[资料]F-15 AFM FAQ

L0op8ack

FAQ for F-15 AFM Development

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1. Nose Wheel
1) Steering system automatically engages when nose gear is on the ground
2) Nose Gear Steering Disengage (LAlt + Q, must be held) - disengages nose gear steering system. Steering will re-engage when button is released and nose gear rotated less than 45 degrees
3) Nose Gear Maneuvering Range (S, must be held) - selects maneuvering range (45 degrees)

2. Braking
1) Wheel Brake On (W) - brakes with both wheels
2) Wheel Brake Left On/Off (LCtrl + A) and Wheel Brake Right On/Off (LAlt + A) - discrete braking, each command for its wheel. Also there are separate axis
3) Axis can be inverted. If you have trouble with landing and touchdown, check brakes axis settings

3. Fuel system
1) Fuel quantity indicator now indicates fuel quantity in Feed tanks. Their capacity is different - near 1500 lbs right and 1250 lbs left
2) FUEL LOW light shows low fuel level in feed tanks, 1000 lbs in right feed tank and 600 lbs in left feed tank
3) External tanks refueling is prevented until tank 1 fuel quantity is above approximately 1560 lbs
4) While air refueling, if FUEL LOW light is off, and when gear is down, fuel won't transfer into internal tanks
5) While air refueling fuel won't transfer from tank 1
6) Fuel dump stops when BINGO FUEL light is on

4. Control system
1) FFB isn't working now, it's known. WIP
2) AFCS Attitude Hold - holds pitch and roll. All three CAS channels must be on to switch Attitude hold on.
    ATT HOLD is automatically disengaged when: load factor is greater than +4g and less than 0g, CAS axis is disengaged.
    Is temporary disengaged when: pitch is greater than +-45, roll is greater than +-60 or stick forces is applied.
    Can be engaged by A  key
3) AFCS Altitude Hold - holds altitude and roll.
    Attitude Hold must be engaged to switch Altitude hold on.
    ALT HOLD is automatically disengaged when: Attitude hold is disengaged, vertical velocity exceeds 2000 FPM.
    Is temporary disengaged when: roll is greater than +-60, stick forces is applied.
    Can be engaged by H  key
4) Autopilot lights are working incorrect. It's known issue. WIP You can check mode by its switch

5. Speed brake
1) You can extend and retract speedbrake to any desired position using Airbrake On (LShift+B) and Airbrake Off (LCtrl+B).
    First press start moving, second stops. With Airbrake (B) command speedbrake extends and retracts to its extreme positions
2) Speedbrake automatically retracts when AoA becomes more than 15.5 degress (25.5 units).
    It automatically extends, when AoA is reduced (WIP)

nowotny

二师兄的扫盲贴及时！

vegue

第四条能通俗地讲几句吗？看不太懂啊,特别是缩写什么的。以前我一般只按A就完了

L0op8ack

俯仰/滚转姿态保持按A
过载超过4G或小于0 / CAS任意通道被关闭，将自动关闭姿态保持
俯仰超过+-45度，滚转超过+-60度，或者动了杆子，姿态保持将临时关闭

高度保持按H，必须先开姿态保持（按A）
姿态保持关闭 / 垂直速率超过2000 ft每分钟，高度保持将自动关闭
滚转超过+-60度，或者动了杆子，高度保持将临时关闭

当前beta版本的自动驾驶状态指示灯不可用，需要查看，请用检查面板按钮状态的方式。

vegue

多谢！我有空试一试

LJQC

最近要对F-15C的PFM进行飞行特性测试，但是碰到个问题，AOA Unit和AOA Degree不知怎么换算，导致所有飞行手册中要以AOA Unit作参考的飞行特性没法测。只知道个25.5 Units = 15.5 Degrees

vegue

L0op8ack 发表于 2014-7-16 13:59
俯仰/滚转姿态保持按A
过载超过4G或小于0 / CAS任意通道被关闭，将自动关闭姿态保持
俯仰超过+-45度，滚转 ...

学渣经过试验了以后发现按A, ctrl+2 or ctrl+3,有一个红色的相应的指示灯亮（autopilot, yaw/roll），开关也被拨动，但飞机没有任何动作上的变化。H, LAlt+4, LAlt+9均没有任何动作上的变化，也没有看见开关或者指示灯的变化。Ctrl+1有一个红色的相应的指示灯亮(pitch)，开关也被拨动，但机头不停地向下掉，我不得不把飞机拉起来并关掉这个功能。我是不是哪里没设置好？CAS的全称是什么？

LJQC

以前玩Jane's F-15E一向很习惯Unit，只是FC3的AOA仪表和HUD上的AOA标尺显示的是Degree没法和手册上的Unit对上。AOA标尺下方的数字倒的确是AOA Units，只不过平时不常看到~

PS: 问题解决了，简单测试一下就行，FC3两种单位都有~

10° = 20 units
13° = 22 units
15° = 25 units
20° = 30 units
（F-15C Only）

shawsun

这个东西很有用，谁给翻译一下。

shawsun

vegue 发表于 2014-7-16 08:38
第四条能通俗地讲几句吗？看不太懂啊,特别是缩写什么的。以前我一般只按A就完了

请问，盘旋需要按a吗？