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On a IVP 90% power climb would be over 40gph.

I don't know why you would use 90% power though. The fuel pump provides extra fuel at 100% and max rpm gives you effectively later timing, which means lower pressures in the cylinders.

LOP cruise at 31" is closer to 18gph

On Oct 7, 2014, at 8:56 AM, Carl Scheid wrote:

A profile for an LIVP that might be used in flight planning software was determined from a spread sheet performance model. The following profile was based on the indicated conditions:

FLIGHT CONDITIONS - TSIO 550 G, LIVP, 3100 LB

CLIMB 90% POWER AT 145 KIAS

CRUISE 22000 ISA FT AT 165 KIAS

DESCEND 1000 FT/MIN AT 165 KIAS

FLIGHT LOG PROFILE

CLIMB 1066 FT/MIN 26.9 GPH 176 KTAS

CRUISE 75% POWER 16.0 GPH 234 KTAS

DESCEND 1000 FT/MIN 9.3 GPH 206 KTAS

Since my LIV has an IO 550 G, I have no way to check the flight log fuel burn and flight time. I am interested in hearing about any LIVP profiles that do an acceptable job of predicting time and fuel burn.