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HomeAircraftHelicopterHelicopter Main Discussion › flapping head head
09-05-2017 02:27 AM  15 months agoPost 1
Felino

rrApprentice

Mexico city

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For you guys that have used a flapping head what do you think?
Is it any better than a solid axle head??
Is it true it is better on wind conditions??
I ask because SAB sells a flapping head that can be used on 12mm main shaft helis. (HPS2)

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09-05-2017 02:23 PM  15 months agoPost 2
RGorham

rrLegend

Livermore, CA - USA

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SAB HPS2 Rotor Head Question
If you use the "A" or "B" dampers with the HPS 2 rotor head you will definitely notice an improvement with hovering (especially in windy conditions) and tracking in fast forward flight will have less ballooning effect plus you will notice smoother characteristics. (slightly softer feel)

If you use the stiff "C" dampers not much difference than the standard HPS rotor head with regards to stability and flight performance.

Individual dampening is ideal especially in precision F3C style flying however you will lose a little bit "crispness" around center stick but overall a more stable feel. (IMO) Note: that can be edited in your flight control system.

My recommendation: Try one and start with "B" dampers.

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09-05-2017 05:22 PM  15 months agoPost 3
Felino

rrApprentice

Mexico city

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Great!!
And thanks for the info.
Flapping heads are not popular and just a few people know about it.
I will give it a try some time soon. I like the fact a plapping head can handle wind conditions better than a solid axle head by using the proper damper.
I didn´t understand why plapping heads are popular in Japan but not so pupular outside Japan.
Japan is a country were F3C is practiced a lot and therefore a head that can perform better on wind conditions while hovering is prefered.

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09-06-2017 06:14 AM  15 months agoPost 4
MDSCUSTOMS

rrApprentice

North Wales, U.K.

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Flapping heads are fitted to the vast Majority of Helis so hardly not popular.

There are exceptions though where you want an agile & fast machine capable of aerobatic moves. Then you are referring to the rigid head which was developed for that purpose. Tested on the Lockheed XH51 model 186/286 and later on the AH56 Cheyenne. Also used on the AH64 Apache, Lynx Helicopter (all versions) and the new AW159 Wildcat version. Not forgetting the BO-105 also known as the Red Bull Helicopter. There are more out there that I have not listed.

It all depends on your style of flying. For 3D or F3C then rigid heads are better suited. For normal flying or scale flying, Flapping heads are still desirable (Plus they work well without the need for any FBL units)

Mark

I'm only here coz I'm not all there !!

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09-06-2017 04:14 PM  15 months agoPost 5
MattJen

rrElite Veteran

UK

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never liked rigid heads,which most of the vario scale machines are, you then have to rely on the flex of the blades to take up what a flapping head would.

My Longranger had a flapping head and it was an absolute pleasure to fly.
On my other scale models I have often removed the rigid vario head and used an Xcell or Century Predator head..

There is also a lot one can do with shimming and using different durometer dampers to help..

All The Best

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09-06-2017 04:59 PM  15 months agoPost 6
870heli

rrVeteran

Monson Ma. USA

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Flapping heads work well, just like any other head. Now a days with all attention given to 3D everyone wants a head as stiff as can be. If you want to fly at lower head speeds and enjoy a smooth controllable heli a flapping would be nice.
Something must flap head blades. That's why you can't slow down a ridged 3D set up. It starts to wobble.
I didn't know you could buy any heads other than a solid spindle set up.
Sounds like it would be enjoyable to try.
Buz

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09-06-2017 05:28 PM  15 months agoPost 7
reddragon

rrElite Veteran

Brooklyn, N.Y.

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The Old Kyosho Concepts with their flapping heads were extremely stable and a joy to fly. I miss them.

Wayne - Fly it like you stole it! You're in good hands with Runryder!

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09-06-2017 06:55 PM  15 months agoPost 8
MattJen

rrElite Veteran

UK

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+1 Concept head, pleasure to learn on and very forgiving in gusty conditions with analogue servos.

All The Best

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