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Old Jun 14, 2005, 11:19 AM
agapornis
italy
Joined Jul 2004
403 Posts
Himax 2812-850 Outrunner On 3s 1p 2200 Best Propeller For E-starter Gws

Any help please !
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Old Jun 14, 2005, 05:17 PM
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kensp's Avatar
Darwin Australia
Joined May 2002
6,960 Posts
Here are two choices with not much to choose between them. The GWS propeller unloads more as the speed increases.

APC 9x6 Slowfly

At 0 MPH
Motor Amps = 9.9
Motor Volts = 10.8
Input (W) = 106.4
Thrust (oz) = 23.7

At Top Speed = 39 MPH
Duration at Top Speed = 22 minutes
RPM at Top Speed 8,370
Efficiency at Top Speed = 80.6%


GWS 10x6 Direct Drive

At 0 MPH
Motor Amps = 11.5
Motor Volts = 10.7
Input (W) = 123.2
Thrust (oz) = 23.0

At Top Speed = 37 MPH
Duration at Top Speed = 23 minutes
RPM at Top Speed 8,300
Efficiency at Top Speed = 80.6%

Looking at these I would go for the APC 9x6 Slowfly as this will give more propeller clearance on take off and landing.

I think that a more cost-effective choice for the E-Starter would be the Himax 2808-980 and two 1200 mAh Cells. This would be US$ 46 cheaper, lighter and easier to keep within a normal soccer/ sports field boundaries.

Motor Amps = 6.1
Motor Volts = 7.1
Input (W) = 43.4
Thrust (oz) = 12.7

At Top Speed = 29 MPH
Duration at Top Speed = 20 minutes
RPM at Top Speed 6 223
Efficiency at Top Speed = 78.3 %

Ken
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Last edited by kensp; Jun 14, 2005 at 05:30 PM. Reason: Spelling
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