Cowling Test Fittings during “The Grand Mock-Up” & Beyond
22 June 2013 — Today I pulled out all the stops . . . or should I say I pulled out all the pieces of the build so far. Before I am separated from my project while I spend a year in the Middle East for Uncle Sam, I wanted to get an idea of what this thing looks like put all together.
So I pulled the fuselage out into the front yard, and kept it covered while I collected the other components. Next up was the Centersection Spar which I placed into the fuselage for the first time since I completed it about 8 months ago.
After I got the CS spar & firewall in place, I added both of the wings next. Also, as you can see I had to throw on at least one winglet just to get an idea of how it would look. Although it was a little awkward to get it on the end of the wing so it looked half-way normal, I think I got in the ballpark. Well, and of course we can’t forget the canard… yes, it’s on there too!
Once I got the wings on, it was now time to fill in what gaps I could to make it look at least a little like it had some mass to it. Next came the engine cowlings.
In the next couple of shots you can see how the lower cowling hangs down 4 inches below the stock/plans firewall. Again, since Mike Melvill had built a NACA inlet for his engine air intake the back end of his fuselage–and subsequently the firewall–was 4 inches lower than plans [in essence making the bottom line of the fuselage continue straight until aft of the firewall].
And then the following pics are more close-up shots of the upper cowling.
21 September 2016 — Tonight I finally go that lower cowling mounted so that I could mark up the firewall for trim.
I had to lean way over into the cowling in order to mark the lower line without disturbing the taped-in-place cowling.
I took this shot just to get an idea of what the bottom profile of the plane will look like.
Another thing that I did that is not shown in these pics is I ran a line from one wing TE corner to the other. This let me measure from the back face of the spar to the string to determine the sweep. I determined that I’m only 0.1″ short at the BL23 mark at the very inboard wing, and 0.4″ short on my wings’ sweep over the entire wing span: BL175.6 vs the plans BL 176. Again, not bad and I’ll take it!
Tomorrow,I’ll be heading down south to meet up with Marco and then we’ll both fly to Rough River in his new Long-EZ.
If you’re going to Rough River, SEE YOU THERE!