MG151 dimensions IAR81c

SirFrancis

Airman 1st Class
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Feb 10, 2022
Hi people, I've almost completed my little IAR81c. However the kit did not have canons. You have to supply / scratch your own! So I am going to get some hypodermic needle tips, but not sure what gauge to get. Does anyone have info on diameter of MG151 barrel? ok thanks

1674201394033.png
1674201405836.png
 

Wurger

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The diameter sounds correct. :thumbright:

The barrel lenght of the Mg 151/20 was 1,104 m


So ... 1,104m / 72 = 0,0153333m

0,0153333m x 100 =1,53333 cm

what is

15mm
 

SirFrancis

Airman 1st Class
119
39
Feb 10, 2022
The diameter sounds correct. :thumbright:

The barrel lenght of the Mg 151/20 was 1,104 m


So ... 1,104m / 72 = 0,0153333m

0,0153333m x 100 =1,53333 cm

what is

15mm
Yes but some of that will be inside the wing... the length protruding I scaled approx 11.5mm. 12.5mm looks better.
 

Engineman

Airman 1st Class
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Dec 26, 2021
I thought I was too gash and didn't want to post that I scaled the 151/20 barrel as 30mm dia and 80cm from the end of the thick part to the muzzle.
You can probably do better with some scale photo's.

Eng
 

Wurger

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In the pic attached to my post #7 the barrel is protruding almost to the front fastener on the engine cowling ( in the drawings as well ). So using your model , take a ruler and measure the distance from the wing leading edge to the fastener on the model. And you have the dimension. Nothing more to add.

IAR80_81 drawings1a.jpg
 

SirFrancis

Airman 1st Class
119
39
Feb 10, 2022
I thought I was too gash and didn't want to post that I scaled the 151/20 barrel as 30mm dia and 80cm from the end of the thick part to the muzzle.
You can probably do better with some scale photo's.

Eng

In the pic attached to my post #7 the barrel is protruding almost to the front fastener on the engine cowling ( in the drawings as well ). So using your model , take a ruler and measure the distance from the wing leading edge to the fastener on the model. And you have the dimension. Nothing more to add.

View attachment 703193

I scaled off your schematic and came up with 87.4cm = 12.1mm @ 1/72. LOL when I said 12.5 looked better than 11.5 my eye picked out that 1mm difference...lololol... how good is that!
 

SirFrancis

Airman 1st Class
119
39
Feb 10, 2022
PS on the photo i believe there will be some parallax error judging where it is against the fuselage
 

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