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HelicopterMain Discussion › What are the benefit of using longer tail blades
01-02-2011 05:18 AM  6 years agoPost 1
TonyC.

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CA

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Please educate me on the tail blades.

What are the benefit of running longer tail blades?(105)

and

What are the benefit of running shoter tail blades?(95)

Thand you,

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01-02-2011 05:53 AM  6 years agoPost 2
drdot

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So. California, Orange County.

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fwiw...

Tough question to answer...Generally, my experience with tail blades has been bigger is better, until the limit of your helis' power system is reached...I try to balance the tail blades with stopping characteristics, holding ability, etc. Kind of a personal feel thing...Either length should hold fine....Unless you've a low t/r speed due to gearing or headspeed...then the longer should hold better..

Hope that's clear enough to help...

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01-02-2011 07:17 AM  6 years agoPost 3
Solmanbandit

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Tucson , AZ

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I read in an issue of RC Heli and they were talking about this.

Basically they said that you want to run the shortest tail blade that you can. A longer tail blade will give you more authority, but will rob some power. It is good to find a length that will suit your needs and/or flying style.

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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01-02-2011 10:46 AM  6 years agoPost 4
heli-cuzz

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Pittston, Pa. USA

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95mm for 50 size helicopters and 105mm for 90 size helicopters.
Sure its possible to switch it around, but not recommended.
I switched from 95mm to 93mm on my 50 due to main blade to tail blade strikes during piro-flips. That cured that problem.
My 90 spins 105mm tails.

I feel you'll notice tail authority loss when using plastic flimsy tail blades comparing to a good stiff set of carbon fiber blades.
Between 95 and 93 tail blades. I couldn't tell any difference besides no more main blade ruining my 95mm tail rotor blades.

Fury 55 NIB Furion6 CGY750 fbl helicopter-Frenzy CGY750 fbl nitro-Frenzy fbl NOBAR90

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01-02-2011 11:31 AM  6 years agoPost 5
Andypants

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Sydney

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Using longer tail blades can give you some extra artillery when it comes time to sort out a stubborn tail wag. I had a wag on my Rex 500 with the stock CF tail blades - tried all the usual things with limited success. Then I slapped on some slightly longer KBDDs and a few adjustments later ands I was done. The increased surface area is a killer and lends loads more tail authority. I found I was able to lower mechanical gain and it helped the DS520 still keep up. A BSL251 was still the best upgrade for the tail, IMHO.

And I can't really back it up, but I disagree with RC Heli's assessment longer blades rob you of power. TGhose little suckers are spinning so fast I doubt they notice at all, and especially when coupled to the main power system with a TT, I think they have more than enough torque to run tail blades more or less as large as we like. I stand to be corrected on that though.

TL; DR: longer tail blades are a good idea and can help sort out bothersome wag issues.

Lots/Very high/Ridiculously hard/No you can't

I HEART BLADE FARTS

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01-02-2011 11:46 AM  6 years agoPost 6
blazingJ

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houston,tx. usa

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i'm running 68mm tail blades on my 450 and it holds alot better than the shorter ones.piro's are faster and stops on a dime.

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01-02-2011 12:55 PM  6 years agoPost 7
Ronald Thomas

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Gainesville, Fl, USA

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Longer tail blades give you more leverage for the tail at the expense of robbing some power.

Team MikadoUSA 480XXTreme, 550SX, 600SX, 700XXTreme, 800XXTreme!!

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HelicopterMain Discussion › What are the benefit of using longer tail blades
01-04-2011 02:27 AM  6 years ago •• Post 8 ••
TonyC.

rrApprentice

CA

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Thank you Thank you Thank you.

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01-04-2011 03:41 AM  6 years agoPost 9
Solmanbandit

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Tucson , AZ

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i'm running 68mm tail blades on my 450 and it holds alot better than the shorter ones.piro's are faster and stops on a dime.
68mm on a 450? Wow! I believe my Pro has 62 and it has no problem with tail authority.

Trex 700E / Trex 500 ESP - Ikon/ HD 500 - Ikon 2/ Goblin 500 Ikon 2

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