I do have a few F3B planes in my hangar like the Trinity and Europhia but I decided for practice an electric launch F3B plane would be perfect! The easiest conversion turned out to be a F3B Javelin I acquired a while ago. It did not need much work to re-position the radio equipment to make space for the motor/ESC/battery. The nose is also wide enough to take the Turnigy Glider Drive 840KV motor that I had "in stock" so the decision was made.
I decided to run the motor on 2 x 3S 1300mah packs, the reason I chose these packs were because I could make them fit, I needed the weight to balance the plane and they could supply the current needed. To get more power out of the Glider drive than I normally do I decided on a 15x8 prop rather than the usual 14x8. This produces over 800W (the motor is rated for around 850W) and as it turned out was enough power for a decent rate of launch even if the plane was a bit heavy at 2.7kg.
The first flight was exiting! The plane was a bit tail heavy and a lot faster than my other planes, it turned out to be very responsive and needs to be flown all the time, great fun!
Ready for the first flight!
On the ground and in one piece!
A short video clip of the first launch. Thanks Frank!
I decided that I needed to move the CoG a bit forward and add some color to the wing. The day of the test flight was a dull overcast day and I struggled to see the plane far away!
Ready for the first F3B workshop!
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