Model Rocketry

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Model Rocketry

• Mr. Capella
• Technology Education

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Parts of a Model Rocket

• Nose cone
• Body tube
• Fins
• Launch lug

www.scalerockets.com
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Nose Cone

• The nose cone has a very pointy tip
• The reason for this pointed shape is to reduce
  the amount of wind resistance
• The pointed shape also allows for increased
  aerodynamics

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Wind resistance Aerodynamics

• Wind Resistance is the resistance too movement
  caused by an object moving through the air
• Aerodynamics is the term used to describe when
  something is built to allow for even air flow and
  reduced wind resistance

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Body Tube

• The body tube is the main housing for all the
  rockets parts and systems

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Model Rocket Fins

• The fins are attached to one end of the body tube
  with glue
• the fins help to give the rocket stability in
  flight
• The Alpha kit has three fins

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Stability

• The ability for the rocket to fly in a straight
  upward path when it leaves the launch pad
• Stability is one of the most important aspects to
  ensure a safe flight

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Model Rocket Launch Lug

• The launch lug will be glued at the location on
  the tube marking guide

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Launch Pad

• The launch lug of the rocket is slipped onto the
  launch pole
• Make sure the rocket slides easily all the way
  down to the metal plate
• If rocket slides hard on pole check launch lug
  for obstructions

Launch pole
Metal plate
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Systems of Model Rocketry

• Propulsion system
• Ignition system
• Recovery system

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Propulsion System

• Model rockets use solid fuel engines for
  propulsion
• The area colored red is for lift off
• The blue area is tracking smoke to help measure
  altitude
• Yellow area ejects the parachute

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Parts of the Propulsion System

• Engine mount tube is light blue
• Adapter ring is green
• Engine hook

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Construction of the Propulsion System

• Cut a small slit at one end of the engine mount
  tube

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Construction of the Propulsion System

• Insert engine hook into slit in the engine mount
  tube

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Construction of the Propulsion System
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Recovery System

• The recovery system consists of the parachute and
  the shock cord
• The recovery system allows the rocket to fall at
  a slower speed and a smooth even pace

Shock cord
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Nose Cone

• This section of the nose cone needs to be cut out
  to install the parachute and shock cord of the
  recovery system

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Installation of the Recovery System
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1
3
1. Cut nose cone section 2.Bundle the three
parachute cords 3. Feed the shock cord and
parachute strings through nose cone and tie
into a knot
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Ignition System

• Electrical launch system
• Igniter
• Retainer plug

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Ignition System Igniter

• Electrical connectors are added to both ends of
  the igniter
• Electrical current flows to the pyrotechnic
  (flammable) material to light the solid fuel
  engine

Electrical connectors
www.estesrockets.com
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Igniter installation

• Insert igniter into small hole of rocket engine
• Place yellow retainer plug into hole with the
  igniter
• Push down retainer plug until snug and bend
  igniter slightly as shown

www.estesrockets.com
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Final Launch Sequence
This devise can be used to measure the altitude
of the rocket
www.estesrockets.com
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• Recovery system
• Propulsion system
• Ignition system

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