Timothy Ward

Posted by Dickw on 19/05/2020 12:23:40: As the others have said, a lower kv motor and larger prop would be more sensible for a park flyer. However, your combination could be made to work with care. I use a similar setup - the 20" span model in the attached photo has a 3200kv 9gm motor with a 4x4 prop and uses a 2s 300 mAh Lipo (model weighs 89gms). Most of the flight is on half throttle, including launching, and full throttle is only for continuous verticals. It is fast and somewhat "lively" and I am not sure I would reccomend the combination to anyone other than an experienced flyer. Dick Thanks for the reply. I thought as much, I'm probably going to give it a go with the least throttle I can manage, but if it becomes unworkable then I'll splash out on some more parts.

Hi, I am a complete beginner in the field of prop selection so please bare with me. I have managed to obtain a T-motor F20 II motor and a 4.7x4" 2-blade propeller for free, and was wondering if they would be a workable fit together. I am planning on scratch building a very small park flyer type aircraft, and I am not planning (and don't have the flying confidence) to go extremely fast. Obviously this motor is designed for twitchy fast FPV usage; I am planning on setting a throttle curve that won't let it exceed about 40%. The motor manufacturer recommends a 3x4 Tri blade prop, but obviously that's for FPV drone usage. Would the longer 4.7x4 prop, with only 2 blades, be workable? They are compatible in terms of fitting size etc. Thanks for any help, I can clarify anything if needed.