Electrical System part 1




The battery box and the 'Hotbox' by Kuntzleman Electronics are mounted on 1" angles between the rudder pedal crosstube and a 1/2" crosstube installed above the nose gear cross tube. The cockpit floor plate will angle up to connect the 1/2" tube and the nose gear crosstube forming a beam that will reinforce both of them. The pipe insulation is temporary to make leaning on the crosstube more comfortable while working up in the nose cone.






The wire shown in the previous photo has been replaced with aircraft grade wire (what was I thinking.....) and pigtails which will connect the hotbox to the a/c circuits are in place. At 'A' is a 5/16" ground lug. The battery and starter grounds connect to the airframe at this point. The hotbox grounds through its chassis. This arrangement keeps current in the airframe to a minimum and should help keep noise down, make the system more reliable and easier to troubleshoot.

The strobe power unit is mounted under the rear seat on lord mounts. One strobe head is on the belly of the plane under this seat mounted on the cross tubes and sheet metal at 'A'. The other flasher is on the vertical stab. Power for the strobes is on a dedicated circuit with it's own ground seperate from the rest of the electrics. There is no radio interference from the strobes.





Foam strips taped to the fin hold the rear strobe head above its mounting position in order to solder and shrink wrap the connections.







Making the connections to the strobe head. Staggered soldered joints were necessary in order to fit three wires through the small grommetted hole in the stab frame.




Rear strobe head mounted. When the smoke gray trim stripe was repainted, the clear part of the lens was masked off and the attractive runaway-teenager blue base of the strobe unit was painted trim color.



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