Brushed/Brushless motors, speed controls, gear drives Discuss all aspects of brushless motors, brushed motors, speed controls (ESC's), gear drives and propellers in this forum.

help choosing motor

Old 03-18-2009, 06:52 PM
Junior Member
Thread Starter
Join Date: Nov 2008
Location: oxford, MA
Posts: 24
Likes: 0
Received 0 Likes on 0 Posts
Default help choosing motor

TURNIGY AerodriveXp
I am looking at this motor for a bridi aircruiser 25, est. wgt. 3 1/2 lbs any in put would be appreciated.
I beleave this would give me 75 watt's per lb

Model: TR35-42B
Input Voltage : 7.4V~14.8V (2~4S Li-po)
Kv : 1250 rpm/V within 10%
Current capacity : 45A/30s
Dimentions : 35mm X 42mm / 1.38in X 1.65in
Shaft diameter : 4mm / 0.16in
Weight : 132g / 4.66oz
Number of poles/magnets : 14
Recommended model weight : 600~2000g / 35~81oz
Power equivalent : .30 to .35 IC glow engine
Stator Dimentions: 28x20mm

Old 03-21-2009, 10:16 AM
Dr Kiwi
Senior Member
Join Date: Dec 2002
Location: Chattanooga, TN
Posts: 2,198
Likes: 0
Received 0 Likes on 0 Posts
Default RE: help choosing motor

If you reduce the optimistic rating by 25% or so... these are good motors. I think that if around 250W is enough for you, that motor will do very well - maybe even 30A and 300W - but the 45A burst rating is way too much! As for HC bragging that this motor is the equivalent of a .30-.35 IC motor (that's about 600-700W)... forget it.

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.