Saturday, October 25, 2014

Estes Patriot Build #2056, Part 4, 24mm Engine Mount

This 24mm mount will have a replaceable Kevlar line.
The small holes are punched for the Kevlar tube. On the right the larger circle is for the engine hook movement.

In addition there are lines drawn for some reinforcement gussets.
This will be a D engine mount, I wanted it stronger than just the two centering rings.


Reinforcement gussets were cut from the excess 3/32" thick wood stock. Cut them longer than needed and sand to a good fit between the rings.
They are cut higher than the height of the centering rings for trimming later.

At the bottom you can see the Kevlar guide tube in place.
Before gluing on the gussets, wrap some electrical tape around and over the engine hook and Kevlar tube.
After the glue dried on the four gussets, they tops were sanded flush with the outside edges of the centering rings.

It's pretty surprising how much stronger the entire engine mount is with the gussets added.
Check the fit in the BT-60 tube before gluing. The gussets will require you to sand the rings a bit for a sliding fit.

Build time:
Assemble Engine Mount = 15 minutes
Add gussetts and sand = 15 minutes
Total build time so far = 1 hour

Friday, October 24, 2014

Estes Patriot Build #2056, Part 3, 24mm Engine Mount

I'll use the heavy card stock rings that came with the kit.
To enlarge it for 24mm engines:
Trace around a BT-50 tube. I used a heavy walled BT-50.

After you trace the line, look at it closely to be sure the circle is centered. If not, erase and try again.
Sometimes it takes a second try to get it right.

Note: There is only one card stock piece in each kit. I am building two Patriot kits.

To get the new diameter fit close, cut slightly inside the pencil line.
The line you traced in the first step is just outside the tube diameter.

With all cutting, don't try to cut through in one pass.
A few lighter passes is better than a hard single cut.
Check the fit on the 24mm engine mount tube.
If it is still too small, widen the hole with some 220 wrapped around a finger.
Sand a little and check, sand and check again.

Build time:
Cut 50/60 rings = 10 minutes
Total build time so far = 30 minutes

Thursday, October 23, 2014

Estes Patriot Build #2056, Part 2, Tube Prep and Gluing


A dry fit of the white tubes showed the tubes weren't cut clean.
There were enough gaps for some edge truing and sanding.

The inset picture shows the same tubes after sanding square.


This is something you should check on any opened kit. It's easier to see bad edges on larger tubes.

On my block is 220 grit sandpaper. It only takes a few passes to knock down the high spots.




I've read posts about the newer red couplers locking up when using the new formula Elmer's white glue. I'm out of the old formula Elmer's!
Before using any glue I got rid of the burrs on the coupler edge.
The top and bottom of the coupler were rounded off.
The inside of the body tube edge was rolled over with a smooth dowel.

This was the first time I have used the new formula Elmer's glue. It helps to know beforehand there have been problems with this glue and rocket construction, the coupler could lock up.
I was prepared to used enough glue and slide the coupler in quickly and smoothly.

I put a fairly good sized bead of the new Elmer's about 3/8" inside the tube. The bead wasn't smoothed out, the excess was not picked up with a fingertip.
With the glue away from the edge, it allowed me to set the edge of the coupler into the tube without contacting the glue.
I smoothly slid the coupler in while turning it up to the pencil line in the center.

I was able to get the coupler in without any problem. But, you could feel how this new glue formula could grab before the coupler was halfway in.

Build time:
Sand tube ends and CA ends= 10 minutes
Total build time so far = 20 minutes

Wednesday, October 22, 2014

Estes Patriot Build #2056, Part 1, Parts

Everybody has built one of these, except me!

This build will be a little different. At the bottom of each post I'll be keeping track of how long I take on each step. These are my personal build times, I tend to take longer on rocket building than most people. I don't keep track like this very often, it's a bigger effort to keep recorded build times.

There will be upgrades.
A BT-60 model at over 21" tall should probably be D engine capable.
You can always drop in a 18mm adapter for smaller fields.
A payload section will be made using the upper yellow tube section.

All the parts:
Yellow upper tube
Nose cone
Parachute with the 'spiderweb' pattern
18" rubber Shock cord
Two Decal sheets
Laser Cut Fins (some extra wood on the sides - hmmm . . .)
Two white body tubes around 6 3/4" long
Red Couplers
Launch Lug
18mm Engine Mount Parts (will be 24mm)


Parts of interest:
The yellow tube is a faded yellow and translucent color.
The nose cone is very good, almost seam free.
These are the tight red couplers that can grab using the new formula Elmer's white glue
Two identical stick on "decal" sheets

Build time:
Open kit and pics = 10 minutes
Total build time so far = 10 minutes

Tuesday, October 21, 2014

Art Applewhite MMX Bic Pen Rocket Build, Part 6, Streamer and Finished




A simple 1/2" wide streamer was taped to the Kevlar cord.
Use tweezers to stuff the cord and streamer into the small tube.

As Micromaxx goes, this will be a high performance model.
Well designed, cheap and easy. It doesn't get much better than that!

Spudnik???




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www.oddlrockets.com
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Monday, October 20, 2014

The "Original" Estes Catalog?

Earl Cagle, Jr. posted this EBAY link on YORF,


An original 1962 Estes catalog.
According to the YORF posts that followed, this is the second "Penrose" edition. The first catalog was produced in Denver.

Look close on the left side to see the Gleda Estes sewing machine binding!

The EBAY link is HERE
















This catalog is considered highly collectible.
You can see full scans of every page - CLICK HERE