(4) Cruise Speed
88.5 KTS TAS*
(5) Cruise Fuel
4.9 GPH
(6) Cruise Time
(e)(2) divided by (e)(4), (291 miles
divided by 88.5 KTS)
3.29 hrs.
(7) Cruise Fuel
(e)(5) multiplied by (e)(6), (4.9
GHP multiplied by 3.29 hrs.)
16.1 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),
(.05 hrs. plus .04 hrs. plus 3.29 hrs.)
3.38 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),
(.4 gal. plus .15 gal. plus 16.1 gal.)
16.65 gal.
(16.65 gal. multiplied by 6 lb/gal.)
99.9 lbs.
*reference Figure 5-21
PIPER AIRCRAFT CORPORATION
SECTION 5
PA-38-112, TOMAHAWK
PERFORMANCE
ISSUED: JANUARY 20, 1978
REPORT: 2126
REVISED: MAY 10, 1982
5-7
(4) Cruise Speed
88.5 KTS TAS*
(5) Cruise Fuel
4.9 GPH
(6) Cruise Time
(e)(2) divided by (e)(4), (291 miles
divided by 88.5 KTS)
3.29 hrs.
(7) Cruise Fuel
(e)(5) multiplied by (e)(6), (4.9
GHP multiplied by 3.29 hrs.)
16.1 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),
(.05 hrs. plus .04 hrs. plus 3.29 hrs.)
3.38 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),
(.4 gal. plus .15 gal. plus 16.1 gal.)
16.65 gal.
(16.65 gal. multiplied by 6 lb/gal.)
99.9 lbs.
*reference Figure 5-21
PIPER AIRCRAFT CORPORATION
SECTION 5
PA-38-112, TOMAHAWK
PERFORMANCE
ISSUED: JANUARY 20, 1978
REPORT: 2126
REVISED: MAY 10, 1982
5-7