Hello.

I'm deciding what gun to mount in an E100 I'm building. Just a question.

How long are each of these guns, muzzle to breach (I know 2 where not made, but I'm guessing someone should be able to estimate the lengths for me). Also what is the recoil length as well?

12,8 cm KwK 44 L/51
15 cm KwK 44 L/38
17 cm KwK 44

Thank you.

Use this formula for your gun barrel lengths:: For a 12,8 cm KwK 44 L/51 do this 12.8 cm X 51calabers = 652.8 cm Convert the 652.8cm to mm += 6528mm. Divide that by 25.4 = 257.00787mm then divide that by 12 and you get 21.417322 feet then convert that to inches which is all most 7 9/32”..
As for recoil gos... look at the 12.8cm Selbstfahrlafette L/61 gun [VK3001[H] Pz SflV it usses three recoil cylenders, The Jagdtiger uses two recoil cylinders for its 12.6cm PaK44 L/55.. From the rear edge of the 12.8cm L/61 Breach their is only an inch and the rean bulkhead.. In thirtyfifth scale that is three foot... The more recoil cylender or buffers you use the less recoil you have..
I hope this helps

Thank you that helps out, I'm still in the planning stages of what I want to do.

The L/xx term in each gun designation is the barrel length in calibers. Each "caliber" is one bore diameter of that weapon. You have to be a bit careful with this as American & European weapons are measured slightly different ly, one method defines the length of the actual bore only and the other includes the length of the chamber back to the face of the breech block (can't remember which uses which). For yuor purposes, it probably doesn't matter too much.


Regarding recoil length, if you could see the length of the barrel slide of an artillery version of the same gun, you'd get a fair indication of the recoil distance, but make sure that the arty version can fire the same ammo as "hotter" AT ammo will produce a much higher kick and may result in more/larger recoil cylinders or more recoil distance for the tank version as opposed to an arty version of the same tube.

HTH

Paul