Testing 1,2,3: FMS Model Pilatus PC-21 1100mm, 3 blade vs 5 blade props

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What's up, y'all? So, I keep hearing folks mention in their videos that they think a 3 blade prop would improve the FMS Model Pilatus PC-21 1100mm... but I couldn't find a video of anyone actually flying with a different prop. Well, I've been rocking a 3 blade for a while now and decided it was time to share my 2 cents.
Props used:
Master Airscrew 11x7 3 blade
FMS Model 10.5x7 3 blade (from P-40)
FMS Model 10x7 5 blade (stock)
spinner:
Dubro 2.5in 3 blade. Just don't use the screws they give you 🙄
Thanks for watching 👊🏿
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#bullybreedrc #fmsmodel #pilatuspc21 #props #testing123

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Опубликовано:

26 май 2024

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Комментарии : 12

@kenrsullivan Месяц назад

Quite surprised of the results! Thanks for putting this demo together!

@BullyBreedRC Месяц назад

So was I! Thanks for watching 👊🏿

@SkunkCity_RC Месяц назад

💪

@BullyBreedRC Месяц назад

👊🏿

@robertlawson1053 Месяц назад

Good scientific method. Do you think that on the second and third flights where the gear didn't retract all the way had any effect on the results? Maybe a little but it looks like the prop is not the issue or cause ot why the speed of this plane is "slow".

@smartengineer2661 Месяц назад

Extended landing gear increases fuel consumption by 150%; accordingly, the results of comparing propellers are not correct. Also, pay attention to the level of vibrations with the chassis (almost at flutter level) and without. At the same time, even if everything was ok with the chassis mechanism, a normal experiment requires a test bench with a dynamometer.

@BullyBreedRC Месяц назад

Thanks! I definitely think the landing gear had an effect. The motor in the Pilatus actually needs to be replaced. Bearings at the very least. But as far as speed overall, this is consistent even when the plane was new. Most reviewers were surprised at how slow the plane was vs what was expected based on the full scale plane. High 70s to mid 80s is what most are getting on stock electronics. I cracked 105mph (10.5x7 3blade prop) with a strong tailwind once and a couple 90mph+ passes as well. I'll be upgrading to 6s soon. My Kingfisher that runs the same stock esc is almost as fast on level passes haha! Thanks for watching! 👊🏿

@BullyBreedRC Месяц назад

Bench tests are great for numbers but won't tell you exactly what you'll get in real world performance. And I'm doin what I can with what I have for other beginners in the hobby. I'm sure you know more about the technical side than I do. But the props were tested on about as even a playing field as possible. There's more variation in the results from the wind changes throughout the session than from anything mechanical.

@TheKenBro Месяц назад

did I miss a video bro? did you modify the landing gear to articulating landing gear versus STOCK stiff LG? please share that mod. I agree with fellow commenters loved the video and scientefic methodology used very cool bro.

@BullyBreedRC Месяц назад

Thanks! Haha and no missed vid. Funny thing is I JUST did that on thr front gear after this vid becausethe stock gear crumbled on the next flight. The springs are too weak though. Still a work in progress but will definitely do a vid when it's good to go. Thanks for watching and the feedback, brotha 👊🏿