Fig. I  Fig. XX  Fig. III  Fig. IV  Fig. V  Fig. VI  Fig. VII  Fig. VIII  Fig. IX  Fig. X  F:i,g. XI  Fig. XII  Superheat Chart  Helium Purity  .....................  .  .  .  .  .  .  .  .  .  .  Dynamic Lift Chart  Take-Off Chart  .  .  . .  .  . .  .  . .  .  .  .  .  .  .  . . . . . .  .  . .  Air Pressure System  Air Scoops  .  .  .  .  .  .  .  .  .  . . .  .  Air Pressure in Excess of Gas Pressure  - VS - % Fullness of Ballonets at Zero  Pitch Angle at Standard Unit Lift  Conditions  ···············~··········  36" Air Valve, K-3 thru K-53, Excl. of  K-49  ........•.......•..............•  36" Air Valve, K-49, K-54 & Future •••  Helium Inflation Sleeve  Flight & Instrument Panel  Starting Auxiliary Blower  .  .  .  .  . .  .  .  .  .  .  . .  .  .  .  .  .  6  8  13  14  24  25  26  31  34  40  42  44  Fig. XIII  Controls, Instruments & Auxiliaries  Chart  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  46  Fig. XIV  Operation Chart - Pressure Control  Sys tern  •  •  •  •  •  •  •  •  •  •  4 7  Fig. XV  Major Controls  48  Fig. :xvi  Fig. XVII  Top of Landing Gear Strut  .  . .  .  .  . . .  .  Landing Gear Shaft  . .  .  .  .  .  .  .  50  51  xi 