I have began purchasing instrument for my Skybolt. So Far I have bought a Falcon 2.25″ G-Meter. Two Kollsmans altimeters, one Navy 671CK-010, also a 671-BU-010, In addition a Kollsman airspeed indicator. Kollsman is like the ‘gold-standard’, when it comes to a quality instrumnet. Being that my airplane will be pulling +6/-4 G’s every flight, the quality needs to be good… I picked up both of the altimeters for less than a hundred dollars each. All the instruments will need to be sent out for overhaul.
The Falcon G-Meter is in great condition and will not need to be overhauled.