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cavendish55
Fri 20-10-2006, 21:32

Re: TwinJet da Multiplex 280 kms/Hora
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Boas.

Bem tem um motor eléctrico capaz de conseguir ultrapassar esta turbina. 900watts, peso do modelo: o triplo do TwinJet velocidade 285kms/hora. 

Nâo percebi.
Um motor capaz de 900 Watts arranja-se fácilmente. Donde vêm os 285 Kmh é que não atinjo.

Em http://www.rcuniverse.com/forum/m_4620190/tm.htm está a história de alguém que pôs mais de 1500 Watts numa Stryker para atingir:
"I am expecting 125+ MPH, but if it doesn't radar above 120 MPH, I will prop up some more." 
Mesmo que fossem Milhas Náuticas seriam 231,500 Kmh.
Se fossem terrestres seriam 201,125 Kmh.

Não percebi bem para quê, todo aquele material acabou torrado, como seria de esperar ao pôr o triplo da potência máxima no motor.
Mais valia que fosse uma turbina, ao menos tirava o gozo do som. :lol: 

Fiquem bem.

Boas Chispas
Bom os 285kms/hora, não fui eu que inventei :? , foi o fabricante que o afirma no seu site
ora veja: (desculpe o copy/paste)

This is probably our most famous and fastest Jet Model ! Originally powered by our 2Wind SpiderFan running on max 16 NiCd battery cells, this now Lipoly powered 5s 3200/3700mAh version lost 1/4 of its total weight ! Low weight makes landing much easier and at 10% of maximum throttle with the nose up by 20 degree it can literally be "parked in air" above your airfield, once given full-throttle the model will accelerate by the 650-900 Watts  like an arrow and climb vertical to 900 feet or more..This JePe scale Jet has proven its air superiority for many years, and because now even 8s Lipoly will fit into this model it will stay on the cutting edge for a while longer!



http://www.jepe.org/f-16/F16-009.jpg
http://www.jepe.org/f-16/F%20kit.JPG

FAN+Battery: Complete ducting is designed to fit the JePe 2W or 3W Spiderfans. Battery: 2 packs of 2s (Kokam 3200) can be placed in both wingroots and the 5th(6 or 7th) cell can be placed on top of the fiberglass airintake. The 2W at only 5s Lipoly cells gives the best power/weight ratio but current is 45 Amps(765 Watts), the 3W on 6s draws only about 32 Amps(650 watts) and so has the longest flight time. The choice is yours Horizontal in-flight measured "cruising" airspeed of both these drive sets is 190-210 km/h and top airspeed is 250-260 km/h.

7s on the 3W SpiderFan makes a current of about 37 Amps (900 Watts), horizontal "cruising" speed 220-235 km/h and top airspeed of 285 km/h.

http://www.jepe.org/f-16/kokam%203200%20inside.jpg
6s of  Kokam 3200 placed inside ( 2s packs and  inline)

Fan

http://www.jepe.org/f-16/3W%20spider.JPG

Quando abri este tópico, achei piada uma turbina custar uma pequena fortuna para o TwinJet, daí o post.
Por 1/3 do preço temos melhor (incluido o modelo) 8) 

Vôos rasos :wink:
