4. 50-FOOT OBSTACLE CLEARANCE Main page Previous Next

Lockheed 1049G/C121G Super Constellation
Operations Manual Synopsis

Distance From Liftoff to Clear 50-foot Obstacle
Standard Day Thrust and Climb Performance Factor values
Gross Wt.
Lbs.
Kts
IAS
Sea
Level
1,000
Ft.
2,000
Ft.
3,000
Ft.
4,000
Ft.
5,000
Ft.
6,000
Ft.
100,000 104 350 350 350 400 420 540 520
110,000 109 450 450 440 530 580 680 660
120,000 114 600 600 590 680 720 880 840
130,000 119 750 750 740 830 1000 1200 1000
140,000 124 900 900 890 1050 1200 1500 1300
* Distance is from the point that the aircraft is airborne to clear a 50-foot high obstacle.
* Ground Run distance from Takeoff Performance Table 3, or calculated distance from page A-30, figure A-3-18), is added to the above distance to get the total takeoff distance needed to clear a 50-foot obstacle.
* Ground Run Acceleration, Distance, and Time can be calculated (page A-31, figure A3-19).
* Above Table calculated from Operations Manual, pages A3-32, 33, figure A3-20.

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