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Vario Sky Fox - Benzin - Evolution - Xtreme > My newest project

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

Hi,

here are some impressions of my new project. What do you think. I am grateful for any improvement suggestions.

12-13-2007 10:00 PM

DKTek
Senior Heliman
Location: Melbourne, FL-USA

Looks like a long run for that throttle servo to the carb. Make sure the control rod is supported to prevent flexing. Sux having the rod flex and shake the throttle. I like the four servo config and CF layout. What's your rotor diameter going to be? 2.5 meter would be nice. Something to add to the XLV experience.

The beatings will continue until morale improves...

12-31-2007 07:54 PM

DKTek
Senior Heliman
Location: Melbourne, FL-USA

Hmmm, I'd be worried about the front gear strut. Making it two parts may compromise the strength, especially with the weight of the gas engine.
Also, the clutch aligns with the gear too. There's probably not enough space for both. Tight spaces around the clutch bell isn't very friendly for servicing and inspection.

The beatings will continue until morale improves...

12-31-2007 08:00 PM

hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Nice CAD work. Make it so the servos can do 120 or 140 eCCPM. I don't like the 4 servo setup. Made mine 3 servo 120 but it's tough getting the servo horns and the swash link alignment.

What software are you using?

Only CHANGE you'll get is what's left in your pocket.

12-31-2007 11:29 PM

HOMEPAGE

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

I use several programs, like Autocad Mechanical 2008, 3D Studio Max, Solidworks and Solid Edge.

01-01-2008 01:44 PM

IYKIST
Veteran
Location: London united kingdom

Very nice cad work. Is this a gasser or a nitro and if it is a nitro how are you going to mount the engine like the stratus i think. I don't really like the servo arrangement although compact does not do it for me, just my opinion.

01-05-2008 01:40 AM

HOMEPAGE

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

the current status of my acrobatic. it becomes better and better

01-16-2008 07:13 PM

Billme
Key Veteran
Location: MS

awesome job...I can't wait to hear how it flys

Bill

01-16-2008 11:04 PM

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

I had to cut the driveshaft about 40mm and drill a new 4mm hole into, but now it fits very well. God bless it wasnt completely hardened steel

01-17-2008 10:08 PM

terje
Senior Heliman
Location: Norway

Kafunkel:
What kind of rotor head have you used? It's very good looking...

01-18-2008 01:23 PM

HOMEPAGE

IYKIST
Veteran
Location: London united kingdom

Good job, that is a Hanseleit rotor head if i am right.

01-18-2008 05:28 PM

HOMEPAGE

Flying Tivo
Veteran
Location: Monterrey,NL,Mexico

now that you have al the CAD stuff

Why stick to the G23RC engine. You could try the new 20cc and you can save a lot of weight and gain performance.

Felipe

01-18-2008 06:44 PM

HOMEPAGE

DKTek
Senior Heliman
Location: Melbourne, FL-USA

The G23 can also be a 29cc plus mod. That little 20cc can't compete. Even the G23 can be modded to put out more power and run smoother.

That'd be my guess...

The beatings will continue until morale improves...

01-19-2008 04:58 AM

Flying Tivo
Veteran
Location: Monterrey,NL,Mexico

Do you really know how much your fan/wheel weights????
Dont think so.

Its all in the power/weight ratio. Do the math, if you like.
If you shrink it down it will be a 90 ship gasser.

Felipe

01-19-2008 05:06 AM

HOMEPAGE

FCM
Elite Veteran
Location: Back in Blighty!

That little Zenoah is well down on power compared to the G230RC engine in stock form. You will still have to add flywheel, clutch and fan all in a stack just like the 231 PUH engine - no thanks

Paul.

01-19-2008 05:58 AM

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

Here are some impressions of my first testflight. There are no problems, no vibrations at all.

01-19-2008 01:38 PM

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

Today arrived the new parts i made.

01-23-2008 05:19 PM

Mark Spies
Senior Heliman
Location: LaPlace, La and Houston ,TX

Better put longer bolts in your tail boom supports,the pic you have shows no thread coming out from the bolts and thats a lock nut?? Just MHO other than that Looks super... Mark

Starwood Scale Models

01-25-2008 12:20 AM

hootowl
Elite Veteran
Location: Garnet Valley, Pa.

Looks great.

Keep a close eye on your cyclic servo brackets. These gassers have a way of inducing stress cracks in thin aluminum brackets.

Only CHANGE you'll get is what's left in your pocket.

01-25-2008 02:54 AM

HOMEPAGE

Kafunkel
Heliman
Location: Germany, Friedrichsdorf

Hi Mark,

ur right, i just used this bolts to take the picture, i allready changed this ones.

01-25-2008 07:22 AM

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Vario Sky Fox - Benzin - Evolution - Xtreme > My newest project

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