Piper Malibu PA-46-310P Pilot Operating Handbook page 147

PIPER AIRCRAFT CORPORATION
PA-46-310P, MALIBU
SECTION 5
PERFORMANCE
Calculate the cruise fuel consumption for the cruise power
setting from the information provided by the Teledyne Continental
Operator's Manual and the Cruise Performance Table (refer to
page 5-22).
The cruise time is found by dividing the cruise distance by the
cruise speed and the cruise fuel is found by multiplying the cruise
fuel consumption by the cruise time.
The cruise calculations established for the cruise segment of
the flight planning example are as follows:
(I) Total Distance
(2) Cruise Distance
(e)( I) minus (c)(4) minus
(d)(2), (400 nautical
miles minus 38 nautical
miles minus 53 nautical
miles)
(3) Cruise Power
(50° lean of peak T.I.T.)
(4) Cruise Speed
(5) Cruise Fuel Consumption
(6) Cruise Time
(e)(2) divided by (e)(4),
309 nautical miles divided
by 206 KTS
(7) Cruise Fuel
(e)(5) multiplied by (e)(6),
( 15.5 GPH multiplied
by 1.5 hrs.)
(0
Total Flight Time
400 nautical miles
309 nautical miles
75% rated power
206 KTS TAS*
15.5 GPH*
1.5 hrs. (90 min.)
23.2 gal.
The total flight time is determined by adding the time to climb,
the time to descend and the cruise time. Remember! The time
values taken from the climb and descent graphs are in minutes and
must be converted to hours before adding them to the cruise time.
*reference Figure 5-21 and Page 5-22
ISSUED: JANUARY 11, 1984
REPORT: VB-1200
5-7