RV-9A Electrical System

Tuesday, August 23, 2005

Avionics fan and small stuff

My B&C order arrived, so I ran a wire to the hobbs meter. I wired up the compass light to the dimmer circuit. I troubleshooted the fuel gauge light.. just a loose lamp... if it keeps wiggling loose in flight I'll have to replace the socket. I rerouted my pitot tube so it wasn't making a tight bend. I tested the pitot and position light circuits at the wing roots just to make sure they worked. My fuel pump works. Oddly enough, the 2-10 switch used for the master and my wig-wag gets mounted with the keyway up but the other switches get mounted with keyway down.

I mounted my new Lonestar Cyclone avionics cooling fan. I hadn't thought about a cooling fan until I read a post somewhere that the KLN-89B runs hot. I bought a 3-port version from ACS... for what amounts to a CPU fan with ports on it, they are expensive! I hooked up the tubing to the trays. The airflow isn't real equal between the tubes so I used the two highest volume ports for the 89B and 155. I may hook one up to the transponder but I'll have to relocate my fuel warning brain box... and since the transponder isn't in the stack.. I may just leave it alone.

(Time: 1.5 Hours)

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