Piper ARCHER II - Page 95

PIPER AIRCRAFT CORPORATION SECTION 5
PA-28-181, ARCHER II PERFORMANCE
(f)
(g)
(3) Cruise Power 65% rated power
(4) Cruise Speed 110 KTS TAS*
(5) Cruise Fuel Consumption 7.6 GPH-
(6) Cruise Time
(e)(2) divided by (e)(4), (282 naut.
miles divided by 110 KTS) 2.56 hrs.
(7) Cruise Fuel
(e)(5) multiplied by (e)(6), (7.6
GPH multiplied by 2.56 hrs.) 19.5 gal.
Total Flight Time
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.
The following flight time is required for the flight planning
example.
(1) Total Flight Time
(c)(3) plus (d)(1) plus (€)(6),
(.14 hrs. plus .14 hrs. plus 2.56 hrs.) 2.84 hrs.
Total Fuel Required
Determine the total fuel required by adding the fuel to ciimb,
the fuel to descend and the cruise fuel. When the total fuel (in
gallons) is determined, multiply this value by 61b./ gal. to determine
the total fuel weight used for the flight.
The total fuel calculations for the example flight plan are
shown below.
(1) Total Fuel Required
(c)(5) plus (d)(3) plus (e){7),
(1 gal. plus | gal. plus 19.5 gal.) 21.5 gal.
(21.5 gal. multiplied by 6 1b./ gal.) 129 lbs.
*reference Figure 5-23
ISSUED: JULY 2, 1979 REPORT: VB-1120
REVISED: NOVEMBER 15, 1982 5-7