Beech 90 Series

  TTP B1-L3 ATA 55 Beech 90 Series B2-L1 Stabilisers The aircraft empennage is made up of the v e r tical and horizontal stabilizers. Both are const r ucted much the same as the wing panel in the f act th e y both h a v e a for w ard and aft spa r . Each spar is connected with ribs r unning for w ard and aft. The skin of the stabilizers is attached to the ribs to fo r m the sur f ace of the stabilize r . V ertical Stabilizer The   v e r tical   stabilizer   includes   the   dorsal   fin,  v e r tical stabilize r , r udder hinge brac k et, r udde r ,  r udder bell crank hinge brac k et, r udder trim tab  actuato r , r udder trim tab, r udder to r que tube, and  the r udder bellcrank. Horizontal Stabilizer   The horizontal stabilizer is made up of the el e v a tor to r que tube, el ev ator trim tab...

TTP B1-L3 ATA 54 Beech 90 Series B2-L1 Nacelles/ pylons The c o wling encloses each p o w e r plant and acces sories   from   the   fir ew all for w ard. The   c o wling  consists of four assem b lies: the for w ard upper  and l o w er c o wlings and the aft upper   and l o w er  c o wlings. Refer to the Hoisting procedures in the  AMM and CMM. Forwa r d Upper Cowling The upper for w ard engine nacelle panel is const r ucted using three stiffeners, an aft dou b le r , and nacelle skin to pr o vide for strength and shape the nacelle around the engine. This fo r ms a strea m lined f airing across the upper pa r t of the engine to impr o v e aircraft perfo r mance b y reducing drag. The upper for w ard nacelle is attached using a set of alignment studs and a hook and cam assem b l y that secures the upper for w ard...

TTP B1-L3 ATA 53 Beech 90 Series B2-L1 Fuselage   The  King Air  C90A/B/GT/G T i   fuselage  is   of semimonocoque const r uction and is f abricated from fo r mers, frames, b ulkheads, and k eels reinforced b y longerons and stringers. The st r ucture is enclosed b y a skin fo r med from high strength aluminum all o ys.   The fuselage is pressurized to the skin bet w een the   pressure   b ulkheads   at   FS   84.00 and FS 298.00. T o minimize loss of pressurization, all skins, doors, wind o ws, and st r uctural joints are thorough l y sealed. The control ca b les, O/B to r que shafts, and plumbing and wiring connections that pass through pressure w alls are installed with fit- ted seals or plug connectors to minimize leakage.     DYNAMIC VIBR A TION ABSORBERS   C90B aircraft h a v e dynamic vibratio...