OILY QTY gauges of N88ZL now to be used in the panels of D-ABUD. Now running a 5V stepper motor and the original 5V integral lightning. Look how few components are now involved! Once done correctly I doubt you will ever have to reopen the gauge except for the bulb change. This is a non […]
Category Archives: Instruments
Gauges conversions, photos, how I do it and system descriptions
Finished the EGT indicators. These were U/S units from ebay (one is from N88ZL) and have been converted to Switec stepper motors for cost/accuracy/maintenance/reliability reasons. I decided against switching the original lightning to LED to keep the original look at night. Bulbs are cheap and easy to replace and have between 5000-40000 hours lifetime, more […]
N1 and N2 indicator are basically exactly the same in terms of construction. The major problem here is the vernier dial and the speed at which it is rotating during engine acceleration. Here is an engine spool up table. It shows that the engine can spool up above 50% at 10% within ~0,2 seconds. After […]
After a long search I was able to locate 3 original Lufthansa Bendix Radio Magnetic Indicators used on Boeing 707s! Still missing one but will definitely find that one too.
Vertical Speed Indicator – plain an simple. Original drums and gears removed and replaced with a NEMA stepper motor and a IR sensor for initialization. NEMA is running at 1/16 steps for super smooth and quick needle movements. Stay tuned for upcoming videos of the gauge conversion.