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www.Deproniada.com • Vezi subiect - F.O.C.D.

F.O.C.D.

Reguli forum
Aici veti posta poze si filmulete cu modelele create.

F.O.C.D.

Mesajde farmfly » 08 Apr 2011, 04:43

V-a prezint F.O.C.D.- ul meu - Fabricat Original Cu Depron ;) . In functie de cum te uiti la el poate fi o aripa zburatoare cu semiaripile decalate, sau un tandem asimetric, etc....Ideea : compensarea momentului de rasturnare al unei aripi prin alta metoda decat prin profil reflex.
Fiecare semiaripa va avea doua suprafete de comanda (depron) : la baza profundor, la varf eleron. Profundoarele vor lucra in sensuri opuse si teoretic ar trebui sa dea un moment de roll neglijabil sau macar compensabil usor din eleroane.





farmfly
 
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Membru din: 20 Mar 2010, 01:43

Re: F.O.C.D.

Mesajde Mihai Gabriel » 08 Apr 2011, 08:03

pe vremuri...se numeau "coase" si se zburau la captive, viteza.
Mihai Gabriel
 
Mesaje: 22
Membru din: 01 Mar 2011, 23:23

Re: F.O.C.D.

Mesajde farmfly » 08 Apr 2011, 19:05

farmfly
 
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Membru din: 20 Mar 2010, 01:43

Re: F.O.C.D.

Mesajde Mihai Gabriel » 08 Apr 2011, 19:43

repet..erau captive de viteza. Aripa (sau ma rog semiaripa) era cam de 80 cm inspre pilotcu o coarda ce 4-5 cm, iar ampenajl de aprozimativ 20 cm in partea opusa. Profundoruil cam de 10 cmx1 cm, elice monopala (cu contragreutate)....asta nu m-am prins de ce. Nu aveau tren de aterizare, se decola de pe carucior. fusealjul, cam 30 cm... Modelele astrea erau capabile de viteze peste 150 km/h...ceea ce este destul de mult pentru un captiv...motoarele...Os-Max-urile erau doar la nationale...si vorbesc de anii 80-85. Rar mai vedeai cate un Rossi, iar la moda erau alea chinezesti de 2,5 cmc, sau Radugile de 7.
Mihai Gabriel
 
Mesaje: 22
Membru din: 01 Mar 2011, 23:23

Re: F.O.C.D.

Mesajde padre » 08 Apr 2011, 23:34

http://en.wikipedia.org/wiki/File:Faispeed_2004wc.jpg
Totusi aerodinamica unui captiv este alta decat cea a unui model RC. Cu toate astea eu sper sa zboare. Au mai zburat si alte aeronave asimetrice.
http://www.nurflugel.com/Nurflugel/n_o_d/weird_01.htm
http://cmeunier.chez-alice.fr/Asymm_addition.htm
http://www.aviastar.org/air/usa/rutan_boomerang.php
padre
 
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Membru din: 20 Mar 2010, 01:38

Re: F.O.C.D.

Mesajde Mihai Gabriel » 09 Apr 2011, 07:15

Sa traiesti .....la Wiki nici nu m-am gandit.
PS....mi-ai starnit amintirile cu pista de captive de la Gherla!!!!!!!!....(poate mai sunt cititori care o stiu...daca o mai exista....cai eu am zburat pe ea prin '85-87...)...
Spor la construit...
Mihai Gabriel
 
Mesaje: 22
Membru din: 01 Mar 2011, 23:23

Re: F.O.C.D.

Mesajde farmfly » 09 Apr 2011, 07:39

Informatii super interesante !
Multumesc Mihai G. si Padre pentru incursiunea in lumea captivelor !
Intr-un fel m-am linistit: chiar daca vizual exista o mare asemanare, aerodinamica este mult diferita !Sant departe de orice acuzatie de copy-paste ! :D
Dar... a revenit cu putere intrebarea : oare va zbura ?!?!? Si asta e de bine :lol:
Sa ne vedem sanatosi la Rapa !

-- 09 Apr 2011, 12:07 --

Noi santem gata ! Asteptam si vremea prielnica pentru teste de zbor!






-- 11 Apr 2011, 00:01 --

Si...a zburat !! :D :D
Unul dintre cele mai dificile modele de setat ! Dar a avut, si are, ceva interesant care m-a facut sa nu il abandonez dupa primele "n" trante imediat dupa lansare !
Centrul Aerodinamic este mai in fata decat l-ar da un calcul sumar (adica la mijlocul distantei dintre cele doua aripi) !
Cele doua "profundoare" lucreaza bine, fara sa creeze nevoia de a compensa din eleroane !
La modelul asta am pozitionat semiaripile la 3 grade incidenta ( fata +3grade fata de spate). E de incercat si pozitionare paralela!
Cu mult hot glue,ceva carbon si o piatra in bot, a zburat pana la urma !
Placerea acestui zbor intra cu brio in categoria unde Visa si Mastercard sant codase ! :D
Multumesc Melsoft ! Multumesc Deproniada!(Nu cred ca as fi gasit prea curand impulsul pentru a mai construi cate ceva!)
http://www.youtube.com/watch?v=MvPxkUwRoOo
farmfly
 
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Membru din: 20 Mar 2010, 01:43

Re: F.O.C.D.

Mesajde Mihai Gabriel » 11 Apr 2011, 22:23

Felicitarile mele, de incepator....
Iata ca mi-a fost dat sa vad, dupa multi ani, inca o "coasa" zburand...
Mihai Gabriel
 
Mesaje: 22
Membru din: 01 Mar 2011, 23:23

Re: F.O.C.D.

Mesajde mihaip » 12 Apr 2011, 19:14

BRAVO FarmFly !

Eu inca mai cred ca acest concurs a fost conceput pentru astfel de proiecte,
pentru care sa te intrebi nu daca zboara 30 de secunde, ci: ZBOARA ???
Felicitari
mihaip
 
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Membru din: 20 Mar 2010, 01:44

Re: F.O.C.D.

Mesajde padre » 13 Apr 2011, 14:39

Felicitari pentru realizare! Sincer, ma indoiam ca va zbura.
padre
 
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Membru din: 20 Mar 2010, 01:38

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