This argument will not wash. With the suggested arrangement the rubber band is only a flexible coupling between the propeller and motive power which is an electric motor with a battery.
John
From: Indoor_Construction_at_yahoogroups.com [mailto:Indoor_Construction_at_yahoogroups.com] On Behalf Of Don Slusarczyk
Sent: 04 May 2014 16:12
To: Indoor_Construction_at_yahoogroups.com
Subject: Re: [Indoor_Construction] Re: Analysis of the new F1D rules
Tapio,
The F1D rules say:
"Model aircraft which can only be flown in an enclosed space and which are powered by
extensible motors and in which lift is generated by aerodynamic forces acting on surfaces
remaining fixed in flight, except for changes of camber or incidence. "
So a rubber band must power the propeller. We all assume that the extensible motor can only be wound before flight, in essence the device I am proposing would rewind the rubber motor while in flight. So the model is still powered by an extensible motor.
Don S
On 5/4/2014 8:43 AM, Tapio Linkosalo wrote:
> How about a lipo that powers a small gear box that rewinds the rubber
> motor in flight.
What do you need the rubber motor for then? More efficient to put the
gear box run the prop directly. Or put the rubber weight for the lipo.
-Tapio-
--
Don Slusarczyk
www.DonsRC.com <http://www.DonsRC.com>
Home of the Wicked EDF Motors!
Received on Sun May 04 2014 - 16:37:48 CEST