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Fri 19 May 2006

Finished the drilling on the cowl side of the brackets. Three locations per side for #8 screws - just #30 clecos at this point.
Then with the cowl full installed, match drilled the firewall locations.
The whole cowl is very solid, however I think I'll need to trim the rear edge slightly more to ease the installation of the hinge pins - too much of a mission at the moment.
Continuing with the plenum diffusers, took a careful extraction process from the molds. The PoP seems to have stayed in one piece, the clay has remained on the fibreglass. The RHS was the earlier mould and it looks like it is too high at the top.
On positive side, it seems to have a nice curve and should work in prinicple.
The LHS is much better, the top half of the diffuser seems to match up well and now the attachment problems start.
The lower edge also need more thought - I think the significant trimming of the baffle floor is going to be needed before hand.
Then back to panel layout / ideas. I'm moving away from the master and ECU switches being crammed into the upper left corner and tried moving the masters & cross feed switch to the cross bar location. Also tried the circuit breaker and switch spacing, one leason learnt is the switch spacing (18mm) that I was planning on using is probably slightly (1mm) too small for the DPDT switches - back to the panel layout!
This is the new plan for the ECU switches - the only problem is the vertical space available for the Angle of Attack LEDs. The AoA could go horizontally, but somehow makes more 'sense' veritcally, I want it in the primary visual scan and don't have a solution yet!
Difficult to see from the photo - the right hand side of the bar seem to be OK layout wise with most of the B buss circuit breakers. The center section will have the switches and possibly the push/pull controls.
Carl Morgan