Plettenberg 220/25/A1 10 cell F5F motor for 3m+ sailplane? - RC Groups
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Jul 02, 2003, 10:01 PM
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bfraser's Avatar

Plettenberg 220/25/A1 10 cell F5F motor for 3m+ sailplane?

Just wondering if anyone uses motors like this 10 cell Plettenberg one in big electric sailplanes and not just in the smaller F5B (F5F) types? I was thinking of getting one and putting it in an 3.45m electric Graphite but perhaps a less powerful motor would be more suitable. I have a 7 cell F5B Plettenberg motor (two actually, although I just sold the unused one) and I really like its quality and high climb rate (power) so I was thinking a 10 cell version would be nice to have for a big 10 cell sailplane.
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Jul 02, 2003, 11:01 PM
Registered User
I am using an Aveox LMR16 motor in my 3.5 meter Reichard Blizzard. It works well with 10 cells and a 16x8 prop. I just built a 14 cell 2400 nicad pack for horsing around.

The plettenburg motor on 8 cells with a prop like a 16x8 might work well. Run the numbers on P-calc and see what you get.

The AUW of the blizzard is around 106 oz.
Jul 02, 2003, 11:08 PM
around Colombia
ShredAir's Avatar

You can use this motor with an RFM 18.5x12 prop on 10 cells. It'll be very powerful for the plane.
If your 7-cell is the HP220/15 A1 P6 7:1 motor and you wanted to keep the plane lighter, you can use that on 10 CP-1700 cells and an RFM 14x10 prop.

Dieter Mahlein