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PIPER AIRCRAFT CORPORATION
PA-18R-20I, ARROW
SECTION 7
SECTION 7
OEseR/OPERA TlON
DESCRIPTION AND OPERATION
OF THE AIRPLANE AND ITS SYTEMS
7.1 THE AIRPLANE
The PA-28R-llJ, Arrow is a single engine, retractable landing gear, all
metal airplane. It has seating for up to four occupants, a 200 pound luggage
compartment, and a 200 HP engine.
7.3 AIRFRAME
With the exception of the steel engine mount, the landing gear,
miscellaneous steel parts, the cowling, and the lightweight plastic extremities
(tips of wings, tail fin, rudder and stabilator), the basic airframe is of
aluminum aHoy. Aerobatics are prohibited in this airplane since the
structure is not designed for aerobatic loads.
The fuselage is a semi-monocoque structure. There is a front door on the
right side. A cargo door is installed aft of the rear seat.
The wing is of a conventional design semi-tapered and employs a
laminar flow NACA
652-415 airfoil section. The main spar is located at
approximately 40% of the chord aft of the leading edge. The wings are
attached to the fuselage by the insertion of the butt ends of the spar into a
spar box carry-through, which is an integral part of the fuselage structure.
The bolting of the spar ends into the spar box carry-th rough structure, which
is located under the aft seats, provides in effect a continuous main spar. The
wings are also attached fore and aft of the main spar by an auxiliary front
spar and a rear spar. The rear spar, in addition to taking torque and drag
loads, provides a mount for flaps and ailerons. The four-position wing flaps
are mechanically controlled by a handle located between the front seats.
When fully retracted, the right flap locks into place to provide a step for
cabin entry. Each wing contains one fuel tank.
ISSUED: SEPTEMBER 15,1988
REPORT: VB-1365
7-1
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