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Author Topic: Radar Altimeter  (Read 1389 times)

donv

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Radar Altimeter
« on: December 13, 2022, 01:43:31 pm »
So my 980 still has the same old Collins Radar Altimeter that it had since it was new. It is interfaced so it no longer has an external display-- it just shows up on the G600, which is nice.

However, and this has been an issue with the airplane as long as I have had it, at cruise it sometimes starts to think there is ground beneath us, and will cycle up and down. It doesn't happen all the time, and I think I've finally figured out that it is related to cold temperatures-- it usually doesn't happen much in the summer.

Anyone else have this? At cruise, if it starts to do this, I just turn it off and turn it back on descending through FL180, when it seems to work fine.

Adam Frisch

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Re: Radar Altimeter
« Reply #1 on: December 13, 2022, 11:03:40 pm »
I have one of those myself in mine. Never looked at it once so far (not even sure it works). But I can see the benefit on dicey approaches or over water etc.
Slumming it in the turboprop world - so you don't have to.

donv

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Re: Radar Altimeter
« Reply #2 on: December 13, 2022, 11:12:26 pm »
I find it to be really nice when doing a visual approach, especially at night. It is great to know you are 1500 feet above the ground.