Difference between the Tail Pistol No. 30 Mk II and No. 30 Mk III

[Antoon]

What is the exact modification between the Tail Pistol No. 30 Mk II and No. 30 Mk III.

It seems that with the Mk II the main trouble was friction on the striker caused by transmission of torque from the revolving arming nut. Therefore prevented its movement on impact, even if complete armed.
The modification was removal the plain portion of the striker spindle. The modified Pistols becoming the No. 30 Mk III. New manufactured became the No. 30 Mk IV

What was removed exactly of the striker spindle?


Greetings - Antoon

 

[Antoon]

I think I found the answer myself.

The red part in the picture was removed. Can someone confirm this.

The same was done with the No. 28.

Greetings - Antoon

 

[MINENAZ16]

No 30 MkIII pistol differs from the No 30 MkII in having a revised method of securing the creep spring and the ability to remove the striker for cleaning after exposure to salt water.


another source : http://michaelhiske.de/Allierte/USA/BombsAndFuzes/Section04/2211_T06.HTM

 

[Antoon]

Oeps typo,

I mean the difference between the Mk III and the Mk III*

The Mk III* has also a robust arming fork and revised safety plate.


Greetings

 

[MINENAZ16]

The No 30 Mk.III* Pistol was a No 30 MkIII with a more robust arming fork, a revised safety plate and a plain portion on the striker to reduce friction.

 

[Antoon]

The No 30 Mk.III* Pistol was a No 30 MkIII with a more robust arming fork, a revised safety plate and a plain portion on the striker to reduce friction.

I think there is a mishap in the text in the book you quoted from (British Bomb and Rocket Pistols and Fuzes 1914-2007 ?). See in that book the text at the No 28 pistol. There they mention no plain portion.

If you take a look at the arming spindle of the No. 30 Mk II and Mk III and compare this with that of the No. 30 Mk III* and Mk IV, you wil see at the Mk II and Mk III there is a plane portion at the top of the arming spindle. That is not present at the modified one (Mk III*) and the new produced Mk IV. This is also the difference between the No. 28 Mk II and the No. 28 Mk II* and the new produced manufactured No. 28 Mk III,




Greetings