I've been looking over good old DWG 36A, thinking through where everything should be routed. Not just brake, fuel, etc, but electrical back to the tail. My overall feeling is there is going to be way too much to fit in the center tunnel from the center bulkhead forward to the panel. I'd be looking at two fuel lines, brake lines, pitot, static, AOA, and *gobs* of wiring, no? And I'm not feeling too thrilled at the two conduits of wiring in the baggage area tunnel, possibly interfering with the elevator pushrod. So here's my thoughts, comments or corrections appreciated:
Brake lines: Run along the sidewalls, probably through a grommet in the forward bulkhead, to the bottom skin port. This would be behind the Classic Aero side wall, and beneath the gear leg weldment cover. I'm using the Beringer flexible steel-braid-covered hose.
Fuel lines: Can't really do anything here. Intake and return lines still going through forward center tunnel.
Static line: Pretty sure this is still standard. Reading through other posts, everyone drills a random hole through the seatback brace bulkhead. I might use the covered-up tooling hole that is just slightly below where I've seen everyone usually putting the static hole. I'm assuming there would be similar holes near the top of each of the center bulkhead's left legs, under the longeron, and possibly also in the forward bulkhead (somewhere underneath the three rivets for the subpanel?).
Pitot/AOA: I read elsewhere this gets routed through the outboard-most set of bushings in the center bulkhead, then run parallel to the forward center bulkhead, and forward in the center tunnel with the fuel lines? What about running them along the sidewall like I'll be doing with the left brake line?
Wiring conduits: This is what really gets me. Is there really enough space for two wiring conduits, amidst everything else in the center tunnel? Also going back, in the baggage tunnel without interfering with the elevator pushrod or bellcrank. Working back to front, I've already drilled both the manual trim cable and optional mirror wiring holes in F-708 & F-707 bulkheads as per spec. I've got the mirror static line hole in the upper right side of F-706 and forward bulkheads (but I read somewhere from Mel that the ELT wire shouldn't go here, as bulkheads could cut the ELT line?). What I'm thinking is to cut two wiring conduit holes in the F-706 bulkhead in the next bay outboard from the center tunnel (I don't like the plan's idea of drilling the hole through both the bulkhead and baggage rib flange, and making the conduit run right up against the two bellcrank / tailcone support ribs). The conduit would run forward, diagonally, through holes I'd cut in the two inner baggage ribs' webs, and then run forward through the tunnel. This would also help with wiring the two COM antennas, which I'd be placing in those baggage bays where the conduit crosses through the ribs.
I'm still stuck in my head whether two conduits are going to fit in the center tunnel without interference, much less still be enough for all the wiring (4 antennas, lights, magnetometer, servos, etc etc etc).
Sorry for the long stream of consciousness post. Am I overthinking the wiring runs? Where else would you run wiring conduit, so they're under the carpet / feet going from the center bulkhead forward to the panel?
Brake lines: Run along the sidewalls, probably through a grommet in the forward bulkhead, to the bottom skin port. This would be behind the Classic Aero side wall, and beneath the gear leg weldment cover. I'm using the Beringer flexible steel-braid-covered hose.
Fuel lines: Can't really do anything here. Intake and return lines still going through forward center tunnel.
Static line: Pretty sure this is still standard. Reading through other posts, everyone drills a random hole through the seatback brace bulkhead. I might use the covered-up tooling hole that is just slightly below where I've seen everyone usually putting the static hole. I'm assuming there would be similar holes near the top of each of the center bulkhead's left legs, under the longeron, and possibly also in the forward bulkhead (somewhere underneath the three rivets for the subpanel?).
Pitot/AOA: I read elsewhere this gets routed through the outboard-most set of bushings in the center bulkhead, then run parallel to the forward center bulkhead, and forward in the center tunnel with the fuel lines? What about running them along the sidewall like I'll be doing with the left brake line?
Wiring conduits: This is what really gets me. Is there really enough space for two wiring conduits, amidst everything else in the center tunnel? Also going back, in the baggage tunnel without interfering with the elevator pushrod or bellcrank. Working back to front, I've already drilled both the manual trim cable and optional mirror wiring holes in F-708 & F-707 bulkheads as per spec. I've got the mirror static line hole in the upper right side of F-706 and forward bulkheads (but I read somewhere from Mel that the ELT wire shouldn't go here, as bulkheads could cut the ELT line?). What I'm thinking is to cut two wiring conduit holes in the F-706 bulkhead in the next bay outboard from the center tunnel (I don't like the plan's idea of drilling the hole through both the bulkhead and baggage rib flange, and making the conduit run right up against the two bellcrank / tailcone support ribs). The conduit would run forward, diagonally, through holes I'd cut in the two inner baggage ribs' webs, and then run forward through the tunnel. This would also help with wiring the two COM antennas, which I'd be placing in those baggage bays where the conduit crosses through the ribs.
I'm still stuck in my head whether two conduits are going to fit in the center tunnel without interference, much less still be enough for all the wiring (4 antennas, lights, magnetometer, servos, etc etc etc).
Sorry for the long stream of consciousness post. Am I overthinking the wiring runs? Where else would you run wiring conduit, so they're under the carpet / feet going from the center bulkhead forward to the panel?