Cheap Prototyping

by dershan | July 6, 2016 | (4) Posted in Just Fun

Hi guys,

This article is my first and it is about how I build my version of FT Tiny Trainer, FT Sparrow and also my own wing design.  I was not able to find foam board suppliers in india and was not able to buy from any other country.  So I thought of building the aircrafts out of card boards and similar items I had in my house.  I had made many prototypes of my own design using paper for afordability but it lacked flight charactiristics.  So I tought of building one proven design to study how to design planes. So that I had build this tiny Tiny Trainer.

At first I printed the plan from Flite Test on an A4 paper and used it to build my mini Tiny Trainer.  It glided very well.  I used magnets to balance my glider and it was also usefull for hanging it in my wall.  I flew it as many times crashed it many times.

 

The above image shows the real scale of Tiny Trainer.

After multiple flights and crashes my aircraft was finally beaten up so I reinforced it with pen refils and some tape.

This is my FT Sparrow model.

 

And now this is my own design.  I made this protoype using cardboard and tape and for protecting and balancing the wing I used a ruler.

And thanks to Flite Test in inspiring more people to the art of flight.

The use of cardboard helps me to build and fly prototypes to find and adjust the aircrafts profile and to find the balance of the aircraft at a lesser coat and it is also very fun to fly also.  Also, use of cardboard and scaling down the aircraft also helped me to cut down the build time and alowed me to conduct more flight tests to correct the balance and effects on my airframe.

So thats all for my first article, I hope you all liked my fun project.

COMMENTS

ewlie on October 5, 2016
Great to see what you were able to build with cardboard
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dershan on October 19, 2016
thanks
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ccdman on November 5, 2016
BTW, Polystyrene slabs are available in India - I recall the brand name was "theremocole" in teh old days. Betcha you can build fairly large, strong repairable models using that, bamboo skewers and packing tape.
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ccdman on November 5, 2016
You are resourceful! Keep doing it, this may be what remember most fondly, because it is almost too easy to build models elsewhere, where most parts are easily available. It reminds me of the fun I had doing the same thing in the 50's. Though there was one hobby shop "India Hobby Centre" in Calcutta, the limited items sold then were far too expensive.
You might want to try launching your gliders with a catapult system using rubber bands - that can be a lot of fun. Hope to see more of your creations here!
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hotbrass2005 on October 3, 2016
This is fanastic. I would love to build a sparrow that size and power it with a micro brushed rotor and linear servos to make an actually rc version. Thanks for the inspiration!
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dershan on October 3, 2016
thanks to you too.
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WORMSS on October 19, 2016
I wonder if a small solenoid (electromagnet) would be strong enough to be used as a mini linear servo ??? Though, you may know of some mini linear servos that can be used even better..
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dershan on October 19, 2016
hi,
i have made these as chunk glider's.And i haven't made a RC version.
https://www.youtube.com/watch?v=YXdiKd-ZZM0
The above link shows how "lipo muncher" made a micro RC plane with small solenoid (electromagnet) as linear servo.
And i found this in hobby-king http://www.hobbyking.com/hobbyking/store/__11735__HobbyKing_Ultra_Micro_Servo_1_7g_for_3D_Flight_Right_.html
And microflight.com sells magnetic actuator.
http://www.microflight.com/Online-Catalog/Actuators-and-Servos

thanks
x3d0c

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Cheap Prototyping