Thread: Trex 250 nitro
View Single Post
Old 12-29-2010, 09:17 PM   #16 (permalink)
poor_red_neck
Registered Users
 
Posts: 3,206
 
My HF Map location
Join Date: Dec 2007
Default

Quote:
Originally Posted by flyinfool View Post
My best guess is that that is a Cox TeeDee .020 engine.
Output of around 25,000 RPM.
I have seen a throttled version of that engine.
Cox did once upon a time make a free flight heli with a Peewee .020 for power, It had a 4 blade rotor of around 16 inch dia. The Peewee had a lot less power than the Teedee.

This might actually be feasible.
Other than the Picco Z I blame that heli for my addiction!

I got one for christmas back in 1998 at a "JR" in Burlington NC.

Had a tiny nitro engine. The blades didn't really create the lift. It is similiar to the "Twirly Bird" RC heli from the 70s. It had a small prop connected to it and the engine rotated with the larger rotors. The rotors were there to autorotate for landing. Thing was a BLAST! I was 13 at the time I think. I thought Id be smart and tape some pennies to the nose and put way too much nitro in it and BYE BYE she went!


__________________
Blade 130X - Stock
mCPx v1 Brushless Stretch (125mm) - WK10A - 11000kv Inrunner - 550 mah - Full CNC Upgrades
Retired Helis - Outrage 550, Trex 500, Logo 400, Others
poor_red_neck is offline