(5)
50 percent takeo. power.One minute at50percenttakeo.power.
(6)
30-second OEI power. Thirty seconds at rated 30-second OEI power.
(7)
2-minute OEI power. Two minutes at rated 2-minute OEI power.
(8)
Idle. One minute at idle.
(g)
]Supersonic aircraft engines. For each engine type certi.cated for use on supersonic aircraft the applicant must conduct the following :
(1) Subsonic test under sea level ambient atmospheric conditions. Thirty runs of one hour each must be made, consisting of–
(i) Twoperiodsof5 minutesat rated takeo.augmented thrust eachfollowed by 5 minutes atidlethrust;
(ii) One period of 5 minutes at rated takeo. thrust followed by 5 minutes at not morethan15percent of rated takeo.thrust;
(iii) Oneperiodof10 minutes at ratedtakeo. augmentedthrustfollowedby2 minutes atidle thrust, except thatif rated maximum continuous augmen-tedthrustislowerthan ratedtakeo. augmentedthrust,5 ofthe10-minute periods mustbe at rated maximum continuous augmented thrust; and
(iv) Six periods of 1 minute at rated takeo. augmented thrust each followed by 2 minutes, including acceleration and deceleration time, at idle thrust.
(2)
Simulated supersonic test. Each run of the simulated supersonic test must be preceded by changing the inlet air temperature and pressure from that attained at subsonic condition to the temperature and pressure attained at supersonic velocity, and must be followed by a return to the temperature attained at subsonic condition. Thirty runs of 4 hours each must be made, consisting of–
(i)
One period of 30 minutes at the thrust obtained with the power control lever set at thepositionfor rated maximum continuous augmented thrust followed by 10 minutes at the thrust obtained with the power control lever set at the position for 90 percent of rated maximum continuous augmented thrust. The end of this period in the .rst .ve runs must be made with the induction air temperature at the limiting condition of transient overtemperature, but need not be repeated during the periods speci.edinparagraphs[(g)](2)(ii) through(iv) of this section;
(ii)
Oneperiod repeating the run speci.edinparagraph[(g)](2)(i) of this sec-tion, except thatit mustbe followedby10 minutes at the thrust obtained with the power control lever set at the position for 80 percent of rated maximum continuous augmented thrust;
(iii) Oneperiod repeatingthe run speci.edinparagraph[(g)](2)(i) ofthis section, except that it must be followed by 10 minutes at the thrust ob-tained with the power control lever set at the position for 60 percent of rated maximum continuous augmented thrust and then 10 minutes at not morethan15percent of rated takeo.thrust;
(iv)
Oneperiod repeating the runsspeci.edinparagraphs[(g)](2)(i) and(ii) of this section; and
(v)
One period of 30 minutes with 25 of the runs made at the thrust obtai-ned with the power control lever set at the position for rated maximum continuous augmented thrust, each followed by idle thrust and with the remaining5 runs at the thrust obtained withthepower controllever set at the position for rated maximum continuous augmented thrust for 25 mi-nutes each,followedby subsonic operation at not more than15percent or rated takeo. thrust and accelerated to rated takeo. thrust for 5 minutes using hot fuel.
(3)
Starts.Onehundred starts must be made, of which25 starts must bepreceded by an engine shutdown of at least 2 hours. There must be at least 10 false engine starts,pausingfor the applicant’s speci.ed minimumfueldrainagetime before attempting a normal start. At least 10 starts must be normal restarts, each made no later than 15 minutes after engine shutdown. The starts may be made at any time, including the period of endurance testing.
Amdt. 33-18, E.. 8/19/96
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Elodie Roux. Septembre 2003
SubpartF :BlockTests;TurbineAircraftEngines
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：FAA规章 美国联邦航空规章 Federal Aviation Regulations 5(148)
