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Hints and Tips - Flea

overdrive.jpg (4840 bytes) white_25x10.gif (830 bytes) The Flea is a simple model in some cases (no engine mount kit, just an engine block) and a bit sophisticated at the same time (need to cut out your own fins).  It is a good first or second choice for a model rocket kit.  The Flea ranks 2nd in cost being slightly more expensive than the OverDrive

You can find a detailed description of the Flea kit here.

This list provides you with some information that can help in the assembly and launch of the Flea

  • When cutting fins it is important to make sure that the grain of the wood is parallel to the Leading Edge of the fin.   This is identified in the instructions and on the fin pattern, but warrants pointing out again.
  • When cutting, use a straight edge to assure a clean straight line.  Use MANY passes of the knife.  Do NOT try to cut all the way through in one pass.  When cutting WITH the grain, the wood will cut quickly and cleanly.  When cutting the other fin edges, it will take more passes of the knife and result in a slightly more ragged cut.  This can be corrected with sand paper.
  • The Flea uses a body tube that is the same diameter as a motor tube.  Meaning that the motor tube and body tube are one in the same.  In this model you must recess the

engine block by pushing it into the model with a  spent motor casing or similar item.  For our educational bulk packs we include a complimentary tube that is used for this purpose (the 2.75" long brown tube)

  • Being such a narrow model, it is extra important that the shock cord mount be glued in as flat as possible, flush with the inside surface of the tube.
  • The Flea does not make use of an Engine Hook for positive retention of the motor.  Instead you must use what is known as "Friction Fitting" of the motor.  You test fit the motor and if loose (most often), you apply a short wrap of masking tape around the middle of the motor and reinsert.  Repeat until the motor is VERY snug in the rocket.   Lastly, you will notice that fins of the Flea are mounted slight above the   bottom of the rocket.  This provides you with space to place a wrap of masking tape around the end of the motor and the end of the body tube to further secure the motor in place.

If you have any additional questions, please do not hesitate to contact us directly.  Our goal is to help you be successful and to have fun with your group!  You can send inquires to:

FlisKits, Inc.
Education Dept
6 Jennifer Drive
Merrimack, NH 03054

or send us an email at:



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