Originally Posted by
p1fel
Milking the HP cock was needed after trimming the fuel trimmers back to zero. A normal start, OAT less than 15c fuel trimmers set 100% prior to start. OAT above 15c fuel trimmers set to 50% prior to start. With either setting, as soon as light up occured the EGT would rise rapidly meaning in practise the first action was to trim back to zero, with EGT tending to continue to rise rapidly one had to ease back the fuel HP cock to prevent exceeding EGT start limit.
p.s. It is all a distant nightmare... I mean memory E.O.E.
p1fel
Hmmm....Its been quite a while but I thought it was 85% for start below 15 degrees. Maybe that was takeoff. Or was it 85% due to an NTO fron Hawker. Can't remember anymore. Only saw the HP cock used once to trim.
Seem to remember something about an 1830 mod. on the Dart. What was that?
Anyways....back to youtube for more.