Quote:
Originally Posted by James "Jim" Patterson
it also has a big hole behind the data plates if my memory serves me right which at the time i was told it was to accommodate the arctic heater ???? but dunno if thats true.
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That is correct; see attached excerpt from the personnel heater manual. Starting in September 1951, US-built M38's had this hole stamped out in the factory; prior to this, the hole would have to be cut out during installation of the personnel heater.
Owen.