It shouldn't be, there's no differential thrust set up, just basic throttle output controlling both motors. It shouldn't be a calibration error in the ESCs either, as they're using DShot protocol and don't use any calibration. The varying RPMs is likely Arduplane managing altitude, it uses throttle and pitch together to manage speed and altitude using TECS, or "Total Energy Control System"
Hey wuts up man, I ordered the swordfish rth version with gps and radiomaster 2.4ghz with walksnail avatar had pro. I’m new to fpv and your setup is the best I’ve seen on TH-cam with a stable flight and configuration. Do you have a spread sheet or something on steps to make mine fly as yours? Again I’m new to all this. I plan on using inav for this.
Super video , can you show me you servo info? I will make it my self , but i don't know anything about this ... So can you post a picture about you sero mount , your walksnail mount and your sero info . Sorry if my english is bad ( i'm french😅)
Mr Pirate, always appreciate the uploads, especially on the new Swordfish! Your uploads in HD really changes the experience (and may help costing me a grand or so in the near future, lol) The hunting you're fixing makes me wonder about two twin-tractor iNav planes I just maidened; a Delta Ray and an Airloader. Especially for the Delta Ray, which has elevons and no physical rudder, I was hoping for more differential thrust in the stabilized modes, but afraid that if I change the default iNav yaw weight for the motors beyond the default 0.1, I'll introduce yaw hunting or wag. As it is, on default mixer settings in iNav 6 for a no-tail plane with two motors, there's so little yaw on my Delta Ray that yaw is useless in Angle or Horizon, until I switch over to Acro or Manual, then I can flat-spin the thing as there's so much yaw! Would you have any advice on how to introduce more differential thrust in Horizon or Angle modes, without affecting the yaw of the non-stabilized and navigation modes? In a previous life, this Horizon plane had epic yaw control in it's Safe mode, which I'd like to mimic in brushless form. The Airloader acts quite normally, yaw-wise, but I believe as a result of the giant rudder on it, rather than the mixer setting of 0.1 for yaw on the ESC's, but I defer to your experience. Like a big Eyas without the amazing landing gear, this thing can eat miles, albeit slowly. Oh, and the ability to hold a stupid amount of batteries, in case you want to find out what happens when your goggle batteries die.
I wonder if Walksnail's encoder has a bias for throwing more of its data budget at green stuff over brown stuff. Both of our feeds really blur the dirt fields, but the green ones look nice.
From the videos I have seen, changing the battery pack has affected the blockiness of the grass. One video has it, and other one not, same setup. Also in walksnail discord they said that 1S VTX have this problem at 3.7v, but not if used at 5v. So I would speculate this could be related to noise in the power supply.
I just finished building a Swordfish with the Walksnail V2 VTX and the pan servo shown (thanks for the servo info). The single antenna used on the V2 VTX ends up at about the same height as the camera. Not sure if this will cause problems with video transmission; have not flown the plane yet. I ordered the taller HGLRC antenna as a possible replacement to the stock antenna.
I flew with the stock antenna on the V2 transmitter on my AR Wing Pro, and found that it didn't perform as well as a taller antenna. I swapped it for a RushFPV Cherry and had better performance. That's not to say the stock antenna is "bad", but I think just getting the antenna up higher helps like you said.
I'm still a novice at best with Gyroflow, and only used it a couple times for the videos... lol I just sorta plugged in the video and gyro files and used the defaults, with only minor tweaks until it "looked right", by trial and error. I know I saw a good video on Joshua Bardwell's channel about Gyroflow, specifically talking about the Walksnail Pro Camera.
I am certainly enjoying the Swordfish, it's a fun little plane that flys well. I'd consider the Reptile Dragon 2 to a bit in a larger class. It's a bit heavier with more wing area, and a higher lift airfoil. It's not quite as efficient, but will carry more battery to make up for it, although it ends up heavier. They're both fine planes if you're looking for a twin though.
You could try doing RC over Mavlink with the Crossfire which would let you change parameters from a laptop connected to the Crossfire's TCP server. It's not the best link in the world, pretty slow actually, but it might be worth a shot instead of throwing an RFD900 in there.
I’ve also tried without a lot of success to get mavlink over crossfire. Depending on the configuration, the best I could get ended up with mission planner indicating a 50% packet loss rate, bench to bench. The rc link is great but the mavlink connection is false advertising. It’d be great if the HD systems could accomodate a small amount of serial data.
How would you use a RFD900 on Crossfire? Aren't the freqs too close together? I've used them on 433 and 2.4 and they worked very well. Would def be interested in using them with 915. Can you specify what part of the spectrum you want each system to operate within? Maybe that's a way to keep them from stepping on each other?
@@austntexan I wouldn't think they would work well together for that reason... lol If anything you might get by with a 433MHz telemetry radio. I don't know what kind of range you'd get from the ones available though, never really looked into them much. Personally I've used Dragonlink where I needed long range telemetry, and had R/C and serial link over the same system. On my smaller builds using Crossfire I've just settled for the limited telemetry you get with Mavlink emulation in the Crossfire module. It's enough to track the plane on a map in Mission Planner but not much else.
Hey. Can you tell us what is the pan/tilt you are using? I just bought a pair of walksnail v2 VTX and I'm looking for one I can use with them. Thanks in advance.
I have a couple of small planes with inav still on them, but haven't flown them in a while. I honestly enjoy learning as much as flying, and I doubt I'll ever learn everything Ardupilot has to offer, which is a big part of it's appeal for me... lol I did find the Swordfish flew pretty good on inav 6 while it was on there though. Someday I'll revisit it and set up another plane to catch up with inav.
@@bonafidepirate So its all rudder that was making your yaw wander. Thought it might be the ESC's trying to fight each other maybe. Looks like you got it all sorted out. Great build
It's a 270º servo. You need an extended PWM range to get the full travel with it. I set up the servo output to use 500-2500uS, where a "standard" range is 1000-2000uS. Normal range will only give you 180º. This is the servo I use - www.electromaker.io/shop/product/9g-270-metal-servo-with-analog-feedback-15kg
I can't understand why your flights are sooo smooth like there is no wind. If I fly my swordfish in the same conditions my fish is bouncing all over the place. Only if the wind come towards me I have a little bit of your smoothness. Where is the trick?
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What an awesome area to fly in! Thanks for another great video! 🔥🔥🔥
Thanks Mark! The same scenery can get boring after a while, but it's a great place to fly when testing things and tuning.
Heading drift....Could it be some rpm difference between the motors?....They definitely are changing rpm looking at the props ..🤔😳😳😳🇬🇧
It shouldn't be, there's no differential thrust set up, just basic throttle output controlling both motors. It shouldn't be a calibration error in the ESCs either, as they're using DShot protocol and don't use any calibration. The varying RPMs is likely Arduplane managing altitude, it uses throttle and pitch together to manage speed and altitude using TECS, or "Total Energy Control System"
Hey wuts up man, I ordered the swordfish rth version with gps and radiomaster 2.4ghz with walksnail avatar had pro. I’m new to fpv and your setup is the best I’ve seen on TH-cam with a stable flight and configuration. Do you have a spread sheet or something on steps to make mine fly as yours? Again I’m new to all this. I plan on using inav for this.
Super video , can you show me you servo info? I will make it my self , but i don't know anything about this ...
So can you post a picture about you sero mount , your walksnail mount and your sero info .
Sorry if my english is bad ( i'm french😅)
Mr Pirate, always appreciate the uploads, especially on the new Swordfish! Your uploads in HD really changes the experience (and may help costing me a grand or so in the near future, lol) The hunting you're fixing makes me wonder about two twin-tractor iNav planes I just maidened; a Delta Ray and an Airloader.
Especially for the Delta Ray, which has elevons and no physical rudder, I was hoping for more differential thrust in the stabilized modes, but afraid that if I change the default iNav yaw weight for the motors beyond the default 0.1, I'll introduce yaw hunting or wag. As it is, on default mixer settings in iNav 6 for a no-tail plane with two motors, there's so little yaw on my Delta Ray that yaw is useless in Angle or Horizon, until I switch over to Acro or Manual, then I can flat-spin the thing as there's so much yaw! Would you have any advice on how to introduce more differential thrust in Horizon or Angle modes, without affecting the yaw of the non-stabilized and navigation modes? In a previous life, this Horizon plane had epic yaw control in it's Safe mode, which I'd like to mimic in brushless form.
The Airloader acts quite normally, yaw-wise, but I believe as a result of the giant rudder on it, rather than the mixer setting of 0.1 for yaw on the ESC's, but I defer to your experience. Like a big Eyas without the amazing landing gear, this thing can eat miles, albeit slowly. Oh, and the ability to hold a stupid amount of batteries, in case you want to find out what happens when your goggle batteries die.
I wonder if Walksnail's encoder has a bias for throwing more of its data budget at green stuff over brown stuff. Both of our feeds really blur the dirt fields, but the green ones look nice.
From the videos I have seen, changing the battery pack has affected the blockiness of the grass. One video has it, and other one not, same setup. Also in walksnail discord they said that 1S VTX have this problem at 3.7v, but not if used at 5v. So I would speculate this could be related to noise in the power supply.
@@marianofpv That's an interesting thing to test for. Wonder if my video would improve if I threw an extra cap in after the BEC.
I just finished building a Swordfish with the Walksnail V2 VTX and the pan servo shown (thanks for the servo info). The single antenna used on the V2 VTX ends up at about the same height as the camera. Not sure if this will cause problems with video transmission; have not flown the plane yet. I ordered the taller HGLRC antenna as a possible replacement to the stock antenna.
I flew with the stock antenna on the V2 transmitter on my AR Wing Pro, and found that it didn't perform as well as a taller antenna. I swapped it for a RushFPV Cherry and had better performance. That's not to say the stock antenna is "bad", but I think just getting the antenna up higher helps like you said.
Please consider showing us your settings on Gyroflow because I can't get a decent result.....lol.....🤔🤔😳😳😀🇬🇧
I'm still a novice at best with Gyroflow, and only used it a couple times for the videos... lol I just sorta plugged in the video and gyro files and used the defaults, with only minor tweaks until it "looked right", by trial and error. I know I saw a good video on Joshua Bardwell's channel about Gyroflow, specifically talking about the Walksnail Pro Camera.
@@bonafidepirate I must be doing something very wrong then..lol...Yours is the smoothest stabilised footage I've seen by some margin ...🤔😏😏😀🇬🇧
My Atom Dolphin also wanders with Ardupilot.
Great videos! Aways enjoy your flights. What an awesome area to fly, do you farm also or just happen to live near these farms.
Hello Keith, looks like you are loving swordfish. Of the similar size, whats your favorite? swordfish? dragon?
please let me know!
I am certainly enjoying the Swordfish, it's a fun little plane that flys well. I'd consider the Reptile Dragon 2 to a bit in a larger class. It's a bit heavier with more wing area, and a higher lift airfoil. It's not quite as efficient, but will carry more battery to make up for it, although it ends up heavier. They're both fine planes if you're looking for a twin though.
You could try doing RC over Mavlink with the Crossfire which would let you change parameters from a laptop connected to the Crossfire's TCP server. It's not the best link in the world, pretty slow actually, but it might be worth a shot instead of throwing an RFD900 in there.
I've tried a few times in the past to get a "real" mavlink connection over Crossfire, it never goes well once you leave the workbench.
I’ve also tried without a lot of success to get mavlink over crossfire. Depending on the configuration, the best I could get ended up with mission planner indicating a 50% packet loss rate, bench to bench. The rc link is great but the mavlink connection is false advertising.
It’d be great if the HD systems could accomodate a small amount of serial data.
How would you use a RFD900 on Crossfire? Aren't the freqs too close together? I've used them on 433 and 2.4 and they worked very well. Would def be interested in using them with 915. Can you specify what part of the spectrum you want each system to operate within? Maybe that's a way to keep them from stepping on each other?
@@austntexan I wouldn't think they would work well together for that reason... lol If anything you might get by with a 433MHz telemetry radio. I don't know what kind of range you'd get from the ones available though, never really looked into them much. Personally I've used Dragonlink where I needed long range telemetry, and had R/C and serial link over the same system. On my smaller builds using Crossfire I've just settled for the limited telemetry you get with Mavlink emulation in the Crossfire module. It's enough to track the plane on a map in Mission Planner but not much else.
Hey. Can you tell us what is the pan/tilt you are using? I just bought a pair of walksnail v2 VTX and I'm looking for one I can use with them. Thanks in advance.
Love these flights, Pirate!
Are you still flying anything with Inav?
I have a couple of small planes with inav still on them, but haven't flown them in a while. I honestly enjoy learning as much as flying, and I doubt I'll ever learn everything Ardupilot has to offer, which is a big part of it's appeal for me... lol I did find the Swordfish flew pretty good on inav 6 while it was on there though. Someday I'll revisit it and set up another plane to catch up with inav.
Battleship at 19:08
Are you using differential thrust on this bird? Thank you for the video
No differential thrust, just basic throttle output running both motors together.
@@bonafidepirate So its all rudder that was making your yaw wander. Thought it might be the ESC's trying to fight each other maybe. Looks like you got it all sorted out. Great build
I have a question how you manage to get all that movement on the pan axis from your servo?
I believe is just a matter of having a 180º (or more) servo connected to a full range channel.
It's a 270º servo. You need an extended PWM range to get the full travel with it. I set up the servo output to use 500-2500uS, where a "standard" range is 1000-2000uS. Normal range will only give you 180º. This is the servo I use - www.electromaker.io/shop/product/9g-270-metal-servo-with-analog-feedback-15kg
@@bonafidepirate thank you very much!!!
I can't understand why your flights are sooo smooth like there is no wind. If I fly my swordfish in the same conditions my fish is bouncing all over the place. Only if the wind come towards me I have a little bit of your smoothness. Where is the trick?
I think the trick is camera stabilization :)
I don't see any stabilisation.
There's no camera stabilization. ;) Just a well tuned Ardupilot. (Well tuned, apart from the hunting on yaw that I haven't solved yet... lol)
It flew similar well on your Inav-Setup.
He flies mostly at dusk. During the day, there's enough heating from the sun to cause little thermals which really bounce these planes around.
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