Torpedo – Minimum distance travel before armed

[Laurence]

Main rules page 12 – Torpedoes must travel a minimum distance of 15 cm before they are armed. 15 cm corresponds to about 50 yards in real.

Was this the case for MTBs regardless  the nation, is such distance historically confirmed?

Others in the web mention 300-600 yards.

[invisible officer]

100 to  200 m are common in German Navy.  The setting could be changed in most “Zündpistolen” / Fuzes. .     Arming was done in most by the turning of the propeller at the tip. Others, like P 4  or DWK Fuze had a small water wheel in hull.   That had a problem, early ones had not been secured against tube rubbing problems so the turning could start inside. So  P4a got a “Blattfeder” and P4b a magnetic safety device.

Calculating real world ranges from game scales is far from exact.  15 cm was chosen to make playing on a small table more fun.

[Laurence]

…howmany meters were common in Royal Navy, of Vospers, Fairmiles?

[Author]

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