I have been very busy with work for the last two weeks but I made some progress
I used the 18mm standard engine casing from my fin alignment guide to set the seven thrust rings 2.5” deep into the seven motor mount tubes. That lands them just below the vent holes. With an Estes A, B or C in each mount you would have 1/2” of space left in the mounts between the front of the engine and the centering ring but with the ejection charge well on the Q-jet D16 those fit with very little space there. With Q-jet D-16’s I’m going to remove the ejection charges and plug them. I did not use a thrust ring in the center 24mm mount so I wouldn’t limit any motor length selections.

Motor mount is finished but haven’t glued the forward centering ring on yet. I used Gorilla wood glue for all the bonding. Super strong stuff. I will use a cable mount through the front centering ring same as the original kit. I have some 1.8mm vinyl coated stainless steel cable with 2.2mm double ferrule crimps and a crimping tool to set the loop in each end. I will use 30 min epoxy when I bond the motor mount in the body tube. That way I will have enough time to get a good ring of epoxy ahead of the front centering ring and as I slide the mount in also put a bit more epoxy to be pushed up ahead of the second centering ring to get a good ring of epoxy there too.

I cut 10” off the T80H tube to get the required 24” for the main body tube. That took a LOT of passes and some patience with the vintage #6 X-acto to get through that thick walled tube. I built up a tape ring around the tube and got a perfectly cut tube and didn’t even need to sand it! I still want to coat just the exposed ends of all motor mount tubes and both ends of the body tube with a little thin CA.

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__________________
Steve Naquin
TRA# 677 L2
NAR# 85518 L2
SAM# 0052

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