Home › Forums › Historic Aviation › Teddington thermostats or rheostats circa 1940 – were they in aircraft? › Reply To: Teddington thermostats or rheostats circa 1940 – were they in aircraft?
I think they were used for electrically heated flying suits.
Such devices were developed in the 1930’s as the new aircraft of the era were able to operate at ever increasing altitudes and crew comfort became an issue.
Anon.
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