brushless motor for greatplanes dc3
09-08-2005, 07:05 AM
#3
Junior Member
Thread Starter
Join Date: Sep 2005
Location: , OK
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
RE: brushless motor for greatplanes dc3
The stock are direct drive. dont know if there would be enough room for the geared.
I might just end up selling the plane.
I might just end up selling the plane.
09-09-2005, 07:38 AM
#5
My Feedback: (21)
Join Date: Jul 2002
Location: Spencerport, NY
Posts: 7,350
Likes: 0
Received 0 Likes
on
0 Posts
RE: brushless motor for greatplanes dc3
4100Kv is way too hot for a direct drive application, and the 12mm Feiago motor is way too small to handle the power that DC3 needs anyway.
The DC3 is a Speed 400 powered, 3lb plane. A little heavy for direct-drive Speed 400, as you can only effectively fly about 18-20 ounces per Speed 400 motor in direct drive. Being a heavy-metal warbird style of plane doesn't help much, either. That adds in small wing area and high drag... It really needs about 300 Watts to fly well, 150 Watts per motor.
IMHO, a pair of AXi 2808/16 outrunners spinning 7x5, maybe 7x6, props on that 8-cell pack should fill the bill quite nicely. That's extrapolated from the performance numbers at www.modelmotors.cz, as the smallest prop they show in the chart is 8.5x5, and the power consumption is overkill.
The DC3 is a Speed 400 powered, 3lb plane. A little heavy for direct-drive Speed 400, as you can only effectively fly about 18-20 ounces per Speed 400 motor in direct drive. Being a heavy-metal warbird style of plane doesn't help much, either. That adds in small wing area and high drag... It really needs about 300 Watts to fly well, 150 Watts per motor.
IMHO, a pair of AXi 2808/16 outrunners spinning 7x5, maybe 7x6, props on that 8-cell pack should fill the bill quite nicely. That's extrapolated from the performance numbers at www.modelmotors.cz, as the smallest prop they show in the chart is 8.5x5, and the power consumption is overkill.
09-09-2005, 08:12 AM
#6
Junior Member
Thread Starter
Join Date: Sep 2005
Location: , OK
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
RE: brushless motor for greatplanes dc3
Ok now the motors are in the picture. What about a speed contol that can handle both motors at one time or am i going to have to use 2 speed controls?
