Quote:
Originally Posted by bongodriver
This exctract of pilots notes from NZTyphoons post seems explicit on fuel type.
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I think this is purpose related - boost control cut out in order to increase performance. The boost control cut out as an emergency item has always been available, at least I haven't seen anything indicating Hurricanes did not have the cut out even when 100 octane fuel wasn't around. The March 39 pilot notes say that "it is intended for use should the automatic boost control fail in flight or should it be necessary in an emergency to override the automatic control for an increase of boost". First purpose would be there even if 87 octane fuel was used. I haven't seen earlier pilot notes.