Common use of Take-off Clause in Contracts

Take-off. When operated under the following conditions and with Air Conditioning 'ON': Pressure altitude : 21 ft Ambient temperature : 84(degree)F Take-off run available ("TOR") : 10,499 ft Take-off distance available : 10,499 ft Accelerate-stop distance available : 10,499 ft Slope : 0.1% uphill Wind : Zero Obstacles (height and distance : 23 ft/1,054 ft from end of TOR) : 167 ft/14,000 ft : 530 ft/42,472 ft Runway surface : Dry the maximum permissible weight at the start of ground run will be not less than the guarantee value. Nominal: 507,060 lb Guarantee: ***