KR> weight and balance standard KR2 tri gear

2008-10-12 Thread jeffyor...@qx.net



OK, I have lost my paperwork on figuring the weight and balance for my standard 
KR2 tri gear. What paperwork I can find, I can not figure out my own notes and 
its important enough that I do not want to be guessing. With all this CG talk 
lately and the fact that I have made a few changes over the last few months.

I re weighed my plane but i can not remember what my moment is or how to figure 
the WB and CG. Everything I find seems to be for figuring it on a tail drag KR.

What I have is 252 lbs on each main and 180 on the nose, no fuel but 3 qts of 
oil in my Vw2180.

Can anybody out there help out a suddenly brain dead?

Jeff York
Lexington, KY.


KR> weight and balance standard KR2 tri gear

2008-10-12 Thread D F Lively
Jeff:

I do not think much would change as far as the CG range is concerned as it must 
still fall within the range appropriate for your airfoil for that will not have 
changed.  The stall speed should not have changed either beyond changes 
dictated by gross weight unless the wing has been changed.  Your plane should 
still
be the same unless your changes have moved it outside the CG envelope.

Don
  

"jeffyor...@qx.net" wrote:

> OK, I have lost my paperwork on figuring the weight and balance for my 
> standard KR2 tri gear. What paperwork I can find, I can not figure out my own 
> notes and its important enough that I do not want to be guessing. With all 
> this CG talk lately and the fact that I have made a few changes over the last 
> few months.
>
> I re weighed my plane but i can not remember what my moment is or how to 
> figure the WB and CG. Everything I find seems to be for figuring it on a tail 
> drag KR.
>
> What I have is 252 lbs on each main and 180 on the nose, no fuel but 3 qts of 
> oil in my Vw2180.
>
> Can anybody out there help out a suddenly brain dead?
>
> Jeff York
> Lexington, KY.
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html


KR> weight and balance standard KR2 tri gear

2008-10-12 Thread M & C
Jeff, that's easy you need a datum line and dist from datum line to front 
axle also dist from datum to  main axles. datum can be anywhere you choose. 
I would suggest you put it 60 inches in frount of front axle. Thus keeping 
all moments + and all dimentions in inches. Multiply dist fromp datum to 
each axle times weights. "example 60 inches times 180 lbs (front axle) gives 
you a moment of 10,800 pound inches. Now do the mains, add all moments and 
divide by total weight of aircraft to get cg location in inches from the 
established datum. Post your info and the net can check your calcs.

Mike Turner
Jackson Missouri

- Original Message - 
From: <jeffyor...@qx.net>
To: <kr...@mylist.net>
Sent: Sunday, April 16, 2006 8:47 PM
Subject: RE : KR> weight and balance standard KR2 tri gear


>
>
>
> OK, I have lost my paperwork on figuring the weight and balance for my 
> standard KR2 tri gear. What paperwork I can find, I can not figure out my 
> own notes and its important enough that I do not want to be guessing. With 
> all this CG talk lately and the fact that I have made a few changes over 
> the last few months.
>
> I re weighed my plane but i can not remember what my moment is or how to 
> figure the WB and CG. Everything I find seems to be for figuring it on a 
> tail drag KR.
>
> What I have is 252 lbs on each main and 180 on the nose, no fuel but 3 qts 
> of oil in my Vw2180.
>
> Can anybody out there help out a suddenly brain dead?
>
> Jeff York
> Lexington, KY.
> ___
> Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp
> to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net
> please see other KRnet info at http://www.krnet.org/info.html