Model Forum / Radio Controlled / Helicopters / February 2006

I have a question that might tickle those grey cells!  Do you know (or are
you) a good maths person?
A helicopter rotor blade, with radius r is doing n rpm.
Calculating the speed at the tip is easy - done that. It's high!

    I tried eBay but nobody even saw the auction. The controller is in good
condition. I have the original box. I also got a software update a while
back which fixed some bugs. I don't see myself doing rc and I just as well
could make a buck. I paid $250 originaly so I'd like a ...

Does anyone have any plans for building a training stand?
I would really like to put something together to learn with.
BTW it has to be lite enough for an electric heli.
Thanks,

related to F/w really, but here goes...I'm fitting a H9 P51, paired
ailerons, two flap servos, two elevator servos, throttle, rudder, gear. Can
this be done on an 8ch Rx? I have used the "ailevator" mix for the two
elevator servos but this now seems to preclude using a spare ...

Just taken delivery of my "new" FF9 T9CP and have two questions...
1.  Whats the difference between a T9CP and CHP I wonder?
2.  The gyro menu confuses me - I think that in "std", i.e. standard mode, I
set the normal and HH modes (so, UP at normal, 30% ish and DOWN at HH 90%

I'm rebuilding the blade grips on a ZXX with stock pieces. The instruction
drawings, working from the inner portion out, show a ball bearing, a thrust
collar, a thrust race, the thrust bearing, another thrust race, and finally,
another ball bearing. My question centers around the ...

Hey people.
I have a mini helicopter that takes those little 8.4v 700mah packs.
The Heli, controller, packs and charger came as a set, though I do not
trust the battery charger as it is a 2 hour one and I fear that

i dont know if im doing anaything wrong but if i am i need to know how
to fix it because the realflight controller doesnt work and i went out
and bought a usb hooke up for that thing that costs 20 bucks thats crap
so i need to know how to make this thing work it realley makes me mad

For Sale: Raptor V2 Sport Kit
I have a new, fully assembled Raptor V2 Radio Controlled helicopter with a
Leo .37 ABC engine. The helicopter has never been flown, and the engine has
not been started. There are no radio, servos or gyro, but the helicopter is

I'd like to get into this hobby but before buying my first, I would
like to get an informative "beginners" book to learn the basics. Can
anyone suggest something useful preferably that I can get in Australia.
Thanks Steve

I have a brand new Trex -SE
I've run about 5 charges through it.
Today I was practicing  nose in hover and the at an altitude of about 2 ft the
helicopter went wild. After I got it shut down I noticed that the swash plate inner

I`m all new to rc choppers and my question is:
Whats the diffrence between a GWS dragonfly (electric 4ch) chopper and a
Walkera dragonfly (electric 4ch) chopper?
I`m reading the specs on these 2 choppers and can`t find any big diffrences

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