Monday, March 27, 2023

Estes EAC VIPER #0820, BT-55 Upscale, Part 10, Fin & Launch Lug Gluing




The rear fins are glued .35" from the end of the tube. Two fins are centered around the engine hook.
.35" was pencil marked in one location. 
For consistency, I wrapped some cardstock around the tube at the pencil mark. The other marks were made against the cardstock edge.





I do two-step glue fillets.

On the left is the first Titebond Original wood glue fillet.
The dried fillet shown is a bit rough.

After that dries, a second fillet is made using Titebond Quick and Thick glue.

GOTCHA: The upper short launch lug is glued .35" from the top lip of the body tube.

Look close at the picture. 
There's a problem with the purple wrap band decal. It runs into the upper lug.
If I were to build this model again, I'd set the upper launch lug at least 3/4" below the top of the tube so I could do a complete wrap of the purple band.

GOTCHA: Look at the ESTES AEROSPACE CLUB decal running down the body. There were two name stickers on the sheet, I mistakeably drew up the longer sticker. While I used the longer decal in this build, the PDF was corrected for the shorter length decal. 




Here I'm rounding over the edges of the launch lug glue fillets.
This was glued in place before I realized the lug would be in the way of the wrap decal.

1 comment:

  1. Popped over to the JimZ site to take a look at the instructions. It appears there were some changes to the instructions when they switched from balsa nosecone to plastic nosecone.
    The instructions for the balsa nosecone version at step 9 simply states "Glue the pieces next to the alignment line in the positions shown," but no exact measurement is given. The illustration appears to imply that the rear piece is even with the back of the fins (i.e. 1/8" from the back of the body tube), and perhaps the front piece is placed similar distance from the front of the tube (i.e. 1/8").
    The plastic nosecone version in step 7 does give the position of the launch lug pieces as 1/4" from the front and 1/4" from the rear.

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