Re: Leveling the Fuselage

Seifert · Post by **Seifert** » Fri Jan 22, 2010 8:14 pm

'I've been reading up in preparation for the rigging of the major components to the fuselage and am confused. I located the leveling instructions in the UC-61 Erection & Maintenance manuel, and located two leveling pads in the page 30 figure 48 & 49 illistrations but the instructions still don't make sense. It may help to know what a leveling bar for a F24R 46 looks like. Is there a better fuselage leveling description or method?
Thanks
Rich Seifert

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Craig Cantwell · Post by **Craig Cantwell** » Fri Jan 22, 2010 9:50 pm

'Rich; What we use at work is a piece of ground flat tooling bar that will stretch across the leveling lugs. On top of that we set a high precision clinometer to get the readings. For our use though, we have to determine level to something like 5 seconds of angle. You should be able to substitute a good digital level for your needs. An alternative would be to use a good aluminum level and a smaller digital level if you didn't have a long enough digital. Just put the longer level across the lugs and the smaller digital one on top. That would approximate what we do at work.

Craig

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Seifert · Post by **Seifert** » Sat Jan 23, 2010 10:05 am

'Thanks Craig
I located the fuselage leveling lug positions in the illustrations, but can't see anything like a lug at those locations on my fuselage. What do these leveling lugs look like?

----- Original Message -----
From: Craig Cantwell
To: fairchildclub@yahoogroups.com
Sent: Friday, January 22, 2010 8:41 PM
Subject: Re: [fairchildclub] Leveling the Fuselage

Rich; What we use at work is a piece of ground flat tooling bar that will stretch across the leveling lugs. On top of that we set a high precision clinometer to get the readings. For our use though, we have to determine level to something like 5 seconds of angle. You should be able to substitute a good digital level for your needs. An alternative would be to use a good aluminum level and a smaller digital level if you didn't have a long enough digital. Just put the longer level across the lugs and the smaller digital one on top. That would approximate what we do at work.

Craig

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Craig Cantwell · Post by **Craig Cantwell** » Sat Jan 23, 2010 3:09 pm

'Rich: On my AT-21, they are just some 1"x 2" tabs that are welded into position in the forward bomb bay for leveling in the roll axis. I think pitch uses one of the longerons that is part of the flight deck floor. I can't get to my SRM right now to be sure on the pitch. I just poped out into the garage and looked at the forward fuselage and could id the roll tabs without any problem.

Craig

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