HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Sep 08, 2003, 11:50 PM
Registered User
jason_ices's Avatar
MALAYSIA
Joined Aug 2003
237 Posts
How fast 400motor can go?????

did any body know how fast cheap 400 can motor can go..... what kind of plane and setup their using??? Want to try a high speed plane with low $$$
jason_ices is offline Find More Posts by jason_ices
Reply With Quote
Sign up now
to remove ads between posts
Old Sep 09, 2003, 12:11 AM
BANNED!!!
soholingo's Avatar
Laurel, MD
Joined May 2001
12,684 Posts
pylon racer w/ Rocket speed 400 motor.
soholingo is offline Find More Posts by soholingo
Reply With Quote
Old Sep 09, 2003, 01:28 AM
Registered User
davidfee's Avatar
San Diego, CA, USA
Joined Mar 2001
3,068 Posts
The fastest S400 model I have seen or flown is a Sobakin Stinger 400. It's a fully molded composite ARF, so it's not cheap. If you want low $$$, build yourself a small model like it. You can see a 3-view drawing at http://www.aerodesign.de/ .

have fun,
David
davidfee is offline Find More Posts by davidfee
Reply With Quote
Old Sep 09, 2003, 03:00 AM
Registered User
WimH's Avatar
Belgium, Flemish Region, Oosterzele
Joined Dec 2001
5,425 Posts
Quote:
Originally posted by davidfee
The fastest S400 model I have seen or flown is a Sobakin Stinger 400.
This is the model that wins most, if not all, pylon 400 races in Belgium. Fastest times around 80s for 10 laps. As the course is 100+100+20= 220m long, the "minimal" average speed thus calculates to ((220m*10)*3600)/(80*1000) or 99KpH. Straight line speed must therefore be way over 100Kph. This is with 7 cells and a 6V SP400 type motor. With 8 cells you can get it a bit faster still...
WimH is online now Find More Posts by WimH
Reply With Quote
Old Sep 09, 2003, 06:47 PM
Registered User
jason_ices's Avatar
MALAYSIA
Joined Aug 2003
237 Posts
what kind of motor is that 6V SP400? any one have pic of Sobakin Stinger 400?
jason_ices is offline Find More Posts by jason_ices
Reply With Quote
Old Sep 09, 2003, 07:26 PM
Size Matters!
RocketRob's Avatar
San Francisco Bay Area
Joined Dec 2002
2,654 Posts
If you do a search on Stinger you should find photos or I think there are several in this thread

http://www.rcgroups.com/forums/showt...hreadid=133165
RocketRob is offline Find More Posts by RocketRob
Reply With Quote
Old Sep 09, 2003, 07:58 PM
Convert!
rroback's Avatar
Los Angeles, CA (UCLA)
Joined Nov 2002
3,889 Posts
for a little cheaper you can go with a switchblade from cavasos. I used that as my first fast plane, I had it running a 6v speed 400 ( went through 4 differernt ones) spinning a 5x5 or a 4.7 x4 or 4.7 x 4.7 on 8 or 9 cells. 9 cells was a little faster but wasn't really worth it. the fibers in the glass wing were splitting becuase of the forces i put it through. 3/4 throttle climbs and then full throttle steep dives and quick/lows pullouts worked it hard.

rhett
rroback is offline Find More Posts by rroback
Reply With Quote
Old Sep 10, 2003, 11:39 PM
Registered User
jason_ices's Avatar
MALAYSIA
Joined Aug 2003
237 Posts
last night do some modification to my gws 400 motor, i retimed it and turn CCW. Amps reading was 12 amp with 4.6 X 4.5 prop (modify), 8 GP 1500mah nimh cells and 30A speed controller. what do u guy think it's good or bad ? If bad how do i improve the peformance?
jason_ices is offline Find More Posts by jason_ices
Reply With Quote
Old Sep 10, 2003, 11:53 PM
Registered User
Peter Khor's Avatar
Mostly in Norman, OK
Joined May 2002
1,868 Posts
You can get a couple more rpm off a GWS 400 by removing the flux ring, which is standard iirc.
Peter Khor is offline Find More Posts by Peter Khor
Reply With Quote
Old Sep 11, 2003, 01:08 AM
Registered User
United States, MI, Commerce Charter Township
Joined Dec 2000
1,299 Posts
The fastest setup I have ever flown or heard of was the 4.8V motor on 6 cells and a 4.5-4.1 Well over 100mph in any 400 racer you have. Prior to that, the Rocket was the hot ticket. Neither of these last very long. You'll get 2 flights out of the 4.8V motor and 3-4 good flights out of a Rocket. All this is assuming you do a race prep on the motors, but doesn't include comm drops.

Dave
Dave Campbell is offline Find More Posts by Dave Campbell
Reply With Quote
Old Sep 11, 2003, 01:41 AM
Registered User
jason_ices's Avatar
MALAYSIA
Joined Aug 2003
237 Posts
what is flux ring?? where does it local?
jason_ices is offline Find More Posts by jason_ices
Reply With Quote
Old Sep 11, 2003, 01:56 AM
Registered User
Peter Khor's Avatar
Mostly in Norman, OK
Joined May 2002
1,868 Posts
If this is the Speed 400 motor you got from GWS ... notice around the outside of the motor case there is a metal band? it's just clipped on and can be taken out easy. What flux rings are for, do a search on rcgroups ... basically lower amp draw of the motor, and rpm at the same time, increase efficiency.
Peter Khor is offline Find More Posts by Peter Khor
Reply With Quote
Old Sep 11, 2003, 10:27 AM
Registered User
United States, MI, Commerce Charter Township
Joined Dec 2000
1,299 Posts
In my travels to make the 'bestest' Sp400 pylon motor, I found the flux ring to have as much effect on the motors as two empty boxes of Kleenex. I haven't seen any amp draw reduction on the bench, something I was hoping would make the motors last longer.

Dave
Dave Campbell is offline Find More Posts by Dave Campbell
Reply With Quote
Old Sep 11, 2003, 02:15 PM
luc
I plant balsa sticks too
luc's Avatar
France
Joined Feb 2000
3,585 Posts
2 flights with a 4.8V...gasp!!!
even as cheap as it is, going brushless will soon be the choice.
Personally, due to the cheap brushless and esc around, I only have megas. What a great motor! last setup is over 350W..
luc is offline Find More Posts by luc
Reply With Quote
Old Sep 11, 2003, 02:40 PM
Registered User
The Other Dave's Avatar
Colorado Front Range, USA, EARTH, Sol system, Milkyway Galaxy
Joined Nov 2001
2,356 Posts
w/ a flux ring the motor will produce less RPM if everything else
stays the same (prop, cells, gearing).

But it will be more efficient and draw less current.
The Other Dave is offline Find More Posts by The Other Dave
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion How Fast Did You Go? msnyder Micro Ready-to-Fly 17 Aug 14, 2007 03:46 PM
Discussion How Fast Will This Go? andrewwells13 Flying Wings 3 May 23, 2007 01:46 PM
how fast do they go? ifli2 On-road Cars 1 Aug 16, 2005 12:18 AM
how fast will this go NoS Electric Power Cars 4 Apr 10, 2005 12:23 AM
How fast do they go ? any way ? American Flyer Parkflyers 0 Jul 09, 2004 09:05 PM