Relationshipware StratoLauncher IV Assembly Instructions

Tools required for assembly and items needed to launch rocket:

An adjustable wrench (or a 14mm wrench), 4mm & 5mm hex wrench, and
Phillips head screwdriver. A plastic (PET*) soda bottle, nose cone, water,
and air source (bicycle pump, foot pump, scuba tank, or an air compressor).
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Disclaimer: Relationshipware LLC and its members are NOT
RESPONSIBLE for any injury or loss of property to any
person suffered while operating this water rocket launcher.
StratoLauncher

Take Inventory of 17 parts

1 - Aluminum manifold w/black cable stop
2 - 1/4" NPT male plugs
1 - 125 PSI safety relief valve
1 - Schrader tank valve
1 - Hose Q-Release
1 - Black clamp-on cable stop
1 - 1/4" stainless steel tube
1 - ABS plastic base | 1 - SS Phillips screw
1 - Brake cable | 1 - lever | 1 - PVC handle
®
1 - StratoFins Set | 1 - black nozzle
1 - Red water fill funnel | 1 - black reducer

Assemble Launcher

With the black cable stop facing you screw
brass parts into the manifold beginning at
the upper left and work clockwise. If no red
sealant, wrap 3 Teflon tape layers around
part threads first. Screw in black hose con-
nector on top. Attach clamp-on cable stop
over hose connector & align. Do not over
tighten clamp as connector will bind /break.
Optional, wrap Teflon tape around threads
of 1/4" SS tube to keep water out of the air
chamber below before screwing it in place.
Mount assembled launcher onto the ABS
base with the SS Phillips screw. Stretch
out brake cable & place fat barrel nipple
into the brake lever slot, thread through,
and secure with silver slack adjustment
ring. Insert other end of cable housing into
manifold cable stop, push hose connector
down & place nipple into clamp-on cable
stop. Remove excess brake cable slack by
ring or screwing in Phillips screw on lever.
Increase or decrease brake cable slack by
raising or lowering clamp-on cable stop.
Copyright © 2017 by Relationshipware LLC
®
IV Assembly Instructions
Soda bottle nose cone is required or rocket will not fly straight:
Create the nose cone by starting a cut with a razor blade or box cutter
about 4" down from the cap and just above the label of a plastic (PET*)
soda bottle. Finish cutting around the bottle with scissors in a straight line.
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* Polyethylene terephthalate (aka PET) is a thermoplastic polymer
resin of the polyester family that is used in soda pop bottles. Seri-
ous bodily injury could result from using any other type of bottle.

Check for Leaks

Before heading to the launch field, check
that all seals do not leak. Add a cup of wa-
ter to the bottle. Place bottle onto the
launcher & press down until it locks with a
loud click. Pressurize to 80 PSI with pump
& see if any water is escaping around the
threaded holes of the manifold. If so, pull
the ring on the relief valve to release pres-
sure, than tighten the leaking fitting(s).
Relief valve slits should face sideways to
avoid spraying into eyes when it releases.

Upgrade Part Tips

Wrap 3 to 4 layers of Teflon tape clockwise
around threads with threads facing you;
insures that tape won't come off while
threading into hole. Air pressure gauge &
mini ball valve need to be aligned to face
toward the top or angled slightly to the
front. More wraps of Teflon tape may be
needed for these 2 parts to properly align
on the manifold. Water will run off better
when gauge is installed at an angle and
will read better when launcher is tilted.

Assemble Accessories

Attach brake lever to PVC handle if sepa-
rate. Insert black reducer into collapsible
funnel. See next page for assembling the
StratoFins and creating a nose cone from
a 2 liter soda bottle. Screw black nozzle on
to StratoFins or your homemade rocket.
Replacement Parts
Replacement parts, upgrade kits, videos,
and future accessories can be found at our
website.