A Sensenich 72CK-0-56 fixed pitch, two-bladed aluminum alloy
propeller with a metal spinner is installed as standard equipment. The
propeller has a 72 inch diameter with a 56 inch pitch which is determined at
75%, of the diameter.
The pilot should read and follow the procedures recommended in the
Lycoming Operator’s Manual for this engine in order to obtain maximum
engine efficiency and time between overhauls.
7.7 LANDING GEAR AND BRAKES
The fixed gear PA-38-112 is equipped with Cleveland 5.00 x 5 or
optional Cleveland 6.00 x 6* wheels on all three gears (Figure 7-1). Cleveland
single disc hydraulic brake assemblies are installed on the main gear. All
three wheels carry 5.00 x 5 or optional 6.00 x 6* four ply tube type tires.
The nose gear strut is of the air-oil type with a normal static load
extension of 3 inches. A tow bar fitting is incorporated into the strut. The
main gear struts are single-leaf steel springs. The springs, axles and fittings
of the main gear are interchangeable.
The nose gear is steerable by use of the rudder pedals through a 60
degree arc, 30 degrees each side of center. The optional toe brakes, if
installed, aid in the execution of tighter turns.
The standard brake system includes a master cylinder and brake fluid
reservoir which is installed on the top left forward face of the firewall. The
parking brake handle/knob is mounted below and near the center of the
instrument panel (Figure 7-5). To set the parking brake, first depress and hold
the toe brake pedals and then pull out on the parking brake handle/knob. To
release the parking brake, first depress and hold the toe brake pedals and then
push in on the parking brake handle/knob.
WARNING
No braking action will occur if handle/knob is
pulled prior to brake application
When the optional dual toe brake system is installed, a toe brake pedal is
included on each rudder pedal. Each toe brake includes a separate brake
cylinder above the pedal. With this installation, the left or the right brake may
be operated separately to aid in steering and turning.
* 6.00 x 6 wheel assemblies are standard on aircraft with serial nos. 38-
81A0001 and up. Optional on earlier aircraft.
PIPER AIRCRAFT CORPORATION
SECTION 7
PA-38-112, TOMAHAWK
DESCRIPTION & OPERATION
ISSUED: JANUARY 20, 1978
REPORT: 2126
REVISED: APRIL 28, 1989
7-3
A Sensenich 72CK-0-56 fixed pitch, two-bladed aluminum alloy
propeller with a metal spinner is installed as standard equipment. The
propeller has a 72 inch diameter with a 56 inch pitch which is determined at
75%, of the diameter.
The pilot should read and follow the procedures recommended in the
Lycoming Operator’s Manual for this engine in order to obtain maximum
engine efficiency and time between overhauls.
7.7 LANDING GEAR AND BRAKES
The fixed gear PA-38-112 is equipped with Cleveland 5.00 x 5 or
optional Cleveland 6.00 x 6* wheels on all three gears (Figure 7-1). Cleveland
single disc hydraulic brake assemblies are installed on the main gear. All
three wheels carry 5.00 x 5 or optional 6.00 x 6* four ply tube type tires.
The nose gear strut is of the air-oil type with a normal static load
extension of 3 inches. A tow bar fitting is incorporated into the strut. The
main gear struts are single-leaf steel springs. The springs, axles and fittings
of the main gear are interchangeable.
The nose gear is steerable by use of the rudder pedals through a 60
degree arc, 30 degrees each side of center. The optional toe brakes, if
installed, aid in the execution of tighter turns.
The standard brake system includes a master cylinder and brake fluid
reservoir which is installed on the top left forward face of the firewall. The
parking brake handle/knob is mounted below and near the center of the
instrument panel (Figure 7-5). To set the parking brake, first depress and hold
the toe brake pedals and then pull out on the parking brake handle/knob. To
release the parking brake, first depress and hold the toe brake pedals and then
push in on the parking brake handle/knob.
WARNING
No braking action will occur if handle/knob is
pulled prior to brake application
When the optional dual toe brake system is installed, a toe brake pedal is
included on each rudder pedal. Each toe brake includes a separate brake
cylinder above the pedal. With this installation, the left or the right brake may
be operated separately to aid in steering and turning.
* 6.00 x 6 wheel assemblies are standard on aircraft with serial nos. 38-
81A0001 and up. Optional on earlier aircraft.
PIPER AIRCRAFT CORPORATION
SECTION 7
PA-38-112, TOMAHAWK
DESCRIPTION & OPERATION
ISSUED: JANUARY 20, 1978
REPORT: 2126
REVISED: APRIL 28, 1989
7-3
