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-   -   cg point on the BOBCAT composite (https://www.rcuniverse.com/forum/rc-jets-120/2775157-cg-point-bobcat-composite.html)

ravikoth 03-17-2005 11:06 AM

cg point on the BOBCAT composite
 
Hi,

I just manged to buya slightly used BOBCAT composite jet. she seems to fly just fine. however i think the balance is off a tad. since i do not have the original instructions could somebody help with the exact cg point.

The distance from the intersection of the wings leading edge and the fuselage. I would really appreciate any help in this regard. thanks.

Ravi

rjpilot 03-17-2005 07:55 PM

RE: cg point on the BOBCAT composite
 
Hi Ravi;
I just looked at the drawings for my composite Bobcat, and they show the C/G at 8.2 inches behind the wing leading edge, measured on the fuse side of the booms.
Hope this helps.
Ron Jahnig

John Redman 03-17-2005 09:46 PM

RE: cg point on the BOBCAT composite
 
The standard point for the CG on the Bobcat, Bobcat XL, and the new Composite Bobcat are all the same. You balance the aircraft with the gear down, UAT full, and at the drilled hole in the bottom of the booms. Aircraft should sit just slightly nose down. You can fine tune the CG to your personal taste after flying.

Ragz 03-18-2005 05:37 AM

RE: cg point on the BOBCAT composite
 
Hi Ravi, Where in India do you fly?

sirrom 03-18-2005 08:07 AM

RE: cg point on the BOBCAT composite
 

ORIGINAL: John Redman

The standard point for the CG on the Bobcat, Bobcat XL, and the new Composite Bobcat are all the same. You balance the aircraft with the gear down, UAT full, and at the drilled hole in the bottom of the booms. Aircraft should sit just slightly nose down. You can fine tune the CG to your personal taste after flying.
John,
I was just balancing a Bobcat Standard that I just finished building and something occured to me when I was doing the balancing. The instructions say to balance the airplane with only the UAT full but the main fuel tanks are ahead of the CG. I have never flown any of my planes to empty tanks so once you fill the tanks wouldn't that make the plane incredibly nose heavy and also nose heavy on landings? A little nose heavy is one thing but if you land with 8 oz of fuel in each main tank that would make you 16oz nose heavy wouldn't it?

Patrick.


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