I completed the airframe of my Modular Test Platform this week. It's core function is to allow me to test, repair, and replace each section individually, cutting down on prototyping cost and time.

 

The airplane itself is made from Bluecor aka Fan Fold Foam, and is supported by poplar wooden dowels. These serve two purposes: support the airframe by adding rigidity, and allow for each section to be removed and added as needed.

 

The wing is a Kfm2 airfoil, which has pretty good performance while being very easy to build. I added a little dihedral on the ends of the wing in the hope of gaining additional stability as this airplane, for the moment, does not have ailerons (which I can easily add later as this is modular!).

 

I'm still waiting on my Hobby King order to come in to replace a faulty motor/esc they sent me last time (I actually don't know what the EXACT issue is, it might even be my rx/tx) but when they come in I hope to complete the build and get it in the air.

 

In the end, this is all supporting my five year plan to fly an rc airplane across the United States. See http://www.mygeekshow.com/five-year-plan for the full details.

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Comments

  • As opposed to gluing the motor on you may be better using a small bolt from the front that is locked into place with a washer and nut on the inside. From work on my quad copter I've found that hot melt glue will tend to fail over time with vibration, I used it to attach the receiver antenna to the side of my frame.
  • Hooks: you might be right! I'd hoped that it going through the air would keep it cool enough, do you think that it gets that hot? All the way to the steel mounts? If so, that would be less than good (having the motor pull itself off the airplane).

    In the end, I just want to make a motor section that is quick to be updated with a new motor. I'm afraid the epoxy would permanently leave glue on the motor. What do you think?
  • Moderator
    Your motor Will be hot when running so using hotglue for motor Will not work. Use 5 min eposy instead.
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