Hi there, single engine is approx 75 mph with flaps retracted.Sometimes there is a method to the madness and sometimes there is just the madness..
I really wanted to have a look inside my airspeed indicator due to it being solid state rather than purely mechanical. There are plenty of pictures of the insides of traditional airspeed indicators but nothing about these new magic boxes of tricks. I ummed and ahhed for a while about drilling out the rivets. Eventually curiosity go the better of me
It was soon in pieces.
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Having successfully reduced it to parts, I needed a way to hold it all together again. At first I made some replacements for the mounting screws/rivets, but I soon decided I might like to get at the insides again sometime.
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I turned up some additional threaded 'nuts' the go on the backside of the threaded fittings to lock everything together but also being removable. While I was at it, I changed the threading from 4-40 to M3 metric so that all the screws on the instrument panel are now M3. (The MGL instruments are all M3 mounting screws.)
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While I had the ASI open I dug out the sticker sheet I had purchased from aircraft spruce at the same time,
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and with some careful consultation of the flight manual, put the colored arcs in place on the bezel.
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I would also like to add the blue line (single engine best rate of climb) but I cannot seem to find any documentation as to what speed this is for the CriCri. If I find out from somewhere I can now easily open up the ASI to put the sticker in place.