Live cht xxx

01-Jul-2017 10:07 by 8 Comments

Live cht xxx

Before the first flight I will install red baffle seal material at all of the baffle penetrations for wires, tubes, etc. After everything is finalized in a workable configuration I will seal the seals with Dow 736 RTV.

There is a spider web of stuff down below the engine between the engine and the firewall.6/27 I have one place up on the left side of the engine to add some rubber and I will be done with the "riveting on rubber" iteration of the development process. I have two central bottom pieces of baffling that overlap the bottom fuselage skin that have to be modified to provide a vent for the heated air dump (from the heat muff when the cockpit heater is not in use) and the oil cooler.Basically, I plan to separate the baffle trailing edge from the skin by 1/2" and close in the sides. It is all buttoned up and I will fly it in the morning.Have to back off and work through this more carefully. 6/19 I went out to the airport last night after the air show was over and looked at my oil cooler installation.The nice neat flow conduit with gentle curves, a rubber shock absorbing link and an aft slanting port into the narrow channel in the area of the cowl outlet that I had dreamed up is very appealing but space limitations and engine mount obstructions make it virtually impossible.I have angle bracket and platenut tie points already installed on the back of the baffling.

Many configuration details have to be worked out as I make the struts.It starts straight down then curves back to the lip formed by the bottom of the firewall and the lower fuselage skin.I have read that this lip is a surprisingly draggy feature (may or may not be true).So far I have spent 108 hours on this mod development.6/15 Well the metal work is done and it came out very well.I am well into closing the holes in the baffles with high temp rubber (silicone) strips but the first was a bit crude.Then I have two attached side baffles that extend forward and outward from the center component to the cowl side and bottom (inside surface of course).