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HomeAircraftHelicopterMain Discussion › How to control the Heli in a spin
10-11-2005 06:02 PM  12 years agoPost 1
Rui_JC

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Portugal

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Hello guys,

The other day i saw a movie with Alan Szabo controling a raptor hovering in a fast spin!
I thought i lost the tail or something because it was spinning so fast!!!
Then he stoped in hoover!!!

How is possible to control a helicopoter in a spin?

Keep it up...literally

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10-11-2005 06:21 PM  12 years agoPost 2
Dr. Fibinotchi

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Sioux Falls SD

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well..
Do you mean piro? flying around while spinning the tail. Its just timing off of the tail or nose. Just good timing..lol


-Cody

If you want others to be happy, practice compassion. If you want to be happy, practice compassion.

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10-11-2005 06:25 PM  12 years agoPost 3
Leif

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USA

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During very fast piroettes, the trick to controlling the heli is to time ONE cyclic input at the right point in the spin.

Imagine a heli spinning in a hover in front of you. If it starts to drift to the left, your natural thought is to input right-cyclic. You can either time a right-cyclic correction for the point when the heli is tail-in to you, or you could input left cyclic when the heli is nose-in, or you could use fore/aft cyclic at the appropriate points in the spin. It's all in the timing.

I'm not saying this is how the pros do it, but this works. A well set up 90-class heli will hold a stable hover for a good long time in calm weather, so if you get it spinning there is a good chance that very little cyclic input will be needed. Spinning a heli also has a stabilizing effect, making the heli less susceptible to cyclic drift.

Leif

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10-12-2005 09:32 AM  12 years agoPost 4
Rui_JC

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Portugal

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Thanks Leif, you are correct,

i dont have the link for the Alan's video where you can see it spining fast in front of him for several seconds.
It's cool to see this realy fast.

It's also true that a bigger heli is more stable.
I'm not shure if it's a .60 or .90 raptor in that video.

Cheers

Keep it up...literally

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10-12-2005 10:50 AM  12 years agoPost 5
trvo

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Bognor Regis,UK, Aurorra Ltd

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I think Alan flies a Raptor 90, he has a 30 also, not sure about a 60.

As for fast piroettes, at first it is real hard to do but after some practise you just find yourself putting the inputs in without realising and it becomes quite easy. At that stage you can move on to piro-circuits, piro-loops, piro-flips.

I was watching Duncan Osbourne at Charmouth last weekend, he was piroetting as soon as he took off until he landed, he was even doing manouvres that I struggle with the tail stopped, takes some skill to do that but it is possible.

Trev

-----
Trex 600e
Trex 600n
Aurorra Ltd, Align UK, Align Factory, CSM, Quick UK, Heli-Lessons

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10-12-2005 05:08 PM  12 years agoPost 6
MicroDOC

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Goleta, CA

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What these guys can do with their helis never ceases to amaze me. It's called hours & hours of practice and the ability to produce accurate split second control without thinking about it. When you're that good it becomes a reflex action.

Experience is something you don't get until just after you need it!

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10-12-2005 05:45 PM  12 years agoPost 7
w.pasman

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Netherlands

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Another difficulty with correcting fast piro hovers is that there is a delay (latency ) between your stick in put and the moment the heli reacts. That may mean that you see that the heli needs some right cyclic, give the cyclic exactly at the correct time, only to have the heli give right cyclic a quarter of a turn later which causes the heli to drift in two directions instead of having it stabilized. That's one other good reason to get a low-latency Tx system like the stylus.

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10-13-2005 09:26 AM  12 years agoPost 8
Rui_JC

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Portugal

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You are also right w.pasman,

And the faster the servos, the faster the response !
And believe me, all these pro's have top material !!!

Keep it up...literally

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10-13-2005 12:23 PM  12 years agoPost 9
Rui_JC

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Portugal

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Hi guys,

Just to let you know of the link of the video that i was telling you about:


http://www.extremefunnyhumor.com/vi...ghelicopter.wmv

http://www.extremefunnyhumor.com/vi...helicopter.wmv

watch Alan controling his raptor in a fast spin !!!

Keep it up...literally

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10-13-2005 12:41 PM  12 years agoPost 10
Ninjak2k

rrApprentice

Centreville, VA

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Permission denied to download video at those links.

If you see Alan's DVD that came out not too long ago, the response time of his servos is just crazy. Of course, he has to pay more attention to battery life as a consequence, but not too big a deal.

~Dan

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10-13-2005 12:44 PM  12 years agoPost 11
Rui_JC

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Portugal

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Ninjak2k just click with the right button and choose save target as...

It works

Keep it up...literally

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