Endurance test.

CFR · 2024-01-01 · US · Title 14

(a) (b) (1) A 30-hour run consisting of alternate periods of 5 minutes at rated takeoff power with takeoff speed, and 5 minutes at maximum best economy cruising power or maximum recommended cruising power. (2) A 20-hour run consisting of alternate periods of 1 (3) A 20-hour run consisting of alternate periods of 1 (4) A 20-hour run consisting of alternate periods of 1 (5) A 20-hour run consisting of alternate periods of 1 (6) A 20-hour run consisting of alternate periods of 1 (7) A 20-hour run consisting of alternate periods of 2 (c) (1) A 30-hour run consisting of alternate periods in the lower gear ratio of 5 minutes at rated takeoff power with takeoff speed, and 5 minutes at maximum best economy cruising power or at maximum recommended cruising power. If a takeoff power rating is desired in the higher gear ratio, 15 hours of the 30-hour run must be made in the higher gear ratio in alternate periods of 5 minutes at the observed horsepower obtainable with the takeoff critical altitude manifold pressure and takeoff speed, and 5 minutes at 70 percent high ratio rated maximum continuous power and 89 percent high ratio maximum continuous speed. (2) A 15-hour run consisting of alternate periods in the lower gear ratio of 1 hour at rated maximum continuous power with maximum continuous speed, and (3) A 15-hour run consisting of alternate periods in the lower gear ratio of 1 hour at rated maximum continuous power with maximum continuous speed, and (4) A 30-hour run in the higher ge

official document · source cfr-2024 · id 14:§ 33.49