Friday, October 05, 2007
Amazing stuff
I don't know why I didn't start earlier to play with the instruments I got. Each one works in a completely different way and all of them are fascinating precision devices.
Yesterday I repaired the gyro heading indicator. The rotor of the gyro was stuck because of corrosion. The whole cockpit must have been standing in the rain or something. Everything shows more or less signs of water damage.
The heading indicator ist an amazing toy :-)... It makes a lot of noise since I'm not able to balance the rotor properly, but it works. It runs on 28 Volts DC so it's easy to hook on my lab power supply.
The most amazing instrument until now is the vertical speed meter. Not so much because of how it works but because it is installed inside an vacuum insulated glass jar (picture). I presume this has the function to prevent that thermal changes can alter the reading.
I already know what to do with this glass thing.... it will be a PERFECT tea cup! I already tested it with hot water from the tap. Outside it stays cool like it was empty. I just have to attach some kind of flat bottom to it.
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