3cm Flak 103/38

[Cobrahistorian]

Some shots of the mount as it is right now. It will be going into our restoration shop as soon as we finish the M1 57mm AT gun and M1 target drone launching cradle. Overall it is in good shape, with minor corrosion and some damage on the sight mounting arm. I'm hoping to free up the workings so we can make it traverse and elevate again.

Also of note, our Flak 38 and our Flakvierling will be returning to the museum the first weekend in August.

[jopaerya]

Hello

Does somebody know if the 3 cm M.K. 103 gun was the same as the 3 cm Flak 103/38 ??

Regards Jos

[ain92]

Hello

Does somebody know if the 3 cm M.K. 103 gun was the same as the 3 cm Flak 103/38 ??

Regards Jos

Hello all.
Look to the first post:

According to Ian Hogg: "This was a hastily arranged marriage between the 3 cm MK 103, a Rheinmetall -Borsig design of aircraft cannon, and a modified 2 cm Flak 38 mounting.

[Cobrahistorian]

It is the same weapon, however there are a few additions in the ground mounted version, most notably the modified muzzle brake and barrel support.

[Cobrahistorian]

We have begun the Jaboschreck's restoration. After a week of work, we have the elevation mechanism working again, the gun separated from the trailer, the bearings cleaned up on the elevation ring and the traverse mechanism disassembled. Things are going very smoothly and I anticipate the traverse mechanism being reinstalled by Wednesday of next week.

Once we get both elevation rings cleaned up and reinstalled, it will go to the paint shop to get sandblasted. It will then come back to us for paint, so it will be in accurate colors. Once it has been repainted, we will re-mount the gun, which is in fantastic condition and arrived back here from the National Air & Space Museum a few weeks ago.

I'll post pics in a bit.

[Cobrahistorian]

Trailer and mount separated



Corrosion on the elevation gun mounting ring



Gun mounting ring with cleaned up bearing



Trigger mechanism



Mount



Traverse gears



Elevation gears



Seat



Landing leg extended

[Cobrahistorian]

Hey all,

We re-mounted the gun today. Mechanically, she's restored. Now we have to work on the surface corrosion and get her blasted and painted. Thankfully the whole process has gone very smoothly. Here's today's progress pics:

[jopaerya]

Great work Jon

Regards Jos

[wimve]

Nice job, well done.

Looks as if you have a nice job/work (?) too.
Is this a full time job ?

[ErwinZ]

Great job! Keep posting please.

[Grzesio]

By the way - what is the purpose of the rod connecting the muzzle brake and the receiver?

[Cobrahistorian]

Wim - Yes, it is a full time job. I'm the Director of the US Army Air Defense Artillery Museum.

Grzesio - that question comes up a lot and there's been a lot of speculation on it. The reality is, it is simply to hold the new muzzle brake on the gun. It pins to the barrel right in front of the receiver. People have thought it was a gas tube or a barrel support, but really it's just part of the muzzle brake!

Thanks guys! I'll have more to post in about a week and a half!

Jon

[dirk Peeters]

a great job
sorry if i spoil this with my pictures but maybe they are usefull here
We found a trailer in Frace (it is still there)

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are these details usefull?

[dirk Peeters]

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Dirk

[Cobrahistorian]

Thanks for the pics Dirk! That is a standard Sd.ah 51 trailer for the Flak 38. The Flak 103/38 trailers didn't have fenders because the ammo can would be in the way. The tires look to be in pretty good shape there. That trailer looks pretty restorable!

Jon