RunRyder RC Helicopter Topic - Avro Build

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Blitz Helicopters Avro 90 > Avro Build

robpod
New Heliman
Location: Brooklyn, NY - USA

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Hello
Im waiting for my Avro kit to arrive.
I just got OS engine with pump, Futtaba GV-1 Governor , SG reactor X,
Futaba GY 520.
Any recommendations on servos, JR or Futaba? (models)
What starter should i use?
Please let me know what else should I get?

Thanks
Bob'

05-11-2009 02:23 AM

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hdskullfire2
Senior Heliman
Location: Bethlehem, Pa.

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Congrat's on the upcoming build Bob...

I used JR servos, however your choice might be based on budget. 8717's should work out fine. I used a 8900G on the tail.

I have a Sullivan hi-tork with a 4s 3700mah strapped to it. works fine to turn over a 90.

If you want, check out the rest of the Avro posts, there is lots of builders information for you to take in. I've recently completed mine and I have a builders blog as well. If you have the time, check it out. You will find some very helpful information to guide you during the build phase.

It's located here:

http://hdskullfire2.wordpress.com/build-blog/

Good luck and keep us up to date with your progress. Don't be shy and ask as many questions as you need.

Steve,
Bethlehem, Pa.

Your next stop, the Twilight Zone. Now get'a move on....Hey, get me a cold one first..!!

05-11-2009 02:33 AM

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robpod
New Heliman
Location: Brooklyn, NY - USA

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Thanks
Budget is not a issue here.
I have checked your build site, great work.
If you have in mind any other parts should get let me know.
Will post some pics once I will start.

Bob

PS
Where do you fly in PA
Im from NYC

05-11-2009 03:18 AM

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hdskullfire2
Senior Heliman
Location: Bethlehem, Pa.

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Bob,

Myself and several friends fly at Ashfield R/C, in Ashfield, Pa. just south of Jim Thorpe, Pa., and a few miles north of the Lehigh Valley region.

If anything in the way of parts comes to mind I'll let you know.

Steve

05-11-2009 12:09 PM

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robpod
New Heliman
Location: Brooklyn, NY - USA

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Thanks for info,
How did you power throttle servo on your heli ( in your specs you have high voltage servo), reactor x gives you only three 6.8V outputs,receiver gets only 5.2v

Bob

05-11-2009 07:41 PM

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hdskullfire2
Senior Heliman
Location: Bethlehem, Pa.

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Bob,

Because I have a Spektrum AR-7100R, I feed the RX directly from a 2S 5000mah lipo and I used 4 JR8717HV high voltage servos (Pit, Aile, Elev, & Thro) on the unregulated side of the 7100R. If you use anything other than HV servo's, you might want to play it safe and feed them through a step down regulator like you mentioned. In my case the JR8900G tail servo & Spartan gyro needed to be on the regulated side of the 7100R to protect them.

On my T-Rex600N I did the same only there I used a Spektrum 6010 regulator to drop the voltage between the lipo and the RX due to servo's that could not take 8V direct.

You might want to pull up the spec's on the 7100R to compare the voltage stats and choose from there.

Good luck,

Steve

Your next stop, the Twilight Zone. Now get'a move on....Hey, get me a cold one first..!!

05-11-2009 08:33 PM

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helipulse
Heliman
Location: Toronto, ON, CANADA

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I used Futaba BLS 451 and I just love them. I am using reactor X and have set it to 6V for a reason. BLS 451 are inexpensive servos as well. Try using the Outrage Muffler. One of my friend has it on his Trex 700N and he loves it and for a price less than $90, just cant go wrong.

Very nice heli. I went with the stable set up, but ordered the 3d setup and will change it as I am always scared of having a boom strike (could be mental block).

Happy flying.

05-12-2009 02:43 AM

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robpod
New Heliman
Location: Brooklyn, NY - USA

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Hi All
Almost done with my build,
Can someone help me with engine setup
I have OS .91HZ with pump
Futaba governor
don't really know if I should use carbsmart for mixture
need some help with plumbing
please help

05-18-2009 12:44 AM

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helipulse
Heliman
Location: Toronto, ON, CANADA

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I am running a YS engine, here is a close up picture of my plumbing.