The cabin floor structure consists of aluminum floor beams, channels,
panels and other structural components. The floor structure supports the
instrument panel and provides for mounting the tail rotor directional control
pedals.
The seat structure is an assembly of riveted aluminum beams, frames,
bulkheads, supports and other structural components. The support structure
for the crew and passenger seats is a raised horizontal platform across the
width of the cabin, with an upright vertical bulkhead at the rear of the
horizontal seat platform. The horizontal platform provides mounting
facilities and support for the seats and collective and cyclic flight controls.
The vertical bulkhead forms the rear of the cabin and mounts the upright
portions of the seats. At the center rear of the vertical bulkhead, the main
rotor mast is secured to the upper structural member of the bulkhead;
additionally, the mast is rigidly attached to the center frame by three
structural members.
The lower forward section of the seat structure is riveted to the floor
structure. The two door frames are riveted to each side of the structural unit
formed by the seat and floor structures.
A lower forward fairing is attached to the forward edge of the floor structure
and extends downward and rearward to the forward crossbeam of the
landing gear. It provides for streamlining below the cabin and supports the
engine air induction system.
A tailboom assembly extends rearward from its attachment to the center
frame section. It is a monocoque structure of aluminum and houses the tail
rotor drive shaft and tail rotor control rod. At the aft end, it supports the tail
rotor gearbox and tail rotor, in addition to the horizontal and vertical
stabilizers.
The landing gear is the skid type and is nonretractable. Fore and aft
crossbeams attach to the underside of the center frame section and provide
for attachment of struts and oleo-type, shock-absorbing dampers. Right and
left stabilizer assemblies connect the outboard ends of the crossbeams and
provide stepping areas for entry to each side of the cabin and for servicing
and inspecting the helicopter. Skid tubes attached to contoured fittings at the
lower ends of the struts provide attachment points for installation of ground
handling wheels.
The powerplant is the Textron Lycoming Model HO-360-C1A (Original
factory installation in S/N 0001-0138) four-cylinder, horizontally opposed,
air-cooled, carbureted engine with a primer system. The HIO-360-G1A
(Original factory installation in S/N 0139 & Subs.) is an injected engine of
the same type. The engine is rated at 180 hp at 2700 rpm for both takeoff and
General
Pilot's Flight Manual
1-6 Reissued: 16 Jan 2019
SCHWEIZER
Model 269C-1 Helicopter
CSP book 2..indd 32 8/4/19 12:53 PM
To Next Page
Loading...
