Wright State University EGR 191 - Team Fly-In Page

This is not an overnight project.
It is recommended that you get started now! 

The fly-in will be a contest held indoors in a large area such as the Nutter Center arena.
Addition details will be forthcoming as the quarter progresses. Watch for test flying dates.

Teams of four are to build and fly a micro, radio-controlled airplane. 

The plane is to be built as a slow flyer suitable for flying indoors. It is preferred that everyone build the same model.

The E&CS College will provide the receivers and transmitters. Each team is to provide its own airplane.

Here are some url's about micro r/c planes.

http://www.rchobbycenter.com/

slow flyers you can order from local store.
http://www.hobby-lobby.com/slowflyers.htm

http://www.bmichels.com/MicroPlanes.htm

http://www.u-save-bucks.com/ciamodelers/manuf1.html

http://www.semiconductors.philips.com/mcu/applications/rcradio/

http://www.rconline.com/yellowpages/alphabet.html

http://corsair.flugmodellbau.de/files/elektron/KATEGORI.HTM

www.rcmicroflight.com

http://www.geocities.com/CapeCanaveral/Launchpad/2274/electrics.html

http://www.cityfujisawa.ne.jp/~toko/eplane/micro-funfan/

http://www.rcmicroflight.com/plans/tiny/index.asp

http://home.t-online.de/home/e-huber/

http://rcplanet.com/mattsmicroplanes/electrics.htm

http://www.acroname.com/

http://www.hobbypeople.net/

http://www.lynxmotion.com/

http://www.modelairtech.com/planes.html

http://www.rcmicroflight.com/plans/starlite/index.asp

http://www.ezonemag.com/articles/1996/microrc.htm

here’s one you can build from info given
http://www.ezonemag.com/articles/1998/aug/kolibri/kolibri.htm

look at this blimp!
http://www.ezonemag.com/articles/plans/blackeag/blackeag.htm


Update on Dr. Rowley's attempts at building and flying a micro r/c plane.

1/12/01
   I started this week building a Pico-J3-S. It cost $34.95 and included the motor. I found it at:
     RC Hobby Center
     2047 Harshman Road
     Dayton, OH 45424
     937/236-2455
     Store hours start at 11:00 AM
They were very helpful, answered many questions, pointed me in the right directions, and ordered items for me that came in timely. I recommend you do business with them. They may offer you a discount if you tell them you are participating in the WSU Engineering Student Indoor Fly-In.


Build time was about eight hours over three days because of the glue drying time. The glue came with the kit. Had I used instant glue it would have gone much faster. Here is the instant glue I'll use next time.

Please note the name "Super Gold". This is the one to use with plastics. I tried the others and they ate into the plastic without gluing. The "Unglue" is a good idea to have around in case you cement your hand to your chin watching glue dry. Also get some accelerator it really speeds things up.


 

 

 

Here is the plane ready to be transported to the aerodrome. 

This sport is like any other. There are certain fixed costs to participate.

All of the wiring, black boxes, and yellow battery pack is the receiver. It costs about $95.00 and includes the receiver, the receiver crystal, two servos to control the rudder and elevator, and a motor speed controller. The college supplies this.

You will also need a battery charger. There are several options. One is portable, using a lead acid battery with a charging circuit for the receiver. Another plugs in the wall and provides a 2 amp fast charge. And there are inexpensive, slower chargers. I bought the one that plugs into the wall and connects to a battery. Of course I also needed a charger for the lead acid battery. To hold cost down several teams could go together on a charger. Be aware that you may have to modify a charger's output plug to mate to the receiver's battery pack!

There are also some basic tools needed. The instruction manual shows them. I found the following to be inexpensive and very useful. 

 

I also use my pocketknife to trim plastic parts and shave a little on the stick. It is also a good idea to have some Popsicle sticks to help spread glue and some paper towels, newspapers and a plastic container to hold parts.  Useful but not necessary is a small table vise and hammer for bending wire. I'll bet the hobby store has something for this. A box is really handy to hold everything in. If money is no problem then get a fishing tackle box otherwise cardboard works fine. I like to paint cardboard boxes to keep them going much longer.



So here's the plane as of Friday afternoon. Hopefully I'll be testing it next week. Stay tuned.


Wednesday evening, Feb 7, at the Nutter Center arena it flew! Two times very successfully. These were used to adjust the trim and center of gravity. The third flight went well then someone turned a transmitter on that walked all over mine and the plane nose dived into the bleachers. Yes, it was really damaged. Don't know if I'll repair it or build a different one.

In order to get good flight characteristics two thing were done.
  1.  The control rods were put into the upper holes of the servo arms.
  2.  A thread was attached across the top of the wings and pulled tight to cause the wing tips
       to rise up at least 1.5 inches. This increased in dihedral made it much more responsive to
       the rudder. Tape was used to prevent cutting into the wing and to hold the thread. I'll show
       you how.


Feburary 19, 20, and 21 at the Nutter Center arena - Well I repaired it and it has been in the air three more times and crashed each time. I think I have problems with the balance and trim. The first crash weakened the bamboo wing roots which resulting in the wings folding up during the next flight. I replace the bamboo with light weight aluminum tubing which is holding up very well. The next crash wiped out the elevator which was replace by a new one made from a Styrofoam meat tray. The final flight hit the bleachers, sheared a wing in half and messed up the servo mountings. The wing was surprisingly easy to repair. The servo mounts are still being working on.


March 7, 8, 9, and 10 at the Nutter Center arena - I threw caution to the wind and went for it myself. I had four safe flights. The first one was real crazy as the balance and trim were really messed up. I had lots of help from the seasoned R/Cers in correcting them. The second one was much better with a couple of circuits of the arena. The third one I managed a landing closer to me and the forth landing was at my feet. I stopped there while on a good roll. - Yes!