1. OPERATIONAL AIRSPEEDS | Main page | Next |
Lockheed 1049G/C121G Super Constellation
Operations Manual Synopsis
Operational Airspeeds IAS in Knots, wings level, 1 g-load factor |
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Gross Wt. Lbs. |
Vs |
Vso 60% |
Vso 80% |
Vso 100% |
Vr |
V2 |
Vx |
Vy |
Vapr |
Vat |
Short Vat |
90,000 | 98 | 88 | 81 | 78 | 88 | 99 | 104 | 113 | 110 | 101 | 91 |
100,000 | 104 | 92 | 85 | 82 | 94 | 105 | 110 | 120 | 117 | 107 | 97 |
110,000 | 109 | 97 | 89 | 86 | 99 | 110 | 115 | 125 | 122 | 112 | 102 |
120,000 | 114 | 101 | 93 | 90 | 104 | 115 | 120 | 131 | 127 | 117 | 107 |
130,000 | 119 | 105 | 97 | 94 | 109 | 120 | 125 | 137 | 132 | 122 | 112 |
140,000 | 123 | 109 | 100 | 97 | 113 | 123 | 129 | 142 | 136 | 126 | 116 |
* IAS: airspeed displayed on airspeed gauge. * Vs: stall IAS with landing gear and flaps up. * Vso: stall IAS with flaps and gear down (landing configuration). * Vso%: percentage of flap extended for Vso IAS. When flaps deployed, Vso speeds with gear up or down are the same. * Vr: rotation IAS. Slowly lift nose so takeoff attitude reached as V2 is reached. * V2: liftoff IAS * Vx: best angle of climb IAS * Vy: best rate of climb IAS * Vapr: approach IAS * Vat: threshold (over the fence) IAS. * Short Vat: short-field landing Vat IAS; must make power approach * Above table is calculated from Operations Manual graph on pages 6-2, figure 6-2 (Sheet 1 of 3) and 6-3, figure 6-2 (Sheet 2 of 3). Refer to this graph to calculate stall speeds at other gross weights, angles of bank, and g-load factors. |
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