AN 01-25CN-2             PARAGRAPH 7
  (c) WINDSHIELD-The windshield is made of ¼-inch laminated plate glass, with the exception of a central panel. This central panel consists of 1½-inch thick bullet-resistant glass. The frame is assembled to the fuselage by flush-head screws in fiber nuts and may be attached or removed as one unit.

  (d) COCKPIT ENCLOSURE.-The cockpit enclosure is made of eight pieces of "Plexiglas" supported in an aluminum alloy frame. The frame is mounted on four ball-bearing roller assemblies which travel on tracks on each side of the fuselage. It may be moved to the desired forward and aft positions by a hand crank located on the forward right side of the cockpit. (See detail 'B", Fig. 107.) This crank may be disengaged in case of an emergency, by putting the lever "G" to a horizontal position as shown in detail "B." The canopy can then be moved forward or aft by hand. The emergency canopy release "D" is located on the forward part of the upper beam in the canopy. (See detail "D.") The complete canopy may be released from the roller assemblies in flight by pulling the release tab "D" with a force of at least forty pounds, which actuates the canopy release mechanism, breaking the lock wires as shown in detail "A!' It is imperative that these lock wires be installed, and the canopy release mechanism should be inspected before each flight to insure operation of the canopy. If the lock wires are not installed, the canopy may be torn off by the slip-stream, causing serious damage to the airplane. In the event of a turn-over on the ground, pull the handle "A7 (detail "C") inward and aft to allow the escape panel to swing open. This emergency exit may also be opened from the outside by means of a handle located on the lower left enclosure frame.

(2) MISCELLANEOUS EQUIPMENT.

  (a) MAP CASE-A map case is installed on the right side of the cockpit adjacent to the pilot's seat.

  (b) SPECIAL TOOLS AND EQUIPMENT. -These are carried in a pocket on the right side of the duffle bag.

  (c) PARKING HARNESS. - The parking harness (drawing No. 87-64-570) is stowed in the parking harness bag (drawing No. 87-88528) located immediately be-low the pilot's headrest.

  (d) REAR VISION MIRROR-A rear visor mirror is mounted in an aluminum alloy fairing bolted to the top of the windshield at the left of the center line. 		        (e) ARMOR PLATE.-There are two installations of armor plate in the fuselage. The first installation is a non-magnetic armor plate at station 2A be. tween the oil tank and the instrument panel. The second installation is at station 5 directly aft of the piiot's seat and headrest.

  (f) STATIC GROUND (drawing No. 87-88. 046.10)-A static ground assembly is fastened to the bottom of the fuselage, on the airplane's center line, forward of the tail wheel door, by two screws. The static ground assembly is made up of a .100-inch steel wire and 13 inches of .031-inch closely-wound steel spring. The spring is slipped over the wire for a distance of one inch and is fastened to the wire with a solder joint. The static ground assembly is set at a 60° ± 5° angle to the under surface of the fuselage.

  (g) FIRST AID KIT-Provision is made for the installation of a first aid kit in a canvas container installed on the inboard surface of the map case in the cockpit.

(3) REMOVAL AND DISASSEMBLY.

  (a) COCKPIT ENCLOSURE.-The cockpit enclosure may be removed by pulling the emergency release, lifting the canopy off the airplane, and leaving the roller assemblies on the track. (See Fig. 107.)

  (b) REAR VISION WINDOW.-The rear vision window may be taken out by removing the support straps and metal retaining strip at its forward edge. Slide the Plexiglas sheet forward and out of the frame. Care must be taken in the removal of the "Plexiglas" to prevent marring its soft surface.

(4) CARE OF TRANSPARENT SHEETS.

  (a) Slight surface scratches are easily removed by rubbing the transparent sheet by hand with a soft cloth moistened with a turpentine-chalk mixture.

  (b) The surface may be cleaned with varnoline. This in turn may be removed by applying warm water and wiping lightly with a soft, wet cloth. -Grease and oil may be removed with carbon tetrachloride, alcohols (simple or polyhydric), or ethers. Note that the transparent sheet is soluble in ketones, lower esters, aromatic hydrocarbons, phenols, arydhalides, aliphatic acids, chlorhydrins, acetals, chloroform, ethylene dichloride, propylene dichloride, and tetrachloroethylene.