The Twin Boom Easystar
Remember the crash of the old Easystar?I have had the old pieces of that Easystar just lying around for quite a while now, and every night when I go to sleep I can see the pieces lying on my shelf. But now, after many nights of thinking of what I could do with it, I finally got an idea. I will not share with you just yet what it is, but soon you will find out.
What would you do withe these pieces?
This is an experiment, I’m going to try to get an Easystar that don’t look nor fly like an ordinary, everyday Easystar.
I’ll try to push the envelope and expand my horizons to speak.
To do that I’ll need carbon fiber, glue, a new motor and a different propeller.
Two 10*8*500 mm carbon tubes should do it.
A Turnigy 35-30C 1100kv motor with a 10*5 prop should be something to start out with. Here it is compared to a 6” prop that I had mounted on this Easystar before it crashed.
I went with the approach of gluing the carbon tubes to the tail.
To hold the carbon booms to the main airframe I chose to make a mount of 3 mm plywood. The booms will be fastened with screws which gives makes me able to take the airplane apart if I would like to.
I’ll use epoxy to glue the plywood to the wings.
Testing the mounts.
I used my hot wire I chopped of the tail.
I made a simple motor mount out of 3 mm plywood. The angel of the motor is the same as the original.
Wow it’s ugly at the moment.
FASST antenna tubes in place. I want the best reception as I can hence the “performance before look”.
Speed controller now occupies the place where one of the old servos use to be.
Didn’t your servos come with 1 meter of cable? Mine hither, so I had to solder on new ones.
All Easystar’s need a larger rudder, this one is no exception.
Mono coated and DU-BRO hinges.
The rudder in place along with the tail rudder servo.
The elevator servo in place.
Cables tidied up.
The tail needed some cosmetic work after the amputation. It does not look good, but it looks better.
Linkage.
Out in the wild.
It’s not a beauty, but I can give it a makeover once it seen some sky.
Servo cables tidied up.
The only thing I need now is some calm weather so that I can unleash the beast so that it can rip up the sky.
The Twin Boom Biplane Easystar is born!
If it’s worth doing, it’s worth overdoing!
After crashing my FPV Easystar again, I decided to give it up and sacrifice the parts to feed this monster.
I hope to get 20% more lift by placing an extra pair of Easystar wings on top of the stock pair at the hight of one wing chord.
Balsa is nice.
All the supports in place.
I used my hotwire cutter to roughly cut the wing holder of the body of the old Easystar.
A new camera-pod.
Glued on.
The top wing in place.
Done!
This is without a doubt the ugliest plane I have ever seen!
We’ll see if it make it up by being great in the air.
Will their be glory or disaster?
Only time will tell...
Disaster!
Today I decided to maiden the TBBEZ*. Unfortunately the wife was away and all my friends were at work so I had nobody to film it for me. But the weather was to good and I didn’t want to waste a perfect afternoon by not flying as much as I could.
The first trouble came when I tried to get the plane into my Renault Clio 1.4. Don’t get me wrong it’s a great car but when you have to spend 10 minutes trying to wiggle a airplane into it made me dream of a bigger car. In the end I got the plane to fit at the same time as myself and I put the pedal to the metal and scooted of to the nearest field.
At the field I did a range-check and did the long version of the preflight check to be sure that everything was spot on, and it was! Time to throw this baby bird out of the nest.
I took the absurd-looking plane into my hand and gave it full throttle and gave it a gentle toss.
This was the shortest flight I have ever had. The second It left my hand it made a crazy tight loop and smashed right into the ground!
Both carbon tubes shattered, the wings tore at the mounting of the booms, both top and bottom wings got tore and dented, prop broke, camera-pod broken, pan servo broken and body tore at several places.
This was the lamest crash I have had. What an anticlimax!
When knowing the results I now see what went wrong;
- The vertical CG was to high with the camera, video TX and battery on the top wing.
- The motor angel combined with high thrust.
Well see what happens next...
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