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Home✈️Aircraft🚁HelicopterBlades and Night Flying › Rotortech Blade Tip Shapes
10-29-2006 02:16 AM  12 years ago
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capman231

rrApprentice

Leicester, NC - USA

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Rotortech Blade Tip Shapes
Can some one tell me why there is three different styles of tips on the Rototech carbon blades, Angled, Curved, and Aeroflat...There has to be a reason for three different shapes, but I don't know what it is, but I would like to before I buy a set...

capman231
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10-29-2006 03:38 PM  12 years ago
gftazz

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upstate N.Y. in the Adirondacks

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To the best of my knowledge on this subject.
I believe the straight tips Aeroflat will be better for more lift as you have more blade out there so it will take less pitch and it will have a better auto hang time from MORE blade out at the end. Takes less pitch to run and can load up the motor more because of the extra piece of blade on the end (not curved or angled, less blade).

The curved tips came out next and they were better for foreward flight and used less motor power as less blade out there at the end so it cuts through the air better. Good overall blade.

The Angled tip is their latest design and I guess if it is the ones with the yellow or white coloring on the ends they are designed more for our newer 3D style of flying.

Now they may all have different AIRFOIL shapes (blade chordewise thicknesses) to them as well so that will make a good difference as well.

Tom
Oh No Someone Please Stop Me Before I Go Broke With This Heli Thing!!
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10-31-2006 02:47 AM  12 years ago
capman231

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Leicester, NC - USA

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Thanks Tom,

I had guessed something like that...I can see where the angled tips would offer the least load on the motor and would probably be faster on cyclic due to less blade tip loading and I would imagine that the angled tip blades have less tendency to twist due to torque loading at the tip...

Howard
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11-03-2006 06:07 AM  12 years ago
Brian91

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Fremont, California

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The yellow blades are the Scott Gray ones that are aeroflat and are better for 3D. I had 720mm angle tipped and switched to these 710mm aeroflat with yellow tips and I think they feel faster. I'm a Century Rep. and I know others who use the aeroflats also. You can see the differences here.
http://centuryheli.com/products/mtb...l?currentid=191
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