LDM

This video shows the teardown and test of a Blackburn Buccaneer height and rate of climb indicator KHB0203 manufactured by Smiths.
00:00 - Intro
01:02 - Teardown
05:34 - Test
Technical details:
- The vertical speed needle is driven using a synchro receiver
- A servo control is used for the altitude. One complete revolution of the synchro corresponds to approximately 25,000 feet.
- Not shown on the video: the triangular screw one can see on the bottom of the front panel permits to adjust the zero altitude by rotating the body of the synchro control transformer used for the servo control.
- The solenoid used for the flag seems activated by a motorized potentiometer. I didn't test this feature.

[@davidparrot4669]

Encore un bel instrument, un grand merci pour le partage c'est toujours un vrai plaisir.

[@FORLAN2708]

I noticed your channel and it's very interesting. I'm assembling thrust reverser for aicraft engine in factory. Previously, I was involved in assembling gyroscopes for navigation devices for aviation and ships.

[@Cyrob-org]

Hello, encore de la belle mécanique :)

Thank you for sharing.

[@msylvain59]

Thanks I have been considering getting one of those for a long time, unusual shape and connector... looks like it was designed to be quickly swapped without too many tools.

[@michaelardai9703]

I didn't count pins, but it looks a lot like an Amphenol 50-pin telco connector; quite common with multi-line office phones in the past

[@IMCDundee]

Knowing the Bucc, surely the altitude display should have negative numbers...

[@ChipGuy]

You like to fligh high 100.000 ft 🤣Nicely done

[@leusca1]

Maybe you could speak french and add subtitles 🤷‍♂️