[CHECKING] Hook Bypass switch

[RED]

The hook bypass switch does not move back to "Carrier" as described in the NATOPS and can lead to a flashing AOA Indexer with the hook down.

2.12.10 Angle-Of-Attack (AOA) Indexer. The AOA indexer (figure 2-19) is mounted to the left of the

HUD. It displays approach angle of attack (AOA) with lighted symbols. Corresponding AOA

indications are shown on the HUD. The indexer only operates with the landing gear down, W-off-W, a valid ADC AOA signal and a functional ADC. The lighted symbol(s) flash if the arresting hook is up and the hook bypass switch, on the left vertical panel, is in CARRIER. The symbols do not flash with the arresting hook up and the hook bypass switch in FIELD. The switch is solenoid held to FIELD and automatically goes to CARRIER when the arresting hook is lowered or aircraft power is removed. The AOA indexer knob on the HUD controls dimming of the symbols. All symbols light when the lights test switch on the interior lights control panel is held to TEST.

[BarTzi]

+1 - came across this bug report after reading the same paragraph in NATOPS, and there are indeed a few inconsistencies with the way the switch behaves:

 

1. When you start on a carrier, hook bypass is set to 'carrier' and is held there - which is correct. You should not be able to move it from 'carrier' to 'field' until you have power.

 

2. When you start on an airfield (no power) - hook bypass is set to 'field' and this is not correct. If you then move it to 'carrier' it will be held there, which is the correct behavior. The logic is correct - the initial position of that switch, in that case, isn't. It doesn't matter where you land- when the plane has no power it should move to 'carrier'

 

3. Hook bypass should automatically move to 'carrier' when you deploy your hook (you should not be able to move it to 'field' again when the hook is down). This doesn't happen all the time.

 

If you start in the air, and hook bypass is set to 'field', it won't move to 'carrier' when you deploy your hook initially. You have to first toggle the switch to 'carrier' and then back to 'field' to make this happen. (This is displayed in the track I attached)

 

It seems like something with the initial position of the switch messes up the logic (which is correct).

Hook bypass.trk

Edited November 26, 2019 by BarTzi