the Farman F.455 Moustique?

    Twenty years ago I built something voluntarily ressembling an ultralight of the 19-twenties, but a single seater. Two cylinder DAF engine. Fuselage of entirely square or rectangular section from nose to tail, with no canopy. The low wing was a plank of constant airfoil with no dihedral nor...
  2. J

    Aeroplane you have to dress into !

    Too old !
  3. J

    Fauvel AV-36 and 361 project - comment page

    I logged four flights with a AV-36 in 1971 at Reims-Prunay (LFQA), one soaring and three shorter. Big psychological problem : the glider usually never flown, pilots preferring stay on the ground and not take-off with that. They accused the machine to have the glide ratio of a X-15 (no space...
  4. J

    Ejected on retirement

    Why they don't offer a Rafale flight to sixty-five but more airminded people like me ! As a French taxpayer I prefer the connection between the two seats failed ! The town Saint-Dizier is not unknown to me ; there was forty-two years ago a professionnal woodworker and homebuilder who prepared...
  5. J

    PILOT WEIGHTS TODAY?

    72.... kilogrammes.... since A.D. 1795.
  6. J

    L/D Ratio of an RV 3 ?

    Thank you !
  7. J

    Beyond the SR-71

    https://www.cia.gov/library/center-for-the-study-of-intelligence/utility-flight-hb-1-Mar-1959.pdf Section 6 page 7 At these altitudes, 1 kt IAS means about 4 kt TAS
  8. J

    Beyond the SR-71

    Aerowerkx, Yes, much above FL 600 : http://www.sr-71.org/blackbird/manual/appendix/a5-3.php
  9. J

    L/D Ratio of an RV 3 ?

    Have you a link ?
  10. J

    Low powered aircraft design

    Sorry, the formula is false. Please, read : ID = 66 (kg-f) x W² x 1/S² x 1/V² (or if you prefer : 66 kgf = 647 newtons)
  11. J

    Low powered aircraft design

    I met Jean-Claude Debreyer and his first 56 kg and 7 meter span Pélican at Romorantin airfield, central France, in 1986. Span and aspect ratio are low : L/D is not very high, but since weight is very low, minimum necessary power is low if you accept a modest cruising speed. If I well remember...
  12. J

    25 of the most beautiful planes ever built

    About 30 the 100, non-USA. 30 in excess !
  13. J

    Freedoms of flight in each country.

    No flight restriction nor special equipment (flightplan, parachute, radios...) in France outside controlled airspaces. Microlights, under 300 (single) / 450kg : no medical, no maintenance control. Experimentals, like mines : no design, calculations nor construction control. Experimental planes...
  14. J

    William Horton

    ...
  15. J

    William Horton

    An explanation of such a range with such an aspect ratio would be interesting.
  16. J

    Imaginary/fantasy flying machines - Post your pics here!

    Re: Most beautiful aircraft never built De Havilland Comet (the first) for piston-engined, Bear for turboprops and B-47 for jets.
  17. J

    Ugliest Aircraft Ever Build

    I log a bit over 100 hours with four different FF, two of them being prototypes I first flew. The formula was recognized dangerous soon after its birth in the mid thirties. Dangerous ? Yes, but only with too rear a center of mass : the plane dived out of control if flown at too high an airspeed...
  18. J

    Ugliest Aircraft Ever Build

    Look at mine (three different, but especially the green Flying Flea) : Le forum des pilotes privés • Afficher le sujet - encore un accident
  19. J

    Is this possible?

    The most conservative your homebuilt, the sooner you will fly.
  20. J

    What if we run outa oil in 2060 ?

    What if ? I will stop flying in 2059 and resume in 2061. I will be only 106 and 108.
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