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HomeAircraftHelicopterFuel-Helicopters New or Limited ActivityElyQ › Consensus on Front Mounted TR Servo
06-08-2009 02:36 AM  9 years agoPost 1
blbills

rrKey Veteran

Provo, UT

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What is the consensus on the front mounted TR servo upgrade? Is it necessary have this for CG purposes?

I'm trying to keep this heli as light as possible and I was toying with the idea of leaving off the radio tray so that it would resemble the pre-production model of Markus Kim but I wanted to hear from someone that had a vision to know if the CG will work with the components that I am putting in.

Here is my future setup:
8717's on cyclic
8900G/Spartan
HS-65MG for throttle
7100R
OS Hyper with either Align pipe or MP5SB

Will I be able to achieve a proper CG if I just leave the TR servo on the boom and leave the radio tray off with my chosen components? Or should I leave the tray on and purchase the front TR servo mount?

Thanks!

Brian

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06-08-2009 04:19 AM  9 years agoPost 2
tucfaz

rrApprentice

Singapore

My Posts: All  Forum  Topic

I believe leaving the tray intact won't make much significance difference in weight.. or ant least the amount of weight reduce won't make significant difference in performance. But I'll want to keep the vision 50 a little heavy on the nose..

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06-08-2009 11:20 PM  9 years agoPost 3
RappyTappy

rrProfessor

Traveling the USA

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I use the rear tail servo location and front radio tray. It's all good

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06-09-2009 04:35 AM  9 years agoPost 4
Mapleleafs

rrVeteran

Ontario, Canada

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did your heli come out tail heavy with the rear mounted servo?

Vbar Trex 700N, Vbar MSH Protos 500, Vbar Logo 400

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06-09-2009 06:47 PM  9 years agoPost 5
RappyTappy

rrProfessor

Traveling the USA

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It is a little tail heavy yes, but I'm using a 2 cell fromeco li ion and 9257 for throttle so its light up front. The arizona regulator I have up front balances it out a little. It probably would be better having the servo up front for weght distribution, but eh it flies pretty good and rolls straight enough for nice and low rolling circles so I'm not gonna mess with it and just fly it.

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06-09-2009 06:58 PM  9 years agoPost 6
jschenck

rrProfessor

La Vista, NE.

My Posts: All  Forum  Topic

I have the tail servo up front and it's still tail heavy for me. I'm running straight A123, no regulator so the battery system is light. I'm going to switch the throttle servo out for an HS81 or maybe an HS65 to shave another ounce off.

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