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F16 Conversion EDF to Prop

Old 06-22-2019, 10:57 AM
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solentlife
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Default F16 Conversion EDF to Prop

OK guys ... I have a Lanxian 70mm EDF F16 that I really am not fond of. The 70mm EDF flies it - but needs so much power - it is just overweight ... I ended up using 5S in her.

Bare weight all in but without LiPo is 1050gr
LOA = 1020mm
Span = 780mm

My thoughts are to remove the EDF unit and fit a prop up front. If I hollow out the nose area - I can slide a brushless in there and then spinner can give nose cone back.. Battery size can be reduced to possibly 4S ...

Question is what motor and what prop ? I was thinking something around the 35 - 38 size with 8 to 10" prop ?

Ideas please ?


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Old 06-22-2019, 11:04 AM
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eCalc :

With a 3542 / 1000kv and 9x6 prop ... it says I should have at least 1.49 : 1 Power to weight and max speed of 102kph.

mmmmmm interesting.
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Old 06-23-2019, 12:29 AM
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Jools
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I think the REAL problem is lack of wing area. The wing loading must be enormous. It'll have a speed range of very fast and *loody fast!

The other problem may be that big all-moving elevator in the propwash. We've found converting slope-soarers to electric, that fixed stabs with hinged elevators are FAR superior to AME.

Last edited by Jools; 06-23-2019 at 12:34 AM. Reason: Addition
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Old 06-23-2019, 09:16 AM
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The all moving tail - that got broken a while back and is now fixed + rear moving elevator as conventional plane.

Its surprising actually that she flies slower than you expect ... the fuselage is somewhat a lifting body to complement the wing area.

But not when I first tried the new elevators !! Had to keep speed up to give authority to keep nose up !! Pity about the landing .. buts she's RTG again ..

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