The empennage is a T-tail configuration with a fixed horizontal
stabilizer mounted atop the vertical fin.
7.5 ENGINE AND PROPELLER
The PA-38-112 is powered by a Lycoming O-235-L2C or O-235-L2A
four cylinder, direct drive, horizontally opposed engine rated at 112
horsepower at 2600 RPM. It is equipped with a starter, a 60 amp 14 volt
alternator, a shielded ignition, two magnetos, vacuum pump drive, a fuel
pump, and an induction air filter.
The engine cowlings are cantilever structures attached at the firewall
and split horizontally. The metal upper cowling contains two top-hinged
access panels, one on either side of the engine. The fiberglass lower cowling
is a one piece structure with integral air scoops. Both cowlings can be
completely removed with the propeller in place.
The engine mount is constructed of tubular steel and is rigidly mounted
to the firewall. The engine is attached with dynafocal insulators to reduce
vibration. The engine mount includes a provision for the attachment of the
nose gear.
Cooling of the engine and accessories is by down draft air flow. Air
enters through openings on each side of the propeller and is carried through
a pressure baffle system around the engine and to a fixed exit in the lower
cowling. Air for cockpit and carburetor heat also enters through the nose
cowling to be ducted to the heater shroud on the muffler.
An oil cooler installation is available as optional equipment. The cooler
is mounted to the left rear engine baffle and incorporates a low temperature
bypass system. A winterization plate is provided to restrict air during winter
operation. (See Winterization in Handling and Servicing Section.)
Carburetor induction air enters a chin scoop intake in the lower cowling
and flows directly through a filter and into the carburetor air box. The air
box incorporates a positive shut-off carburetor heat intake so that when
carburetor heat is selected, induction air is drawn through a hose from the
muffler shroud.
The stainless steel exhaust system incorporates dual mufflers with
heater shrouds to supply heated air for the cabin, the defroster system and
the carburetor heat system. Exhaust gases are discharged through twin
stacks protruding through the lower right of the bottom engine cowling.
SECTION 7 PIPER AIRCRAFT CORPORATION
DESCRIPTION & OPERATION PA-38-112, TOMAHAWK
REPORT: 2126 ISSUED: JANUARY 20, 1978
7-2 REVISED: JANUARY 15, 1981
The empennage is a T-tail configuration with a fixed horizontal
stabilizer mounted atop the vertical fin.
7.5 ENGINE AND PROPELLER
The PA-38-112 is powered by a Lycoming O-235-L2C or O-235-L2A
four cylinder, direct drive, horizontally opposed engine rated at 112
horsepower at 2600 RPM. It is equipped with a starter, a 60 amp 14 volt
alternator, a shielded ignition, two magnetos, vacuum pump drive, a fuel
pump, and an induction air filter.
The engine cowlings are cantilever structures attached at the firewall
and split horizontally. The metal upper cowling contains two top-hinged
access panels, one on either side of the engine. The fiberglass lower cowling
is a one piece structure with integral air scoops. Both cowlings can be
completely removed with the propeller in place.
The engine mount is constructed of tubular steel and is rigidly mounted
to the firewall. The engine is attached with dynafocal insulators to reduce
vibration. The engine mount includes a provision for the attachment of the
nose gear.
Cooling of the engine and accessories is by down draft air flow. Air
enters through openings on each side of the propeller and is carried through
a pressure baffle system around the engine and to a fixed exit in the lower
cowling. Air for cockpit and carburetor heat also enters through the nose
cowling to be ducted to the heater shroud on the muffler.
An oil cooler installation is available as optional equipment. The cooler
is mounted to the left rear engine baffle and incorporates a low temperature
bypass system. A winterization plate is provided to restrict air during winter
operation. (See Winterization in Handling and Servicing Section.)
Carburetor induction air enters a chin scoop intake in the lower cowling
and flows directly through a filter and into the carburetor air box. The air
box incorporates a positive shut-off carburetor heat intake so that when
carburetor heat is selected, induction air is drawn through a hose from the
muffler shroud.
The stainless steel exhaust system incorporates dual mufflers with
heater shrouds to supply heated air for the cabin, the defroster system and
the carburetor heat system. Exhaust gases are discharged through twin
stacks protruding through the lower right of the bottom engine cowling.
SECTION 7 PIPER AIRCRAFT CORPORATION
DESCRIPTION & OPERATION PA-38-112, TOMAHAWK
REPORT: 2126 ISSUED: JANUARY 20, 1978
7-2 REVISED: JANUARY 15, 1981
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