9. DESCENT PERFORMANCE Main page Previous Next

Lockheed 1049G/C121G Super Constellation
Operations Manual Synopsis

Descent Performance


Stage of Flight


Blowers


RPM


BMEP

Kts
IAS
%
Cowl
Flaps
%
Oil
Flaps
%
Wing
Flaps
Initial Descent
Approx. 1000 FPM
High 1800 120 Less than
Vne or Vb
AR AR Up
Low under
10,000 Ft.
1700 110 AR AR Up
Emergency Descent
Gear and Flaps
Low 2600 Idle 155 100 100 100
Emergency Descent
Clean
Low 2600 Idle 293 100 100 Up
Traffic Area Low 2400 AR 170 AR AR 60
Downwind Low 2600 AR 140 AR AR 60
Base Low 2600 AR 140-130 AR AR 80
Final Approach Low 2600 AR Vapr, Vat AR AR 100
Missed Approach Low 2900 Max Vy 40 40 See notes
* AR: As required by operating conditions.
* Ignition: Retard spark above 2500 RPM with low blowers, and above 2400 RPM with high blowers. Except when the checklist directs otherwise, use Normal Spark below these RPM settings.
* Missed Approach Notes: Gross Weight must be 110,000 or less; raise flaps to 60%, establish Vx or Vy; Gear Up when Flaps 60%, Flaps up at Vy; Accelerate to 152 Kts IAS, climb to missed-approach fix.

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