X-UAV Mini Talon Build Number 4
Introduction - Mini Talon Number 4
On this, my sixth MT build and 4th owned, I have designed and printed a few new parts and decided to go a little lighter. I am using my favorite Cobra motor, folding prop, APM, Mobius, etc, etc, etc. For more information please see my builds for MT#1 and MT#2 at the bottom of this page.
Distributor - BangGood USA
Aircraft - X-UAV Mini Talon
Build Date - April 2017
|Airframe Type -||Top Wing V-Tail FPV Specialist||All-Up Weight -||55oz (1565g) w/ 4S/5200 Pack|
|Wingspan -||51 inches (1300mm)||59oz (1670g) w/ 4S/6600 Pack|
|Length -||33 inches (830mm)||63oz (1776g) w/ 4S/8000 Pack|
|Wing Area -||3.23 ft^2 (30dm^2)||*Wing Load w/5.2-4S -||17.0 oz/ft^2 (52g/dm^2)|
|Motor -||Cobra 2221/16-940kv||Max Continuous Power (4S) -||375 watts continuous (4S)|
|Propeller -||9 x 7 Aeronaut Cam Carbon Folder||Max Prop Power -||325 watts @ 2550ft ASL|
|Static Thrust -||1150 @ 2550ft ASL||*Static Thrust/Weight -||0.73|
|Battery Type -||4S1P Lipo||Battery Capacity -||5200mah/10C|
|In flight efficiency -||TBA||Flight Time -||TBA|
|COG -||60mm @ Wing root (Stock)||*With the||5200mAh pack|
The following are some of my selected components with links to some of my favorite vendors.
For power on this build I have chosen the Cobra 2221/16-940kv. For an ESC, I am using a HobbyKing Blue Series 40A with extra Low ESR capacitors added.
- For more informaion on setting up a pusher folding prop - How To - Set-Up a Pusher Style Folding Prop
- Battery - Multistar 4S/5200, 10C
Each prop run is ten seconds at wide open throttle with a battery starting voltage of 4.1v per cell (16.4v). This test is repeated three times and the results are then averaged to mean values for direct comparison.
For flight control I have chosen another APM 2.8 from Ready to Fly Quads. It is very inexpensive and in my experience completely reliable.
- w/Arduplane 3.4
For radio gear I am using my standard DragonLink V2 system. I have made a new Antenna holder for the DL dipole that puts the lower element burried inside the lower fin.
|Antenna mount print parts|
|Mounted on MT4|
For an OSD I am again using the Micro MinimOSD which is reliable and easy to set-up with the APM. A big advantage is the size as I am able to servo-tape a 4 pin servo connector on top of the APM case and simply plug the OSD into the connector. I am using the MinimOSD Extra firmware version r800 because it has been ultra stable for me and has the display features I like.
- w/Firmware r800
For the video downlink I am using an RMRC 1.2/1.3G VTx with a DragonLink video dipole. I will either run 200, 400 or 800mw depending on where and how I am flying. For an FPV camera I have selected a Fatshark V2 700tvl unit because of its size and decent performance.
Airframe Build and Assembly
For this build I developed a few new 3D printed parts to make component installation even easier and a little lighter than previous builds. Here are pics of the new components:
|Canopy mounts and VTx saddle|
|Canopy gear loaded in|
The canopy I printed for this build has a custom cut-out in front for the Fatshark FPV camera and my standard 4 bolt mount on top for either a cover, a lightweight pan and tilt or a plain Mobius mount plate (shown). The Mobius mount plate can be raised on stand-offs if necessary.
|Canopy installed with Mobius mount plate and Fatshark FPV camera|
|Loaded up with the Mobius Mini|
|Optional bolt-on Pan and Tilt|
|Inside showing rear deck, APM PM mount and APP connector mount|
|Rear inside showing ESC raised deck and wire-tie clips|
|New NACA style vent which is contoured to fit the hatch|
As per usual I mounted my front and rear ABS skids and battery strap well.
My new printed gear deck has new threaded deck clips which are smaller and easier (I think) to set-up. It is still big enough for a standard APM FC and also a Matek Duo dual output regulator underneath.
As I have done with all my MT builds, there is a USB extension plug which, through a small cut-out in the fuse, makes it very easy to plug the flight controller into my laptop without having to open up the plane or move wires around, etc.
On the tail linkage I used a similar set-up as on MT#1,2 & 3. That is I used spherical rod ends to deal with the high miss-alignment caused by the stock geometry which puts the linkage at an angle to the control surface. The one difference on this build is I used 2-56 (.072") threaded rods and Dubro Kwik-Clips instead of soldered brass couplers.
Nothing new or special here. I added 1" (25mm) of 3 mil laminate to the leading edge. Linkage is the same as the elevators and servos are Emax ES08MA (Analogue).
It's always tough for me coming up with a color scheme that is different and isn't too ugly :)
|You have to have a patch!|
|Decals and Paint|
|Another top view|
- Video TBA
- Mini-Talon on RC Groups
- Mini Talon Noses
- X-UAV Mini Talon Build Number 1
- X-UAV Mini Talon Build Number 2
- X-UAV Mini Talon Build Number 3
Project 3D Print Files
The following are the 3D print ZIP files shown in this build.
Some of the Vendors I used for this project