Why does nobody talk about the old fiber optic light meters for pitot-static checks?

We found a 15 year old one in a hangar in Mobile and compared it to our new digital unit, the readings were within 0.1% after a fresh cal. Anyone still have these in their kit as a backup?

2 comments

2 Comments

mia_thompson1312d ago

Honestly those old fiber optic meters are built like tanks. We kept one as a backup for years because the digital ones can act up in really cold hangars. As long as it's been calibrated, that 0.1% check is solid. Might be worth hanging onto it just for peace of mind.

kelly.robin12d ago

I get the "built like tanks" thing, but that weight and bulk is exactly why we got rid of ours. Our old fiber optic unit was a pain to carry up ladders and took forever to warm up and settle. The new digital one is just faster and easier for every single check.