RV12 Fuselage Weight

joedallas · #1 11-20-2018, 02:53 PM

RV12 Fuselage Weight no wings.

Can anyone please tell me the finished weight of a standard RV12 with
the wings off.

I can't put my wings on in my shop and I would like to compare the weight to my highly modified 12 to see how far off my weight and balance predictions are.

Thanks
Joe Dallas

KALEWIS · #2 11-20-2018, 03:35 PM

Just a good estimate....

Ours empty is 763 minus 180 (wings avg about 90lbs each) is 583#

763 is paint, wheelpants, lights, autopilot, interior options, single skyview

Dvalcik · #3 11-20-2018, 07:11 PM

Quote:

Originally Posted by KALEWIS

Just a good estimate....

Ours empty is 763 minus 180 (wings avg about 90lbs each) is 583#

763 is paint, wheelpants, lights, autopilot, interior options, single skyview

Mine needs to be on a diet at 786.00

joedallas · #4 11-21-2018, 06:09 AM

Thanks guys

Do you know the front wheel weight with the wings off.
I have a Jabiru 3300 engine and have made some changes to move the CG back.
We have some good aircraft scales at our EAA Chapter ( http://eaa1298.com/default.htm ).

I will bring the scales home next week and weight it to see if my W&B is in range.

Thanks again
Joe Dallas

Piper J3 · #5 11-21-2018, 08:50 AM

Quote:

Originally Posted by joedallas

I will bring the scales home next week and weight it to see if my W&B is in range.

Aircraft needs to be weighed with wings on to determine COG. Also, datum measurements are taken to leading edge of wing by dropping plumb line.

COG is a rather important consideration for safety-of-flight and should be done correctly with no shortcuts...

joedallas · #6 11-21-2018, 09:33 AM

Jim

I plan to do my final W&B at the airport with the wings on.
If I can get the numbers of what a wings off RV12 wheel weight is then I can determine if my wheel weight is in range.
Also my wings are about-? 15 lbs heavier than the stock wings with my wing tanks.
By comparing the wheel weights with mine I can do a little math and see if I am close to my calculations.
If I am off my more than I calculated, I can make the modifications in my shop before going to the airport.

Thanks
Joe Dallas

Dave12 · #7 11-21-2018, 09:41 AM

Hey Joe, check your pm?s.

Piper J3 · #8 11-21-2018, 09:55 AM

Quote:

Originally Posted by joedallas

Jim

I plan to do my final W&B at the airport with the wings on.
If I can get the numbers of what a wings off RV12 wheel weight is then I can determine if my wheel weight is in range.

If shop is too small, why not push the fuselage out onto the driveway, on a nice day with no wind, and attach wings for exact COG?

Whatever....

joedallas · #9 11-21-2018, 11:14 AM

Jim

My wings are in the shop getting ready to vinyl and there in no driveway by my shop.

If I could get the wheel weights it would save me a lot of time and would be greatly appreciated.

Thanks
Joe Dallas

Charlie12 · #10 11-21-2018, 11:22 AM

I weighed mine wings-off to decide how to secure it on the trailer for transport to the airport. It was 590.2 lb. and CG arm = 77.53 in. aft of datum. That is CG 16.57 in. fwd of main gear, 47.33 in. aft of nose gear. Weight on nose gear was 153 lb. Wing-on weight was 754.5, arm = 81.90. So each wing weighs 82.2 lb.