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Ryan Chou

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顽劣的小孩儿

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11/15/2009

七宗罪--七美德

      罪行                                 美德

  色欲      Lust                                              贞洁        Chastity

  贪食   Gluttony                                         节制     Temperance

  贪婪     Greed                                           慷慨        Charity

  懒惰      Sloth                                           勤奋      Diligence

  愤怒     Wrath                                           耐心       Patience

  妒忌      Envy                                            宽容        Kindness

  傲慢      Pride                                            谦逊         Humility

忙碌的几天

前天去机场和Don接公司的新一批学员,十几个小时的跨洋飞行,看得出大家的疲惫,拿好行李走出航站楼的时候一个师弟问我说我头发怎么都这么长了。忽然看看大家,离开公司这么久了,也没再关注过这些细节,最近忙也不忙,一直懒得去剪,头发也很长了,看着大家短短的头发,一个个都朝气蓬勃而且精神十足的样子。等车的时候想起曾经的自己和我们,刚刚到这里来的时候一切都要自己去面对去了解,而到如今又总觉得曾经努力的还不够。
11/4/2009

Wind correction

在等待航线上,如果有较大侧风,在转弯前注意风速风向。

地速增大(顺风)转弯角度略大于标准转弯

地速减小(逆风)转弯角度略小于标准转弯

正侧风,标准转弯。

所以要根据风向指示器的指示随时调整转弯角度。

另外在近进航线上,一般是向正侧风方向偏角约为侧风强度的一半略小。

11/3/2009

11月3日地面课

Electrical system

补充之前总结

        关于两个alternator可以互相平衡的意思是说如果一个发电机过热,这一个将主动降低负载而让另一个发电机承担更多的载荷,防止过热损坏。

        All alternator failure,the main battery will supply the ECU for 30 mins after that the engine can not work any more.

        Hot Bus: Pilot map/reading light      without battery master ON

        Battery Bus: LH/RH main Bus

                            LH/RH ECU Bus (via diode)

                            LH/RH starter heavy duty power

        LH Main Bus: PFD/ADC/AHRS/COM1/GPS1/NAV1/TXBD/Engine instrument/

                              Pitot heat/Oxygen sys/Gear control/Gear warning/Map light/

                              Flood light/Taxi light/ACL

        RH Main Bus: Avionic Bus/MFD/Horizon/Starter control/Flaps/

                               Avionic CDU cooling fan/Stall warning/AP/

                               Landing light/Navigation light/Instrument light

        Avionic Bus: COM2/GPS2/NAV2/Audio panel/AP/DME/Data link/WX500/ADF/WX radar

        Electrical master ON –> will let the main battery supply the Battery Bus and also the LH/RH Main Bus

        Engine Master –> connect with ECU Bus, excitation battery and also the GLOW and unfeathering accumulator

Auto Pilot

        ALT mode push the ‘UP’ button 1 time make the aircraft climb 20ft.

10/31/2009

10月30日地面课

燃油系统

        通常是同侧油箱供应同侧引擎。燃油是由高压油泵输入共轨系统(common rail)后直接射入气缸,而高压油泵的油来自低压油泵。共轨系统中的油压由ECU根据power setting决定。高压油泵和低压油泵均为引擎机械驱动。未射入气缸的燃油会返回油箱。

共轨系统:为提高柴油机燃烧效率,用电子手段精确控制进入气缸的柴油供给量和供油时刻。如图

clip_image002

Fuel selector valves

        三个模式 On/X-feed/Off

        X-feed表示被另一个油箱feed。哪个油箱真正供油,回油就通向哪个油箱。

左开关

右开关

左油箱

右油箱

回油

ON

ON

供左引擎

供右引擎

同侧油箱

ON

X-feed

供左右两引擎

不供油

回左油箱

ON

OFF

供左引擎

不供油

回左油箱

X-feed

ON

不供油

供左右引擎

回右油箱

X-feed

OFF

不供油

供左引擎

回右油箱

油箱

        每个机翼上各有一个油箱,每个油箱分成三个chambers。每侧有1USG unusable fuel,可用的油有50.8加仑

最大可以接受5加仑的unbalance。

        飞机没有低压的booster pumps。

        油箱中有两个Vents,一个包括一个带有check valve的capillary,另一个是一个relief pressure valve。Relief pressure valve是为了在AUX fuel transfer失效的时候保护油箱,防止油压过高。带Check valve的capillary是为了连通油箱和大气,在爬升时保证油箱内外气压平衡而不会把油带出油箱。

Hydraulic

    Brake

        刹车盘 rotor 卡钳 Caliper

        Parking brake set之后要踩几下刹车,给卡钳建立液压压力,才能保证刹车。

   Landing gear

Hydraulically operated

Electrically powered hydraulic pump

Electrically actuated hydraulic valves operated by gear selector switch

Squat switches prevent retraction on the ground

Warning horn with ‘gear up’ and ‘1 power lever in low position ~20%’ or ‘flaps LDG’

Gear down lock=spring loaded

Down lock released by hydraulic pressure for retraction

Green lights=gear down and locked

Red light=gear neither down nor up

Gear held up hydraulically

Emergency operation=free fall (by releasing hydraulic pressure)

If gear problem before landing just on final(for check ride) à Go around à safetyàchecklist

Hydraulic fluidà Red

Nose wheel steered with rudder pedals

Steering angleà30°without use of breaks 52°with one wheel fully breaked

 
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