In fact, the first VTail setup on MultiWii was only a Y4 firmware which is quite the same as a Y6 firmware but without 2 front motor.
So you say it behave right in X4 mode… humm… that’s interesting.
I would have think the rear would have act weird since it’s not flat.
I might have to test here… 
NOT on the Hunter VT500 but on my V Tail Bat Quad from Flite Test. And yes I have flown the Bat Quad also on"Flat Y4" on the Naza without a problem.
Today is the maiden of the Hunter VT500 with the Naza on it using the Quad “X” configuration. I will let you know what happens later in the evening. Failing the Quad “X” set-up, I will try setting it up using cdraptor’s “Y6” set-up
let us know…!
Hey All.
I just finished building a Vtail 500 with the intention of flying it with pixhawk. I did some reading around and saw older posts about needing to do some custom setup and what not. After that I saw more recent posts pointing out there is now a “vtail” frame option in mission planner. There is no picture / diagram to go with it however so I went with the one in lynxmotion pdf.
I calibrated esc’s and radio and compass etc etc. Did the motor test and had them all spinning like I thought they should, proper order and everything. Even did the hand test and it was responding like it should. Well went ahead and tried a take off and it went a bit nuts. Luckily landed safely and I’ll be trying to do some custom configuration now to get it to work since the “vtail” frame option in mission planner is clearly premature or just not directly compatible with these models or whatever. Anyways, just thought I would share.
A noob question here. I saw a screenshot on this thread of someone’s multiwii config, and the image showed a vtail. I have the Hunter Vtail 500 with a multiwii FC (multiwii pro Ez3.0 blacked mag edition) from Ready to Fly Quads. When I hook it up to my laptop and run config it shows a quadx image. It came flashed from Ready to Fly Quads, but I was wondering if there is a way to see what code is currently on the FC? I want to make sure I have it set up correctly to fly a Vtail.
Thanks,
Tim
Hi Tim,
You sure have to flash your board with VTail configuration.
In the GUI you can see the version that you have on your board, If it show a Quad it is flashed for a Quad.
Here are our MultiWii files and tutorial:
Of course, the files will need to be changed accordingly to your board as they are made for the Flip 1.5.
Thanks Eric,
When I bought the board witespyquad.gostorego.com/flight-controllers/multiwii-pro-ez3-0-black-flight-controller-w-gps-option-276.html I clicked on “V-tail” under “firmware” so I wasn’t sure if he loaded a v-tail configuration. I was hoping there would be a way to see what code is written on the board.
Thanks again for your response.
Tim
I Eric,
I have chosen to maiden my VT500 with cdraptor’s set-up first as it was obvious that it will fly as a “Quad Y4” (minus the 2 motors ) under the “Y6” configuration.
Top Left motor is CCW plugged into M3.
Top Right motor is CW plugged into M5.
Bottom Left motor is CW plugged into M4.
Bottom Right is CCW plugged into M1.
Basic Pitch 75% Roll 75% Yaw 50% Vertical 75%
Attitude Pitch 100% Roll 100%
If anyone else have flown this successfully on any other Naza flight configuration please share your set up on this thread . I am finding that I may have to set the gains lower as the tail likes to teeter more than it should when I do verticals, drop outs, or when a gust of wind pushes it aside.
The next flight test will be on the Quad “X” configuration to see how it will performs using the same values as above.
Enjoy the video.
youtube.com/edit?o=U&video_id=GXkWeADinOo
What files need to be changed? I have the Hunter 500 V-tail, the multiwii pro Ez3.0 blacked mag edition flight controller from Ready to Fly Quads. I am using a DX6i transmitter.
Thanks,
Tim
Hi Eric,
Sadly I have not been able to make the VT500 get airborne off the Quad “X” configuration. To my surprise what I achieved on my V Tail Bat Quad from Flite Test I could not duplicate on the VT500 so i will fly it as a Y4 off the “Y6” configuration for now until someone else can report on a successful flight.
My current set-up of Y4 off the HEXA-ROTOR “Y” on the DJI Assistant is;
Top Left motor is CCW plugged into M3.
Top Right motor is CW plugged into M5.
Bottom Left motor is CW plugged into M4.
Bottom Right motor is CCW plugged into M1.
Basic Pitch 65% Roll 75% Yaw 40% Vertical 75%
Attitude Pitch 100% Roll 100%
These settings seems to be a happy medium for me.
Many thanks to cdraptor’s contribution to this thread!!!
The MultiWii file we have which is pre-configured for the VTail is made for the MultiWii MPU6050 board, not the Ez3.0.
Things have to be changed in the config.h tab prior to load it to the board.
Can you give me the link to the product ? The creator might supply the file already done on his website so hacking it to configure it for the VTail might be easy for me.
Here is a link to the board. He does have a dropbox with a number of files on the page. I’ve emailed him to ask what the board was flashed with, but haven’t got a reply back. When I ordered it I checked the “v-tail” firmware option, but when I run multiwiiconf. it seems to indicate that it is configured for a quad-x. witespyquad.gostorego.com/flight … n-276.html
I have added the file for the VTail setup.
Note that i don’t have that board to confirm it’s working.
MultiWii_MEGAEZ3_BLACK_VTail.zip (152 KB)
Hi Eric,
Is there any possibility that an optional landing gear be made 2" longer than the stock units for tall grass?
I will give it a try. Thanks Eric!
Well, everything is possible.
I will put some time to think about it and see what i can come with, Thanks …
DiaLFonZo… I would be in for some kind of added / extended / improved feet / legs / landing gear. Grass being the only terrain I’ll probably ever be taking off from / landing on the props constantly come in contact with the grass. Right now I’m take a wooden board with me to set down for take off, doesn’t help with landing though. Have not tuned / got tight enough control to land in back on the board
Update to my previous post regarding Vtail 500 and pixhawk.
Arducopter now has a basic built in vtail profile. You have to just flash it for a quad x then go into the parameters / config in mission planner and change the “Frame” setting to “4” which is the vtail profile. There is currently no vtail frame image or selection during the initial firmware upload, just have to do it after. Also, in case anyone tries it, my vtail was spinning like crazy on take off. Got in touch with the guy that submitted the code for the vtail profile and he pointed me to a thread for the request in which the dev flipped the rear motors thinking it was wrong as submitted. Turns out it was right and he didn’t have to touch it so I just flipped my rear motor connection to pixhawk (2 and 4) and it worked after that.
Took a quick video and included a picture / notes of the setup in case anyone else could use the info. I think the vtail profile got added in Arducopter 3.1.5 but I was running the latest beta 3.2-RC2. I need to tune it and will make a better / more extensive video later. Was a bit windy and the Vtail was drifting a lot and wanting to climb in altitude a lot but overall it flew really well for not being tuned.
Wow, very nice to see it flying with a PixHawk.
I might have to take some time and do a proper test here one day.
Tall landing… yes i will take some time to see if i can come with something, i understand.
Hello all,
I’m interested in getting into this hobby. I really like the looks of the Vtail copters.
I’m looking to build one of these on a budget. For starters I’ll be looking for relatively easy, stable flight.
I was thinking of getting the Tactic TTX650 tx/rx as sold in the RobotShop. Is this a decent quad radio?
What size motors should I be looking at for stable, but not lazy flight? Any recommendations on a budget friendly brand that isn’t poor quality?
I will probably start off with a 4-in-1 ESC due to budget constraints.
I was thinking of going with the multiwii since there is already support for it on this platform, but I might experiment with the quadrino or others as I get used to the tuning.
Would a traditional quad-x or quad-+ be better for a noob, or is the v-tail versatile enough?
Thank you!
Hi Eric,
Any idea yet on extended landing skids. I also need the rear v-support crash kit as I would like to order them both at the same time to save on shipping.
Keep the landing skid profile the same but extend it 2 inch longer. It will for sure make the Hunter even meaner with a wider stance.
