DynaStar Rockets LexxJet Manual de instrucciones - Página 3

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8. The inside edge of the small end of the

tailcone may need to be sanded to allow the

engine mount tube to slip through. To do this,

wrap a rough-grit sandpaper around a wooden

dowel or small rocket motor, and sand out the

inside edge of the hole until the engine mount

tube slips easily through it. Try to keep equal

wall thickness all the way around the edge of

the plastic.

If the tube is too loose in the plastic part, don't

worry. This will be ﬁxed at motor mount instal-

lation.

9. Mark a line on the outside of the motor

mount tube 2.25" (57mm) from one end. This

will be the aft end of the rocket. Make this line

about 1/8" (3mm) long as the picture shows.

Take a hobby knife and cut a 1/8" (3mm) long

slit in the engine tube along the line as shown

in the picture. You will insert one end of the

motor hook into this slit.

10. Make a mark 1" (25.4mm) from the aft

of the engine tube Find one of the large green

rings that ﬁts over the 24mm diameter engine

mount tube. Put a thin layer of wood glue

around the engine tube behind the mark you

made. Take the green ring, slide it onto the

engine hook, and then onto the engine tube

until it it up against the mark. (Be sure that

the engine hook remains perpendicular to the

engine tube).

11. Glue the small green engine block ring

inside the front end of the engine mount tube

using wood glue. It should butt up against the

metal engine hook that protrudes inside the

tube.

12. DO NOT USE ANY GLUE ON THIS

STEP! Make a mark 1.0" (25.4mm) from the

front of the engine tube. Find the other large

green ring that ﬁts over the 24mm diameter

engine mount tube. Cut a notch on the inside

of the ring with a hobby knife. Tie the yellow

Kevlar

shock cord around the front end of the

engine mount tube. Now slide the green ring

over the Kevlar and onto the tube (the cord

should nest in the notch). Remove one of the

large centering rings from the die-cut card

sheet. Again, slide this ring over the front end

of the engine mount tube.

Sheet B - P/N 31091

�

Engine Hook Size

Estes D-Engine

Estes E-Engine

1 inch (25.4mm)

"A" Length

2-1/4 inch (57mm)

3-1/4 inch (83mm)

The "E"-size engine hook is not included

in this kit. They can be ordered from www.

ApogeeRockets.com. Select P/N 24049

Cut a notch for

the shock cord.

1/2 inch (13mm)

DO NOT GLUE YET!

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