What about these rotortechs

rotor head33 · 03-13-2012, 03:27 AM

So I have 609mm rototechs on the bird now. Never flown rototechs before and really wanna sell them and put some radix 625v2s. Do yall think that I could make a good chunk off the blades? Blades are flawless or do they fly ok. I want super fast cyclic control (running flybarred)

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Dumbthumb75 · 03-14-2012, 05:37 AM

What do the Rotortech's weigh compared to Radix? As the Rotortech's are shorter, I would expect them to give faster cyclics than the longer Radix, but weight also plays a difference.

In essence:

Shorter, lighter blades = faster cyclics, less stability in FFF, less energy in autorotation.

Longer, heavier blades = slower cyclics, more stability in FFF, more energy in autorotation.

rotor head33 · 03-14-2012, 09:24 AM

Never really looked at the specs and I agree and understand your reasoning. Apparantly they seem to be a pretty popular blade but are definitely ugly IMO. I'll compare and contrast specs I guess

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fastflyer20 · 03-14-2012, 09:57 AM

They have the lightest, quickest 690 blades I could find and really like them. Try them before condemning them,especially if you like quick cyclic.

ngin · 03-14-2012, 10:26 AM

The Rotor Tech's have been my favorite blades for awhile now.

I have found after using many blades that weight is not the only criteria t determine performance. I think where the weight is placed - further inboard or outboard on the span and/or further forwarard or rearward on the chord) effects the performance more then a few grams of weight difference.

The airfoil and tip shap also have a great influence on that performance and the ones used on the RT's seem to work very well.

I think you should try them. You may find you really like them, just as I did.

rotor head33 · 03-14-2012, 11:06 AM

Should I stick to 610s or go bigger? I'll try them out!!

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Dumbthumb75 · 03-14-2012, 11:07 AM

An additional "spec comparing tip" after reading post #5 :

If it's marketed as a 3D blade, the chordwise CG is usually more forward, This also goes for narrow chord blades. Therefore, in general, a blade with comparable narrow chord is more agile than a wider chord.

rotor head33 · 03-14-2012, 11:09 AM

I agree

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03-13-2012, 03:27 AM	#1
rotor head33 Registered Users Join Date: Nov 2009 Location: United States	What about these rotortechs So I have 609mm rototechs on the bird now. Never flown rototechs before and really wanna sell them and put some radix 625v2s. Do yall think that I could make a good chunk off the blades? Blades are flawless or do they fly ok. I want super fast cyclic control (running flybarred) Sent from my iPhone using Tapatalk __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. velocity 50- Total G

03-14-2012, 05:37 AM	#2
Dumbthumb75 Registered Users Join Date: Apr 2009 Location: Oslo, Norway	What do the Rotortech's weigh compared to Radix? As the Rotortech's are shorter, I would expect them to give faster cyclics than the longer Radix, but weight also plays a difference. In essence: Shorter, lighter blades = faster cyclics, less stability in FFF, less energy in autorotation. Longer, heavier blades = slower cyclics, more stability in FFF, more energy in autorotation. __________________ minicopter Diabolo, Henseleit TDR, MA Spectra-G, Raptor 50T Futaba 2.4 GHz

03-14-2012, 09:24 AM	#3
rotor head33 Registered Users Thread Starter Join Date: Nov 2009 Location: United States	Never really looked at the specs and I agree and understand your reasoning. Apparantly they seem to be a pretty popular blade but are definitely ugly IMO. I'll compare and contrast specs I guess Sent from my iPhone using Tapatalk __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. velocity 50- Total G

03-14-2012, 11:06 AM	#6
rotor head33 Registered Users Thread Starter Join Date: Nov 2009 Location: United States	Should I stick to 610s or go bigger? I'll try them out!! Sent from my iPhone using Tapatalk __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. velocity 50- Total G

03-14-2012, 11:07 AM	#7
Dumbthumb75 Registered Users Join Date: Apr 2009 Location: Oslo, Norway	An additional "spec comparing tip" after reading post #5 : If it's marketed as a 3D blade, the chordwise CG is usually more forward, This also goes for narrow chord blades. Therefore, in general, a blade with comparable narrow chord is more agile than a wider chord. __________________ minicopter Diabolo, Henseleit TDR, MA Spectra-G, Raptor 50T Futaba 2.4 GHz

03-14-2012, 09:57 AM	#4
fastflyer20 Registered Users Join Date: Nov 2008 Location: Buffalo Area	They have the lightest, quickest 690 blades I could find and really like them. Try them before condemning them,especially if you like quick cyclic.

03-14-2012, 10:26 AM	#5
ngin Registered Users Join Date: Jun 2010 Location: West Coast	The Rotor Tech's have been my favorite blades for awhile now. I have found after using many blades that weight is not the only criteria t determine performance. I think where the weight is placed - further inboard or outboard on the span and/or further forwarard or rearward on the chord) effects the performance more then a few grams of weight difference. The airfoil and tip shap also have a great influence on that performance and the ones used on the RT's seem to work very well. I think you should try them. You may find you really like them, just as I did.

03-14-2012, 11:09 AM	#8
rotor head33 Registered Users Thread Starter Join Date: Nov 2009 Location: United States	I agree Sent from my iPhone using Tapatalk __________________ To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. velocity 50- Total G

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