apexlined Posted May 9, 2011 Share Posted May 9, 2011 Can someone give me definition of "engine on speed"?is it any reference for this definition? Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted May 9, 2011 Share Posted May 9, 2011 Torq, rpm, TIT, fuel flow stabilized at 72% ............ Quote Link to comment Share on other sites More sharing options...
NATOPS1 Posted May 9, 2011 Share Posted May 9, 2011 Sounds like the old Hyd pressure limits.... "full system pressure by ON SPEED" Is this the question? If so: There is a LSGI limitation which is not "on speed" (minimum of 2550) Then there is the full system pressure 29-3200 by "on speed" (HSGI within limits) (but the limit does not apply if the RPM is less than 100%)(in our books) Quote Link to comment Share on other sites More sharing options...
pjvr99 Posted May 10, 2011 Share Posted May 10, 2011 2J-T56-56 SWP 058 03 gives a table for starting times vs air temp. These times are commonly referred to as "on-speed", i.e. the time taken from starter button pressed, until RPM is stabilized at LSGI Quote Link to comment Share on other sites More sharing options...
Steve1300 Posted May 11, 2011 Share Posted May 11, 2011 Sometimes the conflict in terminology causes problems. Quote Link to comment Share on other sites More sharing options...
victorp1 Posted May 11, 2011 Share Posted May 11, 2011 If this is about hydraulic pressure and engine speeds, in the Hercules Service Information Letter No. 18, dated 1 NOV 77, there is an artical which addresses "Acceptable Hydraulic Pressure". The values presented in the charts are based on a New York Air Brake but they say they are representive for the Vickers, Abex and all other engine driven hydraulic pumps for the Hercules. The utility system is the only one which drops to 2,550 PSI with only one engine at LSGI and the elevator control column against the forward stop. This would put the utility system to a possible leakage/by-pass rate of 4.3 GPM. If the question is only about the engine being on speed then "normally" we start in LSGI and when it stables there it is "on speed". But if the LSGI system is unservicable then "on speed" would be at normal speed ground idle. Quote Link to comment Share on other sites More sharing options...
tusker Posted May 11, 2011 Share Posted May 11, 2011 Well!!.........I support the comment of PJVR99................Réj...the John Boy Quote Link to comment Share on other sites More sharing options...
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