QModeling XP Series, Instruction Manual

Page: 21 / 27

21
3.
r
Coil the Kevlar Ò Shock Cord forward of the
Snap Swivel Parachute attachment into the Main Body
Tube as shown.
2.
r
To control the descent rate, reef the Parachute
based on the selected engine and the flying conditions.
Reefing a parachute restricts how far the Parachute
opens and thus the decent rate of the rocket. To reef
the Parachute tie the Shroud Lines together in a knot at
the appropriate location.
4.
r
Powder the Parachute with talcum powder.
Softly fold the Parachute and loosely wrap the Shroud
Lines around it
length wise not cross-wise (See
illustration below). Length wise wrapping produces a
springing action helping to deploy the Parachute upon
ejection. Stuff the Parachute into the Heat Shield and
close Heat Shield around it, like a
. burrito
Pre-Launch Check List
1.
r
Select an appropriate 24mm rocket engine.
The table shown are engine recommendations that
have been tested in the XP-RAPTOR. The actual
24mm engine selected from the availably 24mm engine
market is solely the responsibility of the user.
ACTUAL
ENGINE SELECTION SHOULD FOLLOW NAR
GUIDELINES INCLUDING FINAL CONSTRUCTION
WEIGHT AND WEATHER CONDITIONS.
Correct: Length-Wise
wrapping of shroud lines
Incorrect: Cross-Wise
wrapping of shroud lines
Wind Shock Cord
into Main Body Tube
Low Shroud knot
Low Reef Chute
Slow Decent
High Reef Chute
Fast Decent
High Shroud knot
5.
r
Slide the Heat Shield/Parachute into the Main
Body Tube. Coil the remaining Shroud Lines and Shock
Cord on top of the Heat Shield/Parachute. Place the
Main Nose Cone onto the top of the Main Body Tube
making sure not to accidentally capture a Shroud Line
or the Shock Cord.
Stuff Heat Shield
& Parachute
into Tube
Place Nose Cone
onto Tube
Fold Wrap Stuff Close Powder
T
a
lc
u
m
P
o
w
d
e
r
Motor Delay Approx Altitude
C11-3 3 200-300
D12-5 5 500-600
E9-6 6 900-1000
6.
r
Prepare a rocket engine by installing an igniter
per manufacturer's igniter installation instructions (the
illustration shows a typical Estes
Ô
style of igniter).
Engine
Install Igniter Bend
over leads
Install
plug or wadding
to hold igniter
Engine Engine