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Bruces Web Site
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Date: 2-21-2013
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Number of Hours: 4.00
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Manual Reference:
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Brief Description: Hub design, controls, wiring schematics
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Rechecked the Hub PC design and made a couple of improvements. Sent in order for 4 where the price point was $47 each. Will be for sale if it works...
Put both sticks in with the correct bolts. Can do now that trim switches are mounted.
Continued design of the electrical stuff. Its slow, looking at manuals, finding manuals, etc. Still debating if to put in an Essential Bus. Since it would be powered by a wire from before the Master relay the essential would be almost directly hooked to the battery. The Master relay is a big single point failure for electric airplanes. My RV-6A has the same feature with a breaker/switch on the panel with a protective cover. It leaves about 3' of unprotected wire in that case, but in the -10 it would have about 12' because the battery is in the back. That would have to have an inline fuse, most likely a fuesable link designed to protect the wire. The wire would be bigger than required and then have a switch/breaker, sized more based on the loads, on the panel. On a dead short to the wire the fuesable link would go, on a short on an essential load only that local fuse would blow and hopefully not the switch/breaker which can be reset anyhow..... However that adds three things to fail in the essential bus line but at least two are passive elements and the switch/breaker are designed for a lot of operations. Sounds better once I write it down. Only adds a couple of pounds and provides enough redundancy.
I have never blown a fuse on the RV-6, even in constuction. Can't make the same statement about my time as the Reno Crew Chief!
No photo, sweat does not make a nice picture.
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