MIL-DTL-62177E AVDS-1790-2 Engine Series Specification Download
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MIL-DTL-62177E 9 b. Exhaust gas temperature 1250°F (677°C) (measured at individual cylinder ports; temperature variation between cylinders shall not exceed 150°F (66°C) under full power setting). 3.6.3 Low pressure. The engine shall output not less than 75% of the rated power during exposure to ambient conditions equivalent to altitudes up to 8000 ft (2438 m) (see 4.6.5.3). 3.6.4 Grades and slopes. The engine shall operate satisfactorily on longitudinal grades up to 60% and on lateral slopes up to 36% with no evidence of faulty lubrication, cooling, fuel supply, or leakage (see 4.6.5.4). 4. VERIFICATION 4.1 Classification of inspection. The inspection conditions specified herein are classified as follows: a. First article inspection (see 4.3). 1. Preproduction inspection (see 4.3.1). 2. Initial production (see 4.3.2). b. Conformance inspection (see 4.4). 1. Examination (see 4.4.2). 2. Tests (see 4.4.3). 4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be conducted under the following condition: Air temperature: 55°F (13°C) to 100°F (38°C). 4.3 First article inspection. First article inspection shall be performed on preproduction and initial production samples as specified herein, except where production of engines is continuously maintained, then the most recent first article inspection and first article endurance or NATO endurance cycle test shall be sufficient. Approval of the first article sample by the Government shall not relieve the contractor of the obligation to supply engines that are fully representative of those inspected as a first article sample. Any changes or deviation of the production units from the first article sample shall be subject to the approval of the contracting officer. 4.3.1 Preproduction inspection. When specified (see 6.2), the preproduction sample shall consist of one engine of each type (see 1.2). Preproduction inspection shall consist of inspection as specified in table IV. 4.3.2 Initial production inspection. Unless otherwise specified (see 6.2), the Government shall randomly select one engine from the first ten engines of each type (see 1.2) produced under