Category Archives: Electric
This is another glow to electric conversion. I had seen this exact kit converted before and just copied what he had done exactly. This is the World Models P-51 kit. The specifics on the model are as follows:
|World Models P-51 Kit|
|Maxim N32-13Y brushless motor and controller|
|MEC 4:1 Superbox gearbox|
|15×8 wood zinger prop (not pictured, but works better than the MAS)|
|22 x RC-2400 cells|
|Flying weight is 8 pounds|
The conversion to e-flight was fairly simple. All that was required was to cut a hole in the top of the fuselage, construct a battery box, and build a motor mount suitable for an electric motor.
|The battery box is a simple piece of 3/32 birch ply with some velcro straps to hold down the battery pack.|
|The motor mount was a bit more tricky. It is laminated pieces of spruce, built up from the firewall of the plane to hold an Maxim motor mount. Notice there is a place on top of the mount to hold the speed controller.|
|The radio gear is mounted per-instructions, however, notice I am using a separate flight pack instead of using a BEC for the radio.|
Total Construction Time = It took me about a month to get this one together, and get all my modifications right. So, approx, 2 weekends, and a bunch of weeknites fiddling with it. The kit comes as an ARF for .40 gas, and I really wanted the conversion to be nice.
P-51 Mustang Videos
Here is my first Twinjet. I painted it up to look like the Blue Angels.
I got tired of hand launching it, so I thought I would add retracts to it so I could ROG takeoff.
The additional weight of the retracts made the plane underpowered, so I added cobalt motors.
Here are the vitals on my first Twinjet:
|Multiplex Twinjet kit|
|Twin Maxx Products 4014 cobalt motors|
|Twin APC 6×3 pylon props|
|Robart 1/2a mechanical retracts|
|10 x Sanyo CP-1700 cells.|
The retract conversions were fun…but, they totally changed the flight dynamics of the plane. After many flights, I eventually had an accident where I ground-looped the plane, and totally screwed up the airframe. Several months later I yearned for the stock Twinjet, so I built a 2nd one.
Vitals on this Twinjet:
|Multiplex Twinjet kit|
|Twin speed 400 motors|
|Twin gunther props|
|8 x RC-2400 batteries|
|Home made decals using Photoshop and my inkjet printer.|
Total Construction Time = A couple of evenings during the week. Took me just as long to make the decals as it did to build the plane.
Here is my first DAW Extra. I had a few problems getting it to fly right, mostly due to sloppy construction techniques. I started out with the speed 400 motor, and eventually went to a 480 because it was gutless.
Here are the vitals on the blue extra:
|DAW Extra kit|
|Graupner speed 480 BB Race|
|8 x Sayno 600AE batteries|
|Castle creations 40 amp speed controller|
|APC 5×5 prop|
The blue extra had lots of flights before eventually meeting the ground at a steep angle too many times. My primary problem was I would only get about a 2 minute flight with that hot 480 motor. So, I built a brand-new one using the lessons learned from the first.
Here are the vitals on the yellow extra:
|DAW Extra kit|
|Hacker B20-15L motor with 4.4:1 gearbox|
|Jeti 40 opto brushless speed controller|
|APC 9×6 slow-fly prop|
|8 x Sanyo 1050 NiMh cells|
With this brushless setup, I now get 5+ min flights depending upon how much throttle control I execute, and the plane can do just about any aerobatic move in the book…except hover. Does excellent knife edges, and spins. Only major accident I had with it was I did an inverted flat spin, and could not recover. Luckily it landed in high-grass and was not too damaged.
Total Construction Time = 2 full weekends plus a few hours during the week. The kit comes as a box of wood and foam. Lots of shaping, carving and gluing to put it together.
The Attack 20 is a glow to e-power conversion, of a kit from World Models. I had seen several similar conversions done to this kit, so I new it work work once I converted mine. It was an attractive conversion because this kit was available at the local hobby shop for only $80. I bought an MEC Turbo-10 motor at a Rancho San Antonio swap meet for $5, so I new I could setup the plane inexpensively. Here are the final vitals of the plane:
|Attack 20 Kit|
|MEC Turbo-10 motor, with 4:1 MEC Superbox|
|12×10 APC e-prop|
|10 x RC-2400 NiCads. Also flies well on Panasonic 3000 NiMh’s.|
|50amp high-rate ESC|
I flew this setup in the plane for almost 18 months. The Attack absolutely screams with this motor setup….literally…it makes a screaming noise in-flight that really gives you a feeling for it’s power. To get the most power out of the plane, I run the motor with the timing advance about 20 degrees. I got tired of changing out brushes in the Turbo-10 motor from burning them up. A brush kit new from MEC is about $5. You can go through alot of brushes the more advanced your timing is. I finally switched to a Hacker B40-8L with a 4.4:1 gearbox on it, in order to stop brush maintenance.
Total construction time = 3 or 4 evenings