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6、公共點(diǎn)的位置:
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
2、爬升剖面
3、最佳爬升
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
2、爬升剖面
3、最佳爬升
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
4、其他爬升
2、最佳爬升
影響因素( 總結(jié))
1、重量:重量越大,速度越大。
2、風(fēng):影響爬升的耗油量,
100節(jié)順風(fēng):使最佳表速減小約5節(jié);
100節(jié)頂風(fēng):使最佳表速增大約5節(jié);
3、爬升馬赫數(shù):
4、溫度:
5、爬升頂點(diǎn)的高度:
6、公共點(diǎn)的位置:
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
4、其他爬升
3、最小成本爬升方式
爬升航段成本最少的爬升方式。包括燃油成本、時(shí)間
成本(小時(shí)費(fèi)、維修費(fèi)、飛機(jī)租賃費(fèi)等)、固定成本三部
分。
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
Fuel Costs
15%
Hourly Costs
Fixed Costs 32%
53%
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
4、其他爬升
3、最小成本爬升方式
改變爬升速度,
可以使前兩項(xiàng)的和最小。
ECONOMY
=
Minimize D.O.C.
Compromise Time / Fuel ...
Lower fuel
consumption
Lower
flight time
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
5、爬升圖表的使用
1、圖表介紹
圖冊:P82、P83、P84;P79、P80、P81
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
5、爬升圖表的使用
2、圖表特殊用法
1、風(fēng)速修正
爬升:2/3的航路風(fēng);
2、重量的迭代計(jì)算
3、航路爬升問題
(VW1+VW2)/2;
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
5、爬升圖表的使用
2、圖表特殊用法
4、機(jī)場標(biāo)高的修正
0 0 ( 1500') 1500'
0 0 ( 1500') 0 1500'
;
;
ELE FL FL ELE ELE ELE
ELE FL FL ELE
D D D D
D D D D
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
5、爬升圖表的使用
3、例題與作業(yè)
47、B757-200(RB211535E4)松剎車重量225000LB,
機(jī)場標(biāo)高3500FT,巡航高度FL370,航路60節(jié)順風(fēng),溫度
為ISA+15,求以290KT/0.78M爬升時(shí)爬升到巡航高度所用
的時(shí)間,油量和飛過的地面距離。
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
3、爬升圖表的使用
3、例題與作業(yè)
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
3、爬升圖表的使用
3、例題與作業(yè)
50、B757-200(RB211535E4)在FL330巡航,在重量為
200KLB時(shí)以M0.78爬升到FL370,F(xiàn)L330上40節(jié)順風(fēng),
FL370上50節(jié)順風(fēng),溫度為ISA+20,求爬升所用時(shí)間、油
量和飛過的地面距離。
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
3、爬升圖表的使用
3、例題與作業(yè)
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
3、爬升圖表的使用
3、例題與作業(yè)
作業(yè):48題、49題;
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
復(fù)習(xí)
1、爬升過程的加減速問題?轉(zhuǎn)換高度與溫度有無關(guān)
系?
2、風(fēng)對(duì)爬升梯度、爬升率的影響?
3、重量對(duì)最佳爬升速度的影響?
4、速度限制?
6、習(xí)題48、49
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
主要研究飛機(jī)從巡航終點(diǎn)到進(jìn)近開始點(diǎn)(1500ft)的下
降過程的飛機(jī)特性問題。
推力:空中慢車推力(幾乎為零)。
重點(diǎn):下降時(shí)間、地面距離。
飛機(jī)性能工程
airplane performance engineering
Department of Flight Operation,Air Traffic Management College, CAUC
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飛機(jī)性能工程(28)