where's the beef?
09-04-2002, 08:36 PM
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where's the beef?
I tried to fly a Winnerrc sportsman ARF glider and it seemed to me
that there was not any Beef in the electric motor. factory specs state: [ws=72 in.] [wing area=536 sq in.] [Flying wt=3.3lbs]
[elec. motor=550] [prop=8 x 4 in. folding prop] [Battery=8.4 VDC]
Is it me or is this motor and prop adequate for the glider specs?
I am thinking of trying to get another elec. motor with more beef.
Any suggestions??
Thanks, Jim
that there was not any Beef in the electric motor. factory specs state: [ws=72 in.] [wing area=536 sq in.] [Flying wt=3.3lbs]
[elec. motor=550] [prop=8 x 4 in. folding prop] [Battery=8.4 VDC]
Is it me or is this motor and prop adequate for the glider specs?
I am thinking of trying to get another elec. motor with more beef.
Any suggestions??
Thanks, Jim
09-06-2002, 10:00 AM
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MORE beef!
Hi, Jim!
I have both brushless and brushed motors in my planes. For this type of glider I STRONGLY suggest using an R/C car motor, such as the 19 turn Trinity Chameleon Pro 2, which is available from Tower for $35. This motor is good for 165-170 watts.
Attach an MPJ 8063 planetary gearbox ( 3.8:1 ratio ) which bolts right on ( you have to glue the pinion gear on with the supplied adhesive ) available from either David Bradford at Aircraft World, or Hobby Lobby for about $24, use a speed control like the ( once again available ) Electrifly 65 amp from the U.K., or any controller good for at least 35-40 amps. One of my buddies is using a Great Planes 30 amp controller on a 6 cell setup, and getting away with it! A 50 amp would probably be a better choice.Run your choice of 6 to 8 cells of from CP1700 and up capacity, and a prop somewhere between 12.5X7.5 and 14X9.5, depending on the number of cells, and you'll LOVE it!
I have this as an 8 cell setup in my FVK Impulse 2 LMR, which is a 98" span sheeted foam wing, 6 servo ship, no doubt MUCH heavier than your plane, and am DELIGHTED with the performance!
Of course, as with any brushed setup. be prepared for a bit more maintenance. You'll need to pull the motor and clean the brush dust ( use spray brake cleaner from any discount auto parts store), lube the ball bearings, and clean / turn the commutator once in a while. A new set of brushes will probably be in order every 30-40 flights at a cost of less than $5.
I have a complete drive train set up just like this I am thinking about putting into a Hangar 9 Aspire EP that had the original ( WIMPY!) setup yanked out, and is just hanging in my shop.
More questions? That's why we're here!
Bob Cowgill, AKA bmwbob, Moderator.
Cocoa, Florida
E-mail:[email protected]
I have both brushless and brushed motors in my planes. For this type of glider I STRONGLY suggest using an R/C car motor, such as the 19 turn Trinity Chameleon Pro 2, which is available from Tower for $35. This motor is good for 165-170 watts.
Attach an MPJ 8063 planetary gearbox ( 3.8:1 ratio ) which bolts right on ( you have to glue the pinion gear on with the supplied adhesive ) available from either David Bradford at Aircraft World, or Hobby Lobby for about $24, use a speed control like the ( once again available ) Electrifly 65 amp from the U.K., or any controller good for at least 35-40 amps. One of my buddies is using a Great Planes 30 amp controller on a 6 cell setup, and getting away with it! A 50 amp would probably be a better choice.Run your choice of 6 to 8 cells of from CP1700 and up capacity, and a prop somewhere between 12.5X7.5 and 14X9.5, depending on the number of cells, and you'll LOVE it!
I have this as an 8 cell setup in my FVK Impulse 2 LMR, which is a 98" span sheeted foam wing, 6 servo ship, no doubt MUCH heavier than your plane, and am DELIGHTED with the performance!
Of course, as with any brushed setup. be prepared for a bit more maintenance. You'll need to pull the motor and clean the brush dust ( use spray brake cleaner from any discount auto parts store), lube the ball bearings, and clean / turn the commutator once in a while. A new set of brushes will probably be in order every 30-40 flights at a cost of less than $5.
I have a complete drive train set up just like this I am thinking about putting into a Hangar 9 Aspire EP that had the original ( WIMPY!) setup yanked out, and is just hanging in my shop.
More questions? That's why we're here!
Bob Cowgill, AKA bmwbob, Moderator.
Cocoa, Florida
E-mail:[email protected]
09-18-2002, 02:25 PM
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where's the beef?
Hi! Bob,
Well I am away from home right now and got on the PC at my daughter's house. We have been gone fer about 2 weeks. Anyways thanks for the Info. on how to increase the power in a elec. glider. when I get back home I will start on all your suggetions. If I run into some problems in getting it togeather, you may hear me asking you for [How to] info. So thanks again,
Jim
Well I am away from home right now and got on the PC at my daughter's house. We have been gone fer about 2 weeks. Anyways thanks for the Info. on how to increase the power in a elec. glider. when I get back home I will start on all your suggetions. If I run into some problems in getting it togeather, you may hear me asking you for [How to] info. So thanks again,
Jim
09-18-2002, 02:37 PM
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where's the beef?
It's my pleasure, Jim!
Helping each other have more fun from our hobby is why we're here.
Bob Cowgill
Cocoa, Florida
E-mail@[email protected]
Helping each other have more fun from our hobby is why we're here.
Bob Cowgill
Cocoa, Florida
E-mail@[email protected]
