Piper PA-28-236 DAKOTA, Pilot Operating Handbook

Page: 108 / 367

ISSUED: JUNE 1, 1978 REPORT: VB-910
5-7
PIPER AIRCRAFT CORPORATION SECTION 5
PA-28-236, DAKOTA PERFORMANCE
REVISED: NOVEMBER 22, 1982
(3) Cruise Power (Mixture leaned
to 50° F rich of peak EGT) 65% rated power
(4) Cruise Speed 134 KTS TAS*
(5) Cruise Fuel Consumption 11.8 GPH*
(6) Cruise Time
(e)(2) divided by (e)(4), (592 naut.
miles divided by 134 KTS) 4.4 hrs.
(7) Cruise Fuel
(e)(S) multiplied by (e)(6), (11.8
GPH multiplied by 4.5 hrs.) 52.1 gal.
(f) 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)(l) plus (e)(6),
(.14 hrs. plus .1 hrs. plus 4.4 hrs.) 4.64 hrs.
(g) Total Fuel Required
Determine the total fuel required by adding the fuel to climb,
the fuel to descend and the cruise fuel. When the total fuel
(in gallons) is determined, multiply this value by 6 lb./ 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),
(2.5 gal. plus 1.5 gal. plus 52.1 gal.) 56.1 gal.
(56.1 gal. multiplied by 6 lb./ gal.) 337 lbs.
*reference Figure 5-21