When it comes to retail pusher-whoops, there is only 1 manufacturer: EMAX with its TINYHAWK SERIES! Popular due to its distinctive flight characteristics. Described as "very locked in, like on rails", these whoops are also not very efficient or suited for outdoors, but inside they fly like a dream. Maybe more suited for "flat-out racing" where efficiency and practicality aren't priorities?

The most difficult part of these conversions was modifying and changing out the props, most of them from manufacturer Gemfam, notorious for being really tight and hard to remove… 🙌😬 This tightness can also be a plus of course, but I still can't feel the tips of my fingers...🙌!

Watch this video from Square One: 1S 450 mah, 7 minutes flight time!? Motor and prop comparison | Square One FPV

@petereuvideodrones

Жыл бұрын

Ty, what a great channel by Square One!👍Luv the Insanity75!🤩Now I really miss my ultra light inverted whoop…😢 it flew like on rails.🛸Next time I’ll make a point of using 2 bladed props and do a more scientific comparison, but for now I’m pretty much convinced unrestricted input is more efficient than unrestricted output.

Thanks for the test!! Such a good real life comparison. I was on the fence to do one myself till i found your video. I wanted to test it because in my mind it should be the other way round: More efficiency with pushers. It would make sense because the air from top can come from all directions and is very slow and therefore should produce less drag. In contrast to the air under the prop, which is very fast, the obstruction should produce much more drag and turbulence, which should cost a lot of energy. (Example: You can´t "suck out" a candle but blow it out with ease.) So i don´t really understand why pushers are less efficient... any guess?

@petereuvideodrones

11 ай бұрын

The only conclusion that I can make is that clean air-input is more efficient than clean output. So if your props are obstructed by struts, make sure the air is blown through them. And not sucked trough the struts like in the Tiny Hawk design. Trouble is that in most pusher-types the props are already obstructed by at least one vertical strut above the prop. And also the fact you can’t put a vertical strut underneath (on top of the motor) as a reference. For a real test between a push and pull setup you should install a motor on a vertical stick and rotate props and motor direction. I wonder what efficiency you can get out of them? I’ll bet you push and pull are almost the same. But in practice I see pushers having a disadvantage because their Air-input is never clean, although they fly like on rails. Maybe that’s the sacrifice most conventional whoop-frames make? Less control, but a higher efficiency in comparison to something like the very distinct and fun flight-characteristics of the Tiny Hawk. Hope I make sense. Are you still going to do a test relating to push and pull?

@glitsch7966

11 ай бұрын

@@petereuvideodrones Hi, i'm not planning to do a precise bench test since i'm only interested in the praktical application on the quads. So your test was exactly what i needed. So thanks a lot!

👇 *Promo sm*