Dr. Zooch Saturn V - F.G.P. Step 10A Part 4

The heat exchanger dowel sits in a recess on the wide center of the F.G.P. exhaust manifold.
Before the F.G.P. totally dries, make a round recess using the end of the supplied dowel.

I had to wet the end of the dowel for it to press into the drying white glue "putty".

Here’s all five finished nozzles. You are given five nozzles on the card stock wrap sheet.
All have the round dowel end recesses and are ready for Step 10B, the heat exchanger pieces.

Only four are used on the finished, flying model. Make the fifth for a backup if one breaks off on a hard recovery.

Dr. Zooch Saturn V - F.G.P. Step 10A Part 3

The "actual size" drawing in the instructions was a little too long when wrapped around the bell.

The pencil lines show how much my pumps were shortened.

Below the instruction drawing is one of my F.G.P. turbine manifolds ready to be set around and over the seam between the upper and lower shrouds.

Roll the ball into a tapered "worm" on a flat surface using your fingertips.

Leave the center area larger than the ends.

Once again, in the instruction drawing the center of the F.G.P. pump seemed too thick.

Even though I made my exhaust manifolds thinner in the middle, it still looked a little fat.

The F.G.P. is drying as these are being formed. By the time I was ready to wrap it around the nozzle bell, it was too dry to stick to the card stock shroud.

I had to wet the dried glue around the center line. That made the manifold stick very well!

Dr. Zooch Saturn V - F.G.P. Step 10A Part 2

Keep pulling the glue into a ball and roll it round.

You should end up with a ball about 1/4" in diameter.

Dr. Zooch Saturn V Funky Glue Putty Step 10A Part 1

On my first Dr. Zooch Saturn V build, I had trouble making the F.G.P. or “Funky Glue Putty”.
I ended up using some of the “Fix-It” two-part epoxy I’d ordered from Apogee.
Making F.G.P. is like anything else, your first attempts may not be usable. Stay with it and after a few tries, you’ll get it.

The instructions tell you to roll the glue between your thumb and forefinger. I found the glue hard to control as it kept rolling farther away from my fingertips. I never ended up with enough of a glue ball to roll the pump in the correct size.
I had better luck making the F.G.P. in the heel of my left hand.

Start with a drop of glue about 3/8" diameter.
In the end, you will have a 1/4" moldable ball of F.G.P.

So it dries a little quicker, spread the glue out into an even coat on the side of your palm..
Let this sit and dry for one minute.

After that full minute of drying, spread it around again keeping it in the same area as before.
Let this dry for another minute. The glue will turn from a wet, gloss to a flat white surface.

Start to draw or pull the drying glue to the center.
Continued in next post -