WWII Aircraft tool roll

[cvairwerks]

Lugz: I'll have to go the print and look at the actual dash numbers listed for a -2x kit to see. There were something like 10 versions of the N model and probably another dozen of the Q. There were some weapons changes in there, but most were either engine, prop or auxiliary equipment changes. There were also a couple of structural changes too.

It will probably be tomorrow before I can dive the print and get the info.

 

[Private Lugnutz]

Disregard, cv. I just self corrected my own ignorance. As I explained in earlier posts, it was the preponderance of references to "50 cal" and "wing" in so many of the tools that led me to my MG maintenance conclusion. My question on variants and nose/fuselage mounting was prompted by your mention of harmonizing the guns. But it's the wing guns that are harmonized. The fuselage guns are synchronized. I'm tracking again. EDIT: And going back to the motor pool where I belong!

 

[cvairwerks]

Actually the nose guns would be part of the harmonization. Every gun mount has some ability to be adjusted for point of impact. The nose guns are slightly more complicated on their installation as they also have to be synchronized to minimize having "holy" propellers...

The harmonization is actually setting the entire gun package to fire on a convergence point, somewhere in front of the aircraft. Typically, this would be several hundred feet or yards off the nose. The distance set was dependent on the aircraft itself, what the aircraft was being used for and to an extent, pilot preferences.

 

[MR.X]

Here's a Snap-on ad from 1944 and a zoom on the tool kit they were supplying to Bell for general maintenance on the P-39.

That's good stuff Lugz! too bad the pic isn't a little clearer.

 

[Private Lugnutz]

Thanks. I would've thought those were dead on, but that makes sense. When it finally clicked what you were saying, some cobwebby part of my brain pictured the unusual bore-sighting pattern diagrams. I've given up trying to figure out the armament timeline on the P-39, though. There were a lot of changes in just a few years. But whether this kit was for wing-only or wing and nose guns, I don't know. I'll let someone else do that detailed homework.

 

[cvairwerks]

Deleted...was a partial post that was hung up...

 

[cvairwerks]

One kit for all guns....Probably has all the tools for installation and removal of the cannon too.

 

[daradke]

I knew this was the right place to go for finding out all this wonderful info. Been a longtime lurker, but always been my go to when needing tool info. Thanks to everyone for their contribution! I'm still going thru everything and if I come across anything else, y'all be the first to know!

 

[Private Lugnutz]

One kit for all guns....Probably has all the tools for installation and removal of the cannon too.

You'd think so. I didn't see any reference to 37mm though.

 

[Private Lugnutz]

...too bad the pic isn't a little clearer.

It's an eye strainer for sure.

 

[daradke]

It's an eye strainer for sure.

On the blueprint shows a wrench for a 20mm muzzle brake, but not on the diagram and it's not in the kit.

 

[Provincial]

Wikipedia mentions 20mm cannon replaced the nose cannon on some planes exported to Britain and/or Russia. This would explain why the wrench isn't in the roll, if it was destined for USA use.

 

[Private Lugnutz]

I was looking around for a technical manual today with no luck. I did find a related document that is snippet only view that I have requested to be unlocked. We'll see. In the meantime, just some eye candy excerpts from a few other documents. Pic 2 would be nice to have. There are digital copies available for $15.

 

[ZRX61]

I wasn't correcting you. It was more of a statement of befuddlement hoping you would clarify. But I figured it out. In post #1 pic 5 there is a part "12-479-01, JACK PAD ASSEMBLY WING." I was reading it like nomenclature, backwards, and thinking it was associated with the other wing related tools. I'm tracking now.

No worries, I didn't take it as a correction.