user error Altimeter Stuck in PNEU Mode

[PacFlyer23]

Since the recent update when I cold start my A-10Cii its Altimeter is in pneumatic mode and will not switch to electric mode, no matter how many times I hit the mode switch, including trying after both engines are up and running. 

[demolish56]

It would seem you have to hold it to electric. I don't know why it now defaults to pneumatic though.

[PacFlyer23]

Yes, holding the switch to Elect works but it turns out you have to be on full APU power and not battery. Also, I've not seen this action noted in any of the various A-10C checklists folks have created over the years, so it seems like a change.

Thanks. 

[ASAP]

On 7/20/2024 at 2:05 PM, PacFlyer23 said:

Yes, holding the switch to Elect works but it turns out you have to be on full APU power and not battery. Also, I've not seen this action noted in any of the various A-10C checklists folks have created over the years, so it seems like a change.

Thanks. 

IRL the altimeter will always start in pneumatic. It should allow you to switch it to electric once AC power is applied to the jet. checking that pneumatic and electric altimeter matches withing 75' of each other is one of the startup checklist items.

[demolish56]

Step 50 in Before Taxiing in the -1. Thanks ASAP I missed that one.

[Ramses823]

Yea it actually works like it should now;  it actually used to bother me before when you didn't have to switch it to electric lol...

[PacFlyer23]

On 7/21/2024 at 1:52 PM, ASAP said:

IRL the altimeter will always start in pneumatic. It should allow you to switch it to electric once AC power is applied to the jet. checking that pneumatic and electric altimeter matches withing 75' of each other is one of the startup checklist items.

Thanks for clarifying. I should point out that there's noting in the A-10C manual about this nor the checklist in the manual. Might be something ED could add to a future revision.

Edited July 23, 2024 by PacFlyer23