The presentation model main airframe tube got the seams filled. The picture shows the thinned CWF applied. The tubes will still get a good shot of filler/primer and sanding to complete the two-step fill.
Even with the heavy walled tubes, you can still get some extra support by sliding in the coupler. This prevents any distortion of the tube when sanding at the weaker fin slot areas.
The engine mount tubes are sanded for better adhesion of the centering ring epoxy.
Here's that "zero end" metal straightedge, no rounded overhang.
It's easier to accurately position centering rings when you can get the ruler edge against the ring wall.
Don't glue the rings on yet. This was just a test fit.
Why aren't all metal rulers made that way???
ReplyDeleteHi Neil,
DeleteI agree! I emailed the Westcott ruler website, they no longer sell this style of ruler.
Hi Chris,
ReplyDeleteDo you have a Level 1 certification? If you don't, will this flight build give you one?
Hi Anonymous,
DeleteI don't have a Level 1 certification, I'm really a low power guy launching up to black powder E motors. Bigger rockets take more storage space than I have. I did launch Enerjet E24 and FSI F100 engines in the mid 1970s. Those were considered high power then.
I should add, the larger builds are going back to Enerjet/Quest for display in their museum. No flights for most of these.
Delete