Specifications for the Beechcraft 95 Travel Air

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rev1 Critical Engine A critical engine is the engine which; if lost, will most adversely affect the performance and handling characteristics of the aircraft. 4 Factors to Determine Critical Engine: P- P-factor A- Accelerated Slipstream S- Spiraling Slipstream T- Torque Vmc Minimum Controllable Airspeed How Vmc is Determined: C- Critical engine failed and windmilling O- Operating engine at max T/O power M- Max gross weight B- Bank of no more than 5° A- Aft center of gravity T- Takeoff configuration S- Standard temperature and pressure Lowers Vmc (good) Add power to Critical Engine Reduce Drag Reduce power on the Operating Engine Forward CG (longer rudder arm) Gear Down Lower Pressure Higher Altitude Higher Temperature Increases Vmc (bad) Reducing Bank Higher Pressure Lower Temperature Lower Altitude BE95 BEECH TRAVEL AIR N677Q ENGINE OPERATING LIMITS Indication Red Low / Yellow Green Red High Oil Temp 60 - 140° 140 - 245° 245° - Up Oil Pressure 25 psi (min idle) 65 - 85 psi 85 psi - Up Fuel Pressure 0 – 0.5 psi 0.5 – 6.0 psi 6.0 psi – Up Cylinder Head Temp 200 – 500° 500° - Up Prop Tach 2,000- 2,700 RPM 2,700 - Up RPM Manifold Pressure 14.5 – 28.5” 28.5” - Up Suction 0 – 4.5” 4.5 – 5.5” 5.5” - Up Vspeeds MPH Vr 85 Vmc 84 Vx 95 Vxse 100 Vy 105 Vyse 100 Va 160 Vsse 100 Vne 240 Vle 150 Vno 185 Vfe 130 Vso 70 FUEL (TOTAL/USEABLE) BE95 MAX WT Total 112 / 106 Takeoff 4,000 Mains 50 / 44 Fwd Baggage 270 Aux 62 / 62 Aft Baggage 270 Each AUX; 31 / 31, Each MAIN; 25 / 22 VSL Aviation rev1 ALTITUDE LIMITATIONS AT 4,000 lbs Two Engine Service Ceiling Single Engine Service Ceiling 19,300’ (100 fpm) 6,200’ (50 fpm) Engines Specs: 2 x Lycoming O-360 A1A 4-cyl horizontally opposed, carbureted, air cooled, naturally aspirated, Max 28.5” 2 x 180 hp each = Total 360 hp Oil capacity: 6-8 qts per engine (5 qt min) Fuel burn: 10 gals / hr per side Propellers Specs: Two-bladed Hartzell constant speed, full feathering props. Maximum 2700 RPM Maintains constant RPM: With oil pressure through the prop governor (speeder springs / flyweights / pilot valve) Nitrogen unfeathering accumulator: Brings prop out of feather Locking pins: Prevents props from feathering when engine is < 800 RPM. Saves wear and tear on starters. Fuel System Fuel Capacity: 112 total (106 useable) 4 Tanks: Two MAIN: 25 gal ea (22 usable) Two AUX: 31 gal ea (all usable) 4 fuel pumps: 2 eng drive & 2 elec boost 9 fuel sumps: 4 ea wing and 1 under nose Fuel grade: 100LL (blue dyed & 6 lbs/gal) X-Feed: Emergency Only Fuel Limitations: 1. ALWAYS T/O & LAND on MAINS. 2. NEVER T/O with < 10 gals (yellow arc). 3. WAIT 30s before t/o after high-speed taxi. Heater Janitrol 35,000 BTU Combustion Heater: Located in the nose compartment. Self- contained system. Draws fuel from left main tank and ignites in the nose. Blower then circulates hot air throughout the cabin. Electrical 28V system: 2 x 12V battery (series) 2 x 28V generators – 60 amps Circuit breakers: Protects the system Voltage regulator: Parallels Loads Gear and Flaps System: 100% electrical Landing Gear Sungear system: Uses a torque motor to rotate a circular disk, which is connected to push pull rods attached to the landing gear. The push pull rods push the gear and doors out and pulls them in. ‘WOW’ or Squat switch: On L Main Gear. Prevents the gear from retracting on ground. Other safety systems: Gear warning horn, nose gear indicator and nose gear mirror Gear hand crank: For emergency use (roughly 50 turns counterclockwise) Landing checks: “Down & Green” (verified twice and one in the mirror) Locks: Mechanical Up-Locks, and over- center linkage w/ spring locks gear down Flaps Micro switch: Up, Off, or Down position Full flaps: 30° (10 / 20° marks on L Flap) Flaps: Uses electric motor connected to flexible torsion cables which drive flaps down with jackscrews VSL Aviation rev1 Oral Exam Prep Vmc A thorough knowledge of Vmc is probably the most important subject on the oral exam. 1. Be able to define Vmc. 2. How does the manufacturer determine Vmc speed? 3. What happens to Vmc if the aircraft is loaded aft of the CG limit? 4. How is Vmc determined? 5. What factors affect Vmc? Critical Engine 1. Define a critical engine? 2. What determines a critical engine? 3. Why do some airplanes have a critical engine and some don’t? 4. Does the Travel Air have a critical engine? Weight and Balance Complete your weight & balance! Be able to use the charts and graphs in the POH. Explain zero fuel weight. Aircraft Systems Know your systems! Fuel system Landing gear Electrical system Constant speed; full feathering props Heater system Pressure system Airspeeds Red line / Vmc Blue line / Vyse Vy, Vx, Vyse, Vxse, Vmc, Va, Vlo, Vle, Vso, Vsse, Vno, Vne Performance Charts Know your performance! 1. Takeoff distance 2. Accelerate-stop distance 3. Accelerate-go distance 4. Takeoff weight to achieve single engine climb 5. Climb performance: 2 eng, 1 eng 6. Cruise chart: TAS, fuel flow, range 7. Single engine service ceiling 8. Landing distance: flaps up, flaps down VSL Aviation