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HomeRC & Power✈️Aircraft🚁HelicopterFlybarless Rotor Head SystemsOther › Blade stops with V Bar ?
06-03-2009 09:31 PM  10 years ago
Jeff polisena

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westpalmbeachflorida usa

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If you auto all the way down but most turn throttle hold off and power up (Bail Out) before hitting ground so blades being tight will help and in normal mode you are not at full throttle at negative stick positionI stole it ,flew it and gave it back ;)
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06-03-2009 09:55 PM  10 years ago
Foster

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Saline MI

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I'm very disappointed with the replies or lack there of from 4 members of this board, two of which I thought I could respect their knowledge and replies on this board. I just wanted a better understanding of the manuver.

I don't know what the issue is but I personally believe you should READ the entire discussion before trying to "help".
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06-04-2009 02:21 AM  10 years ago
tchavei

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Portugal

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I wasn't even to post in this thread as I have nothing to add to the "blade stop" but Foster, I think you're being rude. Every member here gave you a correct answer. Most of them however assumed some background knowledge so they didn't explained what they meant step by step. Now you're calling on them for that? Maybe a small funny comment like "explain it to me like if I were a 2 years old" could have made wonders and produce much more detailed explanations but bash them for the lack of understanding? I know we all have days our brains "lock" momentarily but there is no reason to be mad at who tried to answer you.

Standard blade stop: climb as high as you can, hit throttle hold, keep in full positive pitch until the blades stop. After this, give immediately a lot of negative pitch and play with the collective as the bird tumbles down ie when upright full negative, when inverted full positive. Do this until the blades gain enough speed and you regain cyclic control (which you obviously don't have when the blades are stopped). Once you have cyclic control, auto in like you always would. In this case its also important to have the blades tight because while the bird is tumbling down, the blades might fold under the upcoming wind since there is almost no centrifugal force keeping them strait.

Wussy blade stop: Same as above but the pilot comes out of throttle hold to speed up the blades again. Sometimes they do it for such a brief moment, spectators don't notice the "cheat". In this case, its even more important to have the blades tight because the sudden torque coming from the engine will fold the blades. On a 90 sized bird, this torque can be so high that even very tight blades might fold if you flick directly from throttle hold into idle-up. Thats why many switch first into normal mode and only then into idle up. If you lookup a video of Jason Bell flying an Aurora (I think its called blade stop aurora or something like that) and watch the blade stop very closely, you will notice that he switches out of throttle hold for a second or two to get the headspeed back up.

I hope this is now perfectly clear

EDIT: Obviously if you have to abort the consequent auto in any of the above mentioned situations, you risk a blade fold like explained in situation #2.

Tony

--------------------
"Perfection and patience usually walk side by side..."
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06-04-2009 03:41 AM  10 years ago
Foster

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Saline MI

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Sorry I didn't realize some people consider spooling the motor back up an autorotation. I was getting tripe BS childish answers without asking for them tchavei. One last thing, soft start on my ESC's works in all modes
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06-04-2009 04:41 AM  10 years ago
majestic12

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Avon, CO

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Sorry I didn't realize some people consider spooling the motor back up an autorotation. I was getting tripe BS childish answers without asking for them tchavei. One last thing, soft start on my ESC's works in all modes
I too was kinda taken back by some of these responses. I'm with Foster, an auto ain't an auto if you spool back up with the motor. You need to put it on the ground unpowered in my book

Also I do believe in FAI/F3C you have to KILL the engine...gotta be dead stick to for an auto to count!

TREX 700N Flybarless
HF:STMPNGRND
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06-04-2009 09:33 AM  10 years ago
Jeff polisena

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westpalmbeachflorida usa

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Bail out or crash Hmmm!!!! but still a blade stop either way it still take some guts to try .I stole it ,flew it and gave it back ;)
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06-04-2009 03:14 PM  10 years ago
majestic12

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Avon, CO

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but still a blade stop either way it still take some guts to try .
No doubt and way beyond my comfort level. But when some of the first responses to a question about autos reply about powering back up..it had me scratch my head. I understood what Foster was asking about and I guess not everyone lands their autos on a regular basis. If you power up and bail on landing, well I call that an approach not an auto.

TREX 700N Flybarless
HF:STMPNGRND
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06-04-2009 06:43 PM  10 years ago
Jeff polisena

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westpalmbeachflorida usa

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When I started this I inquired only on blade stops and somehow we got autos out of it . We do have a lot of comprehension barriers here from all over the world so just take it for what it is and have fun . I don't try to do a full down because I usually run out of altitude before blades spool back up so I power up to fly out .It is fun to see where topics go I stole it ,flew it and gave it back ;)
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06-04-2009 07:02 PM  10 years ago
Ronald Thomas

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Gainesville, Fl, USA

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I was getting tripe BS childish answers without asking for them tchavei.
I surely hope you weren't referring to what I wrote. I was only trying to clear up what seemed to be a misunderstanding. If my answer was considered "tripe", you too sensitive........Ron
Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!
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06-04-2009 08:06 PM  10 years ago
Foster

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Saline MI

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No doubt and way beyond my comfort level. But when some of the first responses to a question about autos reply about powering back up..it had me scratch my head. I understood what Foster was asking about and I guess not everyone lands their autos on a regular basis. If you power up and bail on landing, well I call that an approach not an auto.
Thank god man I was worried I was seriously losing my mind. I appreciate you stepping up and saying that man I really, really do.

Wasn't trying to be rude but I started to get the impression that I was being screwed with and/or ignored because I'm a newb. I never once asked what a blade stop was yet all the replies were trying to tell me what I already knew EVEN AFTER I clearly stated what I was trying to understand.

I honestly never thought you would try to restrart the blades with the motor in the air... just seems completely wrong to me.
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06-04-2009 08:08 PM  10 years ago
Foster

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Saline MI

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I was getting tripe BS childish answers without asking for them tchavei.
I surely hope you weren't referring to what I wrote. I was only trying to clear up what seemed to be a misunderstanding. If my answer was considered "tripe", you too sensitive........Ron
I did actually since the definition of tripe is; 2 : something poor, worthless, or offensive

It was a poorly thought out and worthless to the person it was directed to.

Sorry but I call it like I see it, you didn't even bother to read the rest of my replies or the thread.
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06-04-2009 08:23 PM  10 years ago
Ronald Thomas

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Gainesville, Fl, USA

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Actually I did and the sensitive was directed to your responses there after. Since everybody else seemed to know what the OP was referring to, I just assumed you were just a little off, now I know better.........RonTeam MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!
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06-05-2009 12:12 AM  10 years ago
tchavei

rrProfessor

Portugal

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Usually a blade stop is followed by an auto but the definition per se doesn't imply an autorotation. Interesting thoughts here. I never considered a blade stop as not being part of an autorotation but its possible indeed to do that.

However... personally I can't see the big deal about doing blade stops if you just flick the switch afterwards... I have to try that next sunday.

Tony

PS - I aborted 2 autos in 5 years training and it was because I could clearly see that I would be screwed if I choose to continue (like heading into a wall, rocks, pit, dogs, children, etc).

--------------------
"Perfection and patience usually walk side by side..."
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06-05-2009 12:44 AM  10 years ago
Jeff polisena

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westpalmbeachflorida usa

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Don't hit switch it can get expensive and discouraging .I make stops more interesting by letting heli fall with stopped blade for long time sometimes powering back on is required just to get heli level.I had a buddy ask me if I could do a tail sliding blade stop . I cant, it ended in a splat I stole it ,flew it and gave it back ;)
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06-05-2009 12:46 AM  10 years ago
Jeff polisena

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westpalmbeachflorida usa

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"PINKED" oopsI stole it ,flew it and gave it back ;)
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06-05-2009 01:24 AM  10 years ago
Yug

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UK. Herts

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go to high altitude, kill engine and apply perhaps 4 degrees of positivce pitch, blades stop and heli automatically rolls inverted. Blades spool up , then apply 4 degrees of negative, again blades stop and heli rolls and so on. For this, it is imperative that blades are really tight in the grips else is curtains.
The analogy can be likened to a car when you lock the rear end and the car wants to swap ends.
Vegetable rights and Peace
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06-05-2009 01:32 AM  10 years ago
wgeorge111

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West Palm Beach, Fl

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This is a very confusing post. I do not know why everyone is acting like a long tail cat in a room full of rocking chairs. It seems to me the original post asked if you can do blade stops with the vbar. No where in the original post does it say blade stops with an auto rotation. In fact no where in the original post does it say anything about auto rotations. It is really cool to see a heli falling out of the sky with the blades stoped. What is even better is seeing it power back up and imediately going right back in to extreme hard 3d. I have not seen anything that says if you want to do a blade stop THAT YOU HAVE TO AUTO IT IN FOR A LANDING. If you are having fun with your tricks and enjoy them that is all that matters. If anyone is upset with my post please call the rc heli police. It is all about the fun. Please in the future remember to read the original post question and please stop,think, and then answer
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06-05-2009 03:37 AM  10 years ago
tchavei

rrProfessor

Portugal

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^^^

Maybe you have a point but what makes a blade stop hard is being able to successfully auto the bird down AFTER.

I see no technical skill besides a cold head stopping the blades and then flicking out of TH. It adds no technical expertise and just puts unnecessary stress on the machine. If you want to do it, go for it and it might impress many who aren't knowledgeable but thats all.

Tony

PS - Thinking about this, crack moves bring nothing new either, stress the machine too and impresses the majority of the crowd... hum, maybe we all should start blade stops with power recoveries.

Tony

--------------------
"Perfection and patience usually walk side by side..."
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06-05-2009 09:33 AM  10 years ago
Jeff polisena

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westpalmbeachflorida usa

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This is what makes the world go round . Everyone has their own ideas of what is cool .I stole it ,flew it and gave it back ;)
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06-05-2009 01:48 PM  10 years ago
SMITHB72866

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FLORIDA

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Hi Jeff Blade stop autos are a lot of fun

All i can recommend is make sure it is up really high and if the wind is blowing you want to start over your head. Because for the few seconds it free falls you will have no cyclic control .You would be amazed how far it can blow away in the free fall

O yea make sure your blades are fairly tight in the grips

Bobby
RREmodels
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