HobbyKing Forums - need to replace a 3548 motor for ASW28 glider

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laotzu

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Topic: need to replace a 3548 motor for ASW28 glider
Posted: 13/Jun/2012 at 11:35pm

The HK specs says Prop size: 11.1V/13x8 18.5V/12x6

12x6 on 5s.

I figure 12x8 should be fine for 4s.

very misleading spec on HK.

RCER88

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Posted: 13/Jun/2012 at 10:23pm

A 12x8 prop is way to much on 4s for a 3548. You are drawing way to many amps that is why it melted. My 3548's running on 4s I spin a 10x5 and that puts it high in the amp range of its rating. Mine are several years old now and still going strong. Because I do not max them out.

You need to go to a lower KV motor. Then you can swing a larger prop on 4s without torching the motor.

Good luck.

laotzu

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Posted: 13/Jun/2012 at 3:12pm

Bought this motor (NTM Prop Drive 35-48 Series 900KV / 815W http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16231) for the ASW28 Glider.

Setup: 3300MAH 4S, Plush 60A, Folding Prop 12x8, flying weight 2.1kg

After many flights, the motor finally burned and melted (in the air).

Am looking at a replacement motor (Turnigy D3548/4 1100KV Brushless Outrunner Motor http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18233)

The specs looks suitable for my setup.

My question is the 1100kv motor will match the 12x8 prop using 4S lipo?

Edited by laotzu - 13/Jun/2012 at 3:14pm

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laotzu Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (MY) USERID: 747176 Newbie Joined: 12/Jan/2011 Online Status: Offline Posts: 14	Quote Reply Topic: need to replace a 3548 motor for ASW28 glider Posted: 13/Jun/2012 at 11:35pm
	The HK specs says Prop size: 11.1V/13x8 18.5V/12x6 12x6 on 5s. I figure 12x8 should be fine for 4s. very misleading spec on HK.

RCER88 Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (US) USERID: 88368 Hobbyking Addict Joined: 28/May/2009 Online Status: Offline Posts: 423	Quote Reply Posted: 13/Jun/2012 at 10:23pm
	A 12x8 prop is way to much on 4s for a 3548. You are drawing way to many amps that is why it melted. My 3548's running on 4s I spin a 10x5 and that puts it high in the amp range of its rating. Mine are several years old now and still going strong. Because I do not max them out. You need to go to a lower KV motor. Then you can swing a larger prop on 4s without torching the motor. Good luck.

laotzu Members Profile Send Private Message Find Members Posts Add to Buddy List Platinum (MY) USERID: 747176 Newbie Joined: 12/Jan/2011 Online Status: Offline Posts: 14	Quote Reply Posted: 13/Jun/2012 at 3:12pm
	Bought this motor (NTM Prop Drive 35-48 Series 900KV / 815W http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=16231) for the ASW28 Glider. Setup: 3300MAH 4S, Plush 60A, Folding Prop 12x8, flying weight 2.1kg After many flights, the motor finally burned and melted (in the air). Am looking at a replacement motor (Turnigy D3548/4 1100KV Brushless Outrunner Motor http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=18233) The specs looks suitable for my setup. My question is the 1100kv motor will match the 12x8 prop using 4S lipo? Edited by laotzu - 13/Jun/2012 at 3:14pm