HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Aug 05, 2001, 01:19 AM
Registered User
Foxtrot's Avatar
Kodiak AK USA
Joined Jun 2000
609 Posts
Tell us your experiences with the Permax 400BB

I just noticed this motor yesterday on Multiplex's site. Looks like a cantidate fro my CSD Twister. Any one have any experience with them? Props? Cell count? Amps? Replacable brushes? Any info would be much apreciated? Just looking for a cheap way(read: non brushless) way to soup up my Twister.

Foxtrot
Foxtrot is offline Find More Posts by Foxtrot
Reply With Quote
Sign up now
to remove ads between posts
Old Aug 05, 2001, 01:51 AM
Registered User
Salem, Oregon
Joined Jul 2000
111 Posts
I bought one for my Mini Ellipse about a month ago. I think that it the same motor as the Graupner 480 Race, or something like that.

I ran it direct on both 7cell 600AE and 8 Cell 600AE with a 6x3 prop. I don't have any exact numbers. But it was too hot to touch when done with a "no thermal" flight. If i remember it should have been close to 18 amps from what motocalc said.

Just a couple days ago I put a 4.5:1 gearbox on it. Started with an 11x8 then went to a 12x10. Climbs pretty good, but not real fast with that 12X10. Motor doesn't get as hot either.


I don't think I would buy it again if I had the choice, as I'm starting to think about which brushless motor could I fit into this little plane and it's only been a month.

Good luck


sprocket is offline Find More Posts by sprocket
Reply With Quote
Old Aug 05, 2001, 02:03 AM
Registered User
San Diego, CA, USA
Joined Aug 2000
525 Posts
It's a good, inexpensive step-up from the std. speed 400 crowd, but you do have to use better cells than the 600ae's...

I replaced a geared speed 400 with one, running 7X800ar on a 6X4 prop. Pulls about 19-20 static. (The plane, BTW, is a Wattage Impress). It flys extremely well, and will loop continuously from level flight.

This motor would be good for pylon or other high-speed direct drive applications.

(I haven't run one geared)

THe brushes are replaceable, but they're not standard car size. (i.e. you'd have to sand down a set)

I like the motor.... This one was run WAY too hot by a friend of mine... He blackened the comm. real bad. I took it apart, cleaned up the comm, and have been running it ever since.
Spam is offline Find More Posts by Spam
Reply With Quote
Old Aug 08, 2001, 12:09 AM
Balsa Kamikaze
Jensst's Avatar
Germany, NRW
Joined Feb 2001
536 Posts
I'm late, but...

I had the Permax400BB in my "Knife", was fast like hell on a 4.7x4.7 CAM Speed and 8 cells 500A. Drew 18A static, the motor didn't get very hot during the (scary) 2 minutes flights - but the cells cooked.

If you get it, be sure to break it in properly! I didn't do that and messed up the commutator pretty bad after 5 flights or so.

_Jens
Jensst is offline Find More Posts by Jensst
Reply With Quote
Old Aug 08, 2001, 12:29 AM
Registered User
Foxtrot's Avatar
Kodiak AK USA
Joined Jun 2000
609 Posts
Looks like I'll be getting this motor for my Twister. MotoCalc is predicting 92 mph prop speed on 8 cells.

Thanks for your inputs on the motor.

Foxtrot
Foxtrot is offline Find More Posts by Foxtrot
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Tell us your R/C Trauma's !! electriceye Electric Plane Talk 5 Jun 28, 2007 10:33 PM
Discussion Tell us your favorite Trex motor and why. Crash549 Mini Helis 50 Sep 08, 2006 02:59 PM
Tell us your AP setups rikhye Aerial Photography 16 Apr 16, 2004 10:43 PM
Twinjet with permax 400BB. Good Idea? dom Foamies (Kits) 1 Nov 13, 2001 10:20 AM
Your experiences with F.glass and MS Blades for ECO JIMJAM Electric Heli Talk 2 Apr 24, 2001 10:11 PM