Warbler UAV – Scratch-built FPV Platform

They say imitation is the sincerest for of flattery, and in this case, the creators of the Talon UAV should be extremely flattered. Introducing my latest FPV platform, the Warbler UAV. Needless to say, it was heavily inspired by the Talon UAV. After some sketching and planning, I decided my try building a similar plane, a pusher V-tail type specifically for FPV. Build time was around 10 hours.

It was built using Adams Readi-board, or Dollar Tree foamboard, a carbon fiber rod as a wing spar, plywood, balsa for the ailerons, hot glue and reinforced packing tape. Here are some additional specs:

  • Motor:¬†Turnigy D3536/8 1000KV Brushless Outrunner Motor
  • ESC: 50 AMP Hobbyking Blue
  • 4 9g metal gear servos
  • 9 x 5 APC Props
  • 3,000 4S Turnigy LiPo

The overall dimensions are:

  • Wingspan: 50″
  • Wing chord: 8″
  • Fuselage length: 30″
  • Weight: [TBD]

The next step is to install a flight controller and the rest of the FPV equipment. Stay tuned for more FPV videos using the Warbler!

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B is for Burbank – FPV Flight

One of my FPV goals was to fly around and take video of the big letter B in the foothills of Burbank and today I’ve met that goal!

My flight times are about 12-15 minutes on 2 x 2,200 3S lipos, on my scratch-built J-Twin airplane (for more information about it click here). I’m using my FrSky Taranis and and extended range receiver, the new X8R and I had no problems with RC range. I was having some static and at around 1KM on my video feed, as I’m using an ImmersionRC 5.8 ghz 600 mW video transmitter.

 

 

route-m

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J-Twin: Scratch-built FPV Platform

Introducing the J-Twin, a twin-motor airplane I designed and built specifically for FPV. I took it for its maiden flight today and I behaved amazingly well, just a click or two of aileron trim and it was all set. The center of gravity is approximately at 1/3 of the wing chord and it didn’t present any negative tendencies.

The plane is built using Adams Readi-board (dollar store foam) and balsa for the ailerons with reinforced packing tape for strength. The wing breaks down into 3 sections and it was built using the Armin Wing technique (from Ed, Experimental Airlines).

Dimensions:

  • Wingspan: 60″
  • Length: 36″
  • Wing chord: 6.5″

Powertrain:

  • 2 x Turnigy D2630-11 1000 KV motors
  • APC 9 X 6 props (counter-rotating)
  • 35A H-King ESCs

RC:

  • FrSky X8R receiver
  • APM 2.5 flight controller
  • MinimOSD

FPV:

  • ImmersionRC 5.8 Ghz 600 mW Video transmitter
  • Fatshark RVC922 video goggles with built-in 5.8 receiver
  • GoPro Hero 2 for recording and video out.

Stay tuned for a flight video.

Photo Gallery

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cautionwing

Scratchbuild: The CautionWing

I just finished building my version of the FliteTest FT Versa, I call it the CautionWing. It comes together very easily, just a bunch of straight lines and its made out of my favorite material: dollar foam board. I’m using a FrSky 4 channel receiver, 2 9-g servos and its powered by a 3,300 mah 2S lipo, along with a 30 amp ESC and a Turnigy 2,200 KV motor swinging a 8 x 5 prop. It shall be maidened soon! Stay tuned of flight videos and more footage.

If you want to build your own, just follow the guides below, courtesy of FliteTest.

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Quad-Glider Hybrid?

I’ve had an idea for quite some time now and right about now seems like the right time to execute. I’m pretty sure others have thought and built something similar to this, but I think I can do it quite well. The idea is to build a quad and airplane hybrid, like the picture above. A standard glider design with a pod fuselage and a twin boom configuration, elongated in the front to acomodate 4 motors and props pointing upwards and the achieve proper center of gravity.

These are my initial thoughts and materials:

– All foamboard using the Experimental Airlines’ Armin wing and fuselage tube design. I’ve build triangular tubes and those seem to be the way I’ll go.
– KK 2.0 for control of the quad portion
– Mixing with switches utilizing my Taranis and OpenTX
– 1000kv motors for the quad portion, swinging 9″ or 10″ props.
– Forward propulsion using a 2,200 kv motor and a 6 x 4 prop.

Stay tuned for updates!

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WEC Mark 2 – Test Flight

This is the second version of the WEC (Wooden Ecilop Clone). I improved the landing gear and streamlined the wiring by using a Quattro 20AMP ESC. The flight controller is an APM 2.5. I am using a 4-channel Frsky receiver in PPM mode soldered directly onto the APM to eliminate a lot of wiring. I am very happy with the performance of this machine. The next step is to test the new gimbal I designed, but first I need a new GoPro, my old one stopped reading/wiring SD cards.

Here are some additional specs:

Motors: DT 700 from Hobbyking
Receiver: FRSKY D4R-II
Transmitter: Turnigy 9XR
Battery: 2 X 2,200 Turnigy 20C 3 cell lipos in parallel.
Props: Gemfam 11 X 4.7 SF
APM 2.5 (Arduflyer 2.5)

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SR-71 Blackbird – Scratch-built Maiden Flight

This is my latest scratch-built project, an all-foamboard SR-71 Blackbird, in its NASA livery. The plans were downloaded from RCGroups [click here for the link to build your own]. Construction was straight-foward and took about 3 hours. I used 2 sheets of black foamboard bought from Office Depot. Here are some additional specs:

2 x 9gram servos
2200 kv 2826 Turnigy Motor
– 6 X 4 APC prop
30 amps ESC
1,300 mAh 3S lipo, 35C discharge

Future enhancements:

As you can see in the video, the plane wing-rocks at high alpha manouvers so I’m going to install a second generation 3-axis gyro from OrangeRX. I also ordered a couple of 4 cell 1,000 mAh batteries for additional speed. Stay tuned!

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