*** Please read before Commenting*** I have only been experimenting with this stuff for 2 weeks just on a whim. Maybe some of you naysayer armchair pilots who tell me it wont work when it does, could learn to fly a helicopter well enough to try this and find out for yourself. After all these 1 bladed videos I've made, some folks still don't understand the theory and tell me it cant work or why it wont, even when it does! I found that it takes less power to turn one blade than 2, And if you know about Blade 400s, you can hear that it isn't spinning any faster to create lift, it is spinning slower. And since there is no turbulence from the missing blade for the good blade to run into, it runs smoother.
*So you asked for it, a Single Tail Rotor too! And for those who sat that say it can't work, I think by now you should see I have proven this concept does work, even if it is only a model.
Remember all real planes started with models first. This is a model, and since the concept may not be new, today's technologies could prove this cost effective and a conservative alternative.
That said, plus proving the Single Blade Rotor head concept to myself in my past single blade rotor videos, led me to this next step, a Cyclic Collective Pitch Helicopter.
I used my Blade 400 for this experiment. Since having success with my truly one bladed helicopter, the Hyperfly with no tail rotor blades, this was just as natural and easy to do.
Well as you saw, it flew great in the gym. So to see how it handled winds with and extreme pull out, (when I forgot to switch on the 3D mode for a rol), and see for yourself as I made an extreme pull out from an inverted drop with ease.
Again, this machine and setup is quieter, uses less power, and is just as maneuverable or better than stock.
Since there is not as much blade turbulence, the one blade is quite sufficient, using less power with longer run times, and being quieter.
My Physics friends tell me that as long as the counter weight is on, there would be no extra stress on the bearings. Bearings get changed regularly on helis, so this is should be no problem. But if mine start wobbling, I will tell you.
Since it is SO smooth, I think the bearings will last longer, however I have never burned out a bearing in a helicopter, not even a gas one with 2 blades either.
That's because I crash them long before that. LOL!
So I think bigger helis could use this technique someday, but in the mean time, I will continue to fly my Helis with one rotor blade, because I can certainly see the difference.
If you disagree, maybe you should make your own to prove it for yourself before making an opinion. Post your video here.
Bumble bees aren't supposed to be able to fly on paper blueprints either (due to unusual design and balance) .....but they do! Backwards even!
So the point is that lots of ideas may work if your not afraid to try them. That's why I think a lot of our stuff is manufactured overseas, and not here. My Idea sounded ridiculous to everyone I told that I was going to try this, but after explaining the theory, and the visual proof, they are now believers.
Most people are afraid to try anything outside the box. But not me.
I have proven this concept to myself.
I am sure that I have proven that (at least small Flying toys, models, and flying machines will become the next units to use the single blades on as I have proved that it is stable, uses less power, and would be cheaper to make.
I like the setup so much, I am leaving my Hyperfly and Blade just like that. It is way easier to fly, believe it or not.
And remember, the single bladed prop must be longer for this to work, or increase the pitch. With outrunner motors, there is no problem. Maybe they should start putting Outrunners and ETRMS on real helis. Again, I am not trying to sell anything, simply have fun with my models and do things that most people say are absurd and won't work. Well, I like to prove things to myself.
Stay tuned for more experiments like this and thanks kindly for all your support.
Best Regards,
Dave Herbert
Academy of Model Aeronautics # 8221
Contest Director, Leader Member, Scientific.
Here are a few links.
Blade 400 (Horizon Hobby)
http://www.horizonhobby.com
AfterDark LEDs
http://www.afterdarkled.com
Academy of Model Aeronautics (AMA)
http://www.modelaircraft.org
Disney Toy Store
http://www.dpbolvw.net/d7108p-85-7NRQRTOQUNPOUWQPQX
WillyGoat Toy store
http://www.tkqlhce.com/click-3235026-10525785
RC-Television
http://www.rc-television.org
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1 blade propeller. Will it work on Nitroplanes Hawk 3D?by NightFlyyer16,164 views
Yep - I've always heard a one bladed prop, in theory - would be the most efficient prop.
On Wind Turbines - I just think it'd look too damn weird!
seq165432 2 weeks ago
will this work iin micro helicopters???
MJHN1998 1 month ago
wouldn't a single rotor produce uneven thrust and friction on the axle? I understand the counterweight idea and why this works on r/c aircraft but I don't think it would work on full-scale. I assume the blade would push the axle on that side out of alignment and increase the strain on all the components in the engine.
multicolor0 4 months ago
That's really interesting. Great experiment.
cybertrot 4 months ago
i cant believe is clicked "show more"
thiscatknowskarate 4 months ago
Im interested in the advantages and possibilities of single bladed props, but this isn't new technology-
see Single-blade_propeller on wiki
komodomoe 5 months ago
You should try a twin engine plane with 1 blade on each prop.
SeAnStAmOn 8 months ago
I DREAM with having that garage, or at least that helicopter..
migueyeah123 10 months ago
what about doing this to a coaxial helicopter?
mrfourtysevenman 10 months ago
i never thought that this would work but i kept wathcing and it amazed me to see this working. you could convice the U.S. airforce to take all blades off the rotors and leave one on nice job
The911SONIC 10 months ago