Bonjour NEEL Jean Philippe,
bientt,
======= le 29/11/2005, 21:50:58 vous criviez: =======
>
>Salut Michel
> Il s'agit tout simplement d'appliquer des solutions tres connues dans le
> monde
du vol voile. Tu peux voir ca sur les planeurs plastiques modernes.
>On pose un scotch cot charniere et un joint a levre de l'autre cot pour
>empecher
une circulation parasite entre l'intrados en pression et l'extra dos en
depression.
Cette circulation est generatrice de traine.On peut appliquer ca au aileron
au tab et la derive.
> Par contre le faire sur les volets me semble etre une mauvaise ide, car cela
supprimerait l'effet de soufflage du a la fente des volets de l'europa . Ce
soufflage
ameliore beaucoup l'efficacit des volets.
> En ce qui me concerne je vole depuis le debut avec un scotch cot charniere.
> Ne me demande pas combien de Kt ca m'a rapport!
> Vole bien
> JP
>Michel Auvray <mau11@free.fr> a crit :
>
>Hello John;
>I am inerested by your information concerning laminar flow.
>What is your idea to reduce drag?
>
>bientt,
>Michel Auvray builder 145, 270 hours fly with my Europa (monowheel)
>
>======= le 29/11/2005, 09:38:52 vous criviez: =======
>
>>
>>In a message dated 11/29/2005 2:58:14 AM Eastern Standard Time,
>>europa-list-digest@matronics.com writes:
>>
>>
>>> So get rid of much of that drag; it need be only relative to
>>> a big, even faired bump on the fuselage bottom, and stowed
>>> outriggers but in a place where some wing lift suffers.
>>> Like laminar flow wheel pants, if one has a way to trust the
>>> fairing mfr's sales literature. With laminer flow, fairing
>>> drag goes down something like 60%.
>>>
>>> I've seen a dozen or so flying Europas now and I've been very surprised that
>>> no one I've seen is installing flap gap seals and positive seals on the
>>> ailerons, rudder and trim tabs. Stopping the pressure equalization between
the
>>> upper and lower surfaces of the wings and stab, plus the left and right side
of
>>> the rudder has been shown to significantly improve sailplane performance.
>>> It's puzzling to me that more Europaphiles aren't using these techniques.
>>>
>>> On another note, my Sensenich hollow carbon prop arrived yesterday. All I
>>> can say is "WOW". The quality is excellent! I'll let everybody know what it
>>> weighs shortly.
>>>
>>> Regards,
>>>
>>> John Lawton
>>> Dunlap, TN
>>> A-245 (Installing the prop today....)
>>
>>
>
>= = = = = = = = = ========= = = = = = = = = =
>Michel Auvray
>mau11@free.fr
>29/11/2005
>
>
>
>---------------------------------
> Tlchargez le ici !
>
>
= = = = = = = = = ========= = = = = = = = = =
Michel Auvray
mau11@free.fr
30/11/2005
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