Figure 2. § 33.87(b), 150-Hour Endurance Test Cycles 16-25 03/09/15 Takeoff -
• 30 min.
Maximum - continuous A1-3 1/2 min.• -4 1/2 min.
Idle - → * 5 min.
1 11/2 5 1/2 AC 33.87-1A Time ~ Hours
Figure 3. § 33.87(c), 150-Hour Endurance Test Cycles 1-15 for Rotorcraft Engine with 30-Minute OEI Power Rating 30 Minute OEI A1-4 Pow er Idle Takeoff Maxim um Continuous 5 min.
30 min.
1/2 min.
4 1/2 min.
5 min.
0 1 2.5 3 5.5 6 Time ~ Hours 03/09/15 AC 33.87-1A
Figure 4. § 33.87(c), 150-Hour Endurance Test Cycles 16-25 for Rotorcraft Engine with 30-Minute OEI Power Rating 30 Minute OEI Pow er Idle Takeoff Maxim um Continuous 5 min.
1/2 min.
4 1/2 min.
5 min.
30 min.
30 min.
A1-5 0 1 2.5 3 5.5 6 Time ~ Hours 03/09/15 AC 33.87-1A
Figure 5. § 33.87(d), 150-Hour Endurance Test Cycles 1-15 for Rotorcraft Engine with Continuous OEI Power Rating A1-6
-4 1/2 min.
1/2 min.- • Figure 6. § 33.87(d), 150-Hour Endurance Test Cycles 16-25 for Rotorcraft Engine with Continuous OEI Power Rating • 1 hr. † 11/2 21/2 31/2 Time ~ Hours
• *- 5 min.
Continuous OEI- Takeoff - Maximum - continuous Idle - A1-7
Figure 7. § 33.87(e), 150-Hour Endurance Test Cycles 1-15 for Rotorcraft Engine with Rated 2 ½ Minute OEI Power Rating A1-8
Figure 8. § 33.87(e), 150-Hour Endurance Test Cycles 16-25 for Rotorcraft Engine with Rated 2 ½ Minute OEI Power Rating *9 applications @ TO One last application in 25 cycles 1/2 min. -4 1/2 min.
Time ~ Hours
- +745 min. * * 30 min.
1 1 1/2
• la- 5 min.
2 ½ - min. OEI - Takeoff - Maximum - continuous Idle - A1-9
-4 1/2 min.
for Rotorcraft Engine with Rated 2 ½ Minute and 30-Minute OEI Power Rating 5 1/2 Figure 9. § 33.87(e), 150-Hour Endurance Test Cycles 1-25 *24 applications at 30 min. OEI One last application at 2 ½ - min. OEI 1/2 min.• 3 1/2 Time ~ Hours *-5 min. * mur 1 1 1/2
• la-5 min.
2 ½ - min. OEI - 30 Minute OEI - Takeoff - Maximum - continuous Idle - A1-10
-4 1/2 min.
Figure 10. § 33.87(e), 150-Hour Endurance Test Cycles 1-15 for Rotorcraft Engine with Rated 2 ½ Minute and Continuous OEI Power Rating 1/2 min. 5 1/2 + 1 hr. 1 11/2 21/2 31/2 Time ~ Hours → -2½ min → 4-5 min.
2 ½-min. OEI - Continuous OEI- Takeoff - - Maximum - continuous Idle - A1-11
Figure 11. § 33.87(e), 150-Hour Endurance Test Cycles 16-25 for Rotorcraft 03/09/15 Engine with Rated 2½ Minute and Continuous OEI Power Rating 2 ½-min. OEI - *-2 min *- - 5 min.* Continuous OEI - Takeoff - * 1 hr. *9 applications at Continuous OEI One last application in 25 cycles Maximum - continuous A1-12 1/2 min.→ -4 1/2 min.
Idle - * *-5 min.
1 112 21/2 31/2 5 1/2 AC 33.87-1A Time ~ Hours
Figure 12. § 33.87(f), 2-Hour Supplemental Endurance Test, Cycle 1 of 4 for Rotorcraft Engine with 30-Second and 2-Minute OEI Power Ratings A1-13 Pow er 1 min.
2 min.
30 sec.
2 min.
30 sec.
Idle Takeoff 50% Takeoff 30 Second OEI 2 Minute OEI 30-min OEI * Greatest of * Continuous OEI, or Max Continuous 30 min. 35 min.
* When the rated 30-min OEI is not the greatest, the entire 65 minute period must be run at the greatest of rated continuous OEI or maximum continuous power 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 Time ~ Minute 03/09/15 AC 33.87-1A
Figure 13. § 33.87(f), 2-Hour Supplemental Endurance Test, Cycles 2-4 for Rotorcraft Engine with 30-Second and 2-Minute OEI Power Ratings 30 Second OEI 2 Minute OEI Takeoff 50% Takeoff Idle Pow er Greatest of 30-min OEI, or Continuous OEI, or Maximum Continuous 1 min.
30 sec.
2 min.2 min.
30 sec.
5 min.
0 5 10 15 Time ~ Minute 03/09/15 AC 33.87-1A
A1-14