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 Martin M-130 Pilot's Handling Notes - Original engines 1935 - 1937

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SUMMARY.

 

This M-130 has four 830hp Pratt & Whitney R-1830-S1A-2G Twin Wasp engines which are carburetted and slightly supercharged. 900hp is briefly available for TOGA. The (virtual) flight engineer selects fine pitch for take off and will select course pitch for cruise climb and cruise. These engines have automixture. Set AUTOMIXTURE ON in the realism screen.

 

WARNING - If significant headwinds are encountered during first half of a long haul flight return to point of departure. If significant headwinds are encountered during a short haul flight, or late in a long haul flight continue to destination, descend to 500 feet and apply cruise climb power. This will yield 129 KTAS at 500 feet at 41,000lbs (Plan 1250 PPH).

 

WARNING - maximum safe landing weight is 48,000lbs but normal landing weight is 32,000lbs

 

CAUTION - This aircraft is unpressurised do not exceed FL120.

 

Maximum fuel load is 24,462 pounds for propaganda flights, but normal and default fuel load is only 21,000 pounds. All fuel burn figures are for planning purposes and will vary slightly with altitude. Adjust fuel and payload using the FS9 fuel and payload menu.

 

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HANDLING THE AIRCRAFT

 

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Take Off:

 

MIXTURE = AUTO in realism screen

 

CARB HEAT = COLD

 

COWL FLAPS = 4 degrees

 

TRIM + 4 degrees (use wheel tooltip for guidance)

 

CALL for FINE PITCH

 

CALL for TOGA POWER  (4 x 900hp)

 

Slowly apply FULL THROTTLE

 

ROTATE at 80 KIAS  (@ 51000lbs)

 

Establish positive rate of climb

 

CLIMB = 200 feet ASL <= 100 KIAS

 

ENGINEER SELECTS COURSE PITCH

 

Note RPM DECREASE @ 100 KIAS

 

= 200 ASL ACCELERATE = 115 KIAS

 

Begin CRUISE CLIMB (@ 75% METO)

 

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Cruise Climb: (75% METO = 625hp x 4)

 

COWL FLAPS = 2 degrees

 

MAP = 29 (max)

 

Cruise / Climb = 115 KIAS

 

Plan 1200 PPH

 

Note: Yields 141 KTAS @ FL70 @ 41000lbs

 

WHEN weight = 39,000lbs and nil wind

 

Begin LIGHT CRUISE CLIMB (@ 60% METO)

 

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Light Cruise Climb: (60% METO = 500hp x 4)

 

Use < 39000lbs

 

Use only with no significant headwind

 

COWL FLAPS = Closed

 

MAP = 25 (max)

 

Cruise / Climb = 115 KIAS

 

Plan 1000 PPH

 

Note: Yields 136 KTAS @ FL120 @ 39000lbs

 

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METO Power (830hp x 3)

 

After engine failure or for go around

 

COWL FLAPS = 4 degrees

 

MAP = 35

 

Plan 1250 PPH (3 engines)

 

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Descent:

 

DO NOT EXCEED Vno = 150 KIAS

 

COWLS = CLOSED

 

REDUCE MAP <= 3 inches per minute

 

115 KIAS

 

See CARB HEAT below

 

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Approach and Circuit:

 

COWL FLAPS = 2 degrees

 

Downwind abeam touchdown zone

 

REDUCE = 80 KIAS

 

Touch down @ 70 KIAS (@ 32,000lbs)

 

COWL FLAPS = FULL OPEN

 

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Carb Heat:

 

When < 30 inches MAP with an OAT below 5C (40F)

use carb heat periodically to clear carburettor ice.

Continuous use of carb heat is not recommended.

 

NOTE:  You must Reload Aircraft before taking off

again.