Atomrc Swordfish
HTML-код
- Опубликовано: 12 апр 2023
- My experiences so far, with the Atomrc Swordfish. bit.ly/3JPibp8 (Use code "BONAFIDEPIRATE" for $10 off!)
Hammer Antennas - amzn.to/3mxqOMu
Walksnail - bit.ly/walksnailfpv
STL for VTX Tray - www.printables.com/model/4432... or www.thingiverse.com/thing:594...
Pan servo - www.electromaker.io/shop/prod...
__
Patreon: / bonafidepirate
Huge thanks to my current Patrons:
Werner B.
Douglas M.
tripplewhopper
Robin B.
Lauren R.
David H.
Kevin W.
Josh Z.
A.J. S.
Silvio F.
nadieselgirl
Reindale H.
Henning K.
Adi
Clay Q.
Time Chaser
Julian B.
Sean M.
LAFlyer1
ctx fpv
Craig B.
Peter W.
Steve R.
Jim K.
Caroline T.
MidgeFPV
Mark W.
Channel Members:
Doug McPheters
100SteveB
Spartan 329
Todd Loomis
Silvio Franco
Werner Berry
jdmkramer
Martin keilloh
Stephen Thorpe
Vernon Silvers
ken payne
burrefpv
Join this channel to get access to perks:
/ @bonafidepirate
You can help to support my channel by using the affiliate links below when making a purchase:
Banggood - bit.ly/2EAo4XZ
eBay - ebay.to/2r7k3mb
Amazon - amzn.to/2AptzV2
Foxeer - www.foxeer.com/?u=499
Caddx - bit.ly/CaddxBFP
You can also make a donation if you wish to do so at the following link:
Support my channel and my efforts to bring you better content, every little bit helps! paypal.me/keithluneau 
Наука
quite clear and beautifull footage with great moments.
And really stable plattform.
That's the best built fpv plane I've ever seen. I am impressed with the entire set up and love that camera view! Awesome job!
Thanks, I do like this plane!
I love that view too - and with pan it's brilliant. Looks like a lovely platform. Thanks for sharing! Ringo
Thanks! I really enjoyed flying it, and looking forward to getting more airtime with it in the future!
The camera view set up I like also it give it more of a cockpit feel as if you are in the plane nice flight
I know different people like different things, but I'm personally a fan of this view too... lol
Great flight with narration. Love the technical description. totally agree with Arduplane preference.
Thanks Spike! I'm sure this will be a great plane with Arduplane as well. I'm enjoying getting a look at inav 6 for at least a few flights right now, it's an improvement over earlier versions for sure. I know how well AP can fly a correctly set up airplane too though, and looking forward to seeing how this one does when I do make the switch.
Hey, nice video. I'm very jealous of how insanely calm and smooth the air is where you fly, that is extremely rare here in Ireland. Regarding the pitch bobbing issue in cruise. This is something I reported a couple of years back when I was flying the Mini Crosswind a lot. You might already be aware that this issue only seems to be experienced on twin tractor planes like the Swordfish, MCW, Albabird etc. In the end we believe that the main cause of this is incorrectly tuned rates in iNav. I've managed to get rid of this issue by running autotune and you need to pitch at full deflection for as long as you can in 1 go. Do this for a while and then see how cruise goes 😃
Which font are you using? I've just got Walksnail to try and my Sneaky FPV Sphere font has letter M's as the AHI instead of dots... so it looks like MMMMMMMMM 😅
I like seeing the plane I'm flying in real life too.
Another great video! You're inspiring me to do what you do. My Penguin is all set up with Inav 7.0.
I also like to look at my plane while flying, very nice set up.
What an awesome flight! The sky was incredible. I am looking forward to getting my second flight in soon, however winds are pretty heavy and storms are in the forecast. Thanks for a great video and all your input!
Yeah I'm not too disappointed that I had to wait for a break in the weather, since it worked out for some nice views when I did finally get to fly it... lol I'm looking forward to hearing how your next flights go!
I will definitely keep you posted! I should have everything ready to go by first part of next week. Weather again has been a factor with winds and forecasted storms.
My swordfish was just delivered today 5 minutes before I walked out the door.. 😂 #stoked #fpv #dvsfpv
Wow, best plane and OSD setup I have seen so far ... amazing, with an average of 5 A at around 40 mph (66km/h) that is very economic ... and from what I have heard this thing is so silent, you don't bother anyone when not flying very low, thanks to the twin setup. I often see s drastic offset and delay between the actual horizon and the sensed horizon, but this one is spot on.
And the beautiful light around sunset gives the technical perfection another artistic layer.
Thanks! The artificial horizon is always synced when viewing the live feed with Walksnail. Most of the videos you'll are made from the DVR recording with the OSD info overlayed onto it after the flight using one of the software tools available, it's the intended way to do it and what most people do... lol From what I've seen there's always sync issues, not sure what's causing them but several people have pointed it out. I'm recording the actual live feed so I get the same thing I see while flying, including the synced AHI.
Perfecto and very nice to watch.
Thanks for sharing 👍
Hey mate, definitely not too long or boring.
Definitely informative and interesting.
Thankyou!
Thanks! I know not everyone likes the longer videos or has the patience (attention span?) for them... lol The average view time on this video is only 7 minutes long right now. They don't know what they're missing! :p
@@bonafidepirate I've just ordered a dolphin as a build then will be buying a swordfish by the end of the year as a cruiser, will be heaps of fun!
Always love your videos mate, very entertaining and I love your indoor setup..... I wish I had space around my house that I can do the same!
That was a lot of fun to watch while you spoke about the plane and it's set up. It was like hanging out in the den talking shop except we got to watch a new plane with a new camera placement which I like. I wasn't sure about it when the video first started but the more I watched the more I liked it. Have you ever done a live stream where subscribers could ask you questions about your planes, setups, etc?
I saw Andrew Newton's video with a DJI camera mounted in the same spot, and liked it a lot so I wanted the same... lol I haven't done a live flight in a loooong time. There was a group of us on RCGroups that would do them occasionally, and it was always lots of fun. It was tough to get good internet back then though, especially out to a flying field. Cell service wasn't what it is now... lol That said we were mostly just flying close range stuff on 72MHz radios where there wasn't a lot going on. I usually had someone with me reading comments. Now I'm not sure I'd like the extra distraction while flying farther out. lol
Crossfire telemetry is like flying with frsky😂
Beautiful flying, i bought the swordfish after i viewing this video. Thankyou ❤
Cool flight!
Thanks!
Love the camera viewpoint mate, liked it when Mr Newton first did it. I have the new giro camera on my old Ranger G2, also on a 270 Deg pan servo...Weather has prevented me flying it, but forecast is improving....🤔😳😏😀🇬🇧
Yeah I think Andrew's was the first I saw with a pan servo mounted up there, and I loved it. It's quite convenient too with the VTX bay right there, it just all works out. I bet you'll like that setup when you get it in the air!
The "porpoising" looks to me like the throttle controller in cruise is driving a phugoid oscillation. I say this because the climb rate is oscillating with the "porpoising" so it's not a short period mode oscillation. It's very fast for a phugoid oscillation, but this is in comparison to typical oscillation periods for full size aircraft. To fix it, I'd suggest taking an onboard flight log and looking at the elevator and throttle signals relative to the porpoising (since the airspeed and climb rate controllers are unfortunately necessarily coupled). Adding an airspeed sensor or switching to ardupilot is probably also a good approach to fixing this. Without the airspeed sensor the FC has to wait for the GPS signal to suggest what the airspeed response to throttle is, limiting how fast you can control airspeed with throttle.
Nice air when you can get it. Good work.
Great opening photo view (0:36) sitting out on the runway with hanger in the background. Such a clean looking build (2:57). For initial maiden and flights, this seems to be such a locked in setup. Don't think I saw any tuning/triming being done.
Regarding proposing, at 17:45, when changing between cruise and angle modes, seeing throttle changing a couple percent. (variability overlaps, but max/min range for each differs)
Looking (zoomed) at tail as cruising, it doesn't appear that ruddervator servos are moving. (??)
Generally adding weight to a plane (36:30) just requires it to fly faster to achieve the same efficiency. Sailplanes add weight to increase penetration into headwinds. Only downside is climb rate might be a bit lower, and landing speed a bit higher.
Nice hack (tip) to refresh OSD via panning. :)
If you do, seeing the same aircraft with either INAV, and Ardupilot could be interesting.
Could you please do a video on the ground equipment etc that you use to make this magic hapen. I am new to FPV and am doing homework on what to buy in the future.
Very nice- nice place to fly, too! Is all the onscreen info provided by the AtomRC equipment? And do you see it in your goggles automatically? Or is there some special hookup you need to make between their board and your video Tx?
Brilliant video. Gonna get one. First video I watched of yours was with the skyhunter I believe. Mins still going lol.
My Skyhunter is still airworthy too. It's been a while since I've flown it, but there's no reason I couldn't take it down and fly it again any time... lol I've thought about pulling all the electronics and re-building it with more modern stuff a few times, but never got around to it. I have enough other planes to keep me busy, and kind of like the nostalgia that is has in it's current form lol
INAV only seems to experience the altitude hold bobing effect on twins.
I managed to mitigate it on a Binary, using all the pitch2thr settings, although not completely.
I wondered if it has to do with the thrust line, verses the vertical CG with twin tractor prop ?
Interesting. I hadn't really noticed the correlation before. Could be something to it! I haven't set up a ton of planes with inav or spent a lot of time tuning them, apart from when Marc helped me dial in the Eagle, and that one did fly rather well. To be fair though, it's a great flying little plane even without a flight controller. Kinda like this Swordfish but more "trainer like" with some built in stability.
man, I am confused now lol, I come from box drones and just getting into fixed wing and want to do some semi-long range but have fun too, dolphin or swordfish? Thanks for the videos I am learning a lot!
really great review! and the quality of walksnail is fantastic! would be nice if you would share your inav settings (dump) !
I haven't really changed anything meaningful from the one you can download from Atomrc, apart from some personal preferences like modes and OSD layout, etc. I haven't autotuned or anything. If I do manage to fix the nose "bobbing" when alt. hold is active I'll share that I guess.
Is there any good tutorials so i can do this on a costume built plane? Like electronics and programming tutorial?
Love the video, can you please share your power train setup, kv size prop size etc, cheers
It's all the stock components that come with the PNP, RTH, and RTH-FPV variants of the Swordfish. I used a 4S1P 3500mAh Li-Ion battery.
the 21700 cells are only 68g ish each where 18650 are roughlt 47g each, so a 21700 pack is only 80g roughly heavyier than an 18650 pack and if you got the higher capacity lower current rated ones it will still fly well and for a long time, where 18650 2p is like 400g vs 280g so its worth considering, i used to assume they would be heavier
Anyone know if there's an HD camera switcher that will allow switching between 2 or more HD cameras on the same VTX? Then you can have a main view then a secondary view -- like at the nose of the plane for full unobstructed view of the ground, etc. Or even a zoom view.
It would have to be some kind of board that switches multiple cams to one cable into the VTX. Then it takes an RC signal to control which camera selected for input into the VTX.
In my analog FPV days, I had a 3 camera headtracking setup: 1) main view 2) rear view and 3) a 4x zoom view for checking out ground targets up close. Would be nice to have this in HD now but the digital signaling and protocols might be problematic for a physical switch.
This is the look I have been trying to find!!! What type goggles do you use? That's all that's missing!!! Great video and keep them coming!
I actually prefer to fly with a monitor instead. I wear prescription glasses and always have one issue or another with the goggles I've tried.
@bonafidepirate I just have one more question for you. Does this plane have an auto leveling feature? And yes I'm new to the flying part of this hobby but the flying you do is what I want to do.
Fantastic! Working on my first fixed wing build coming from FPV quads. Could you please link to exactly which Walksnail model you are using in this video? Thank you!
It's the "Avatar HD Micro Kit" caddxfpv.com/collections/walksnail-avatar-system/products/walksnail-avatar-hd-micro-nano-kit?variant=39936740163683&aff=59
Beautiful skies, I bet you'd come close to an hour with a 3s2p pack, but the difficulty of packing it in might make the 4s1p 2170 pack the better choice
Yeah I think a 21700 would be a good fit for it. 4S2P could work, though it may need some weight in the tail to balance it. I really wish there was another little pocket molded in the tail with a tunnel for wiring out to it, between the tail fins. I'd move the GPS back there for some tail weight and even more separation. I thought about cutting one in myself, but I always hate butchering up a new model, especially a nice looking one like the Swordfish... lol
Very nice and clean build! I can't seem to find silicon pin header wires like the one you used for what I am assuming is the WalkSnail system, on UART2. Do you have a link to them?
I don't know of any ready made. I have some rolls of small silicone wire and a box of connectors and some crimpers. I make my own cables most of the time... lol
Excellent upload thanks for sharing. Sorry if this has been asked what Font are you using on the OSD ? is it as special download or pack ? thanks
It's a custom font from Sneaky FPV. I modified one of his a bit, and he was kind enough to make it available too. It's just for Ardupilot right now, but you can find it at his page here - sites.google.com/view/sneaky-fpv/home Look in the Walksnail section for Ardupiot> Ardupilot> Community and you'll see it there.
camera must always be located where pilots would be located so you can with pan tilt look out at the wings and tail and always see the nose of the plane.
Can you please explain some little about connection walksnail vtx to F405 navi. Are you using cable 6pin from UART5 (dji interface) to 4 pin walksnail (V1 or V2) connector, or connect it with different way ? I am new happy owner of walksnail and swordfish and now searching elegant solution for interconnection. Thanks in advance
Hey great vid, definitely getting the RTH version. What are you using for the pan servo control? Via transmitter or goggles?
I use one of the sliders on my radio (Radiomaster TX16S)
Quick question, the stock vtx WS antenna .. how bad are they ? I see you switched, I'm wondering what the difference is and it's it's worth it thanks
I flew the Esky Eagle with the stock antennas a bit before replacing them, they worked OK. I did see a little improvement with the RushFPV Cherries I put on there. I think just getting them higher up and less obstructed by things in the plane helps as much as being a better tuned antenna. These Hammers I used on here seem a slight bit better than the Cherries. I ordered another set to try on the Eagle for a more direct comparison to see if it's really the antennas, or some other factor making it perform a bit better.
Just awesome
Thanks! The Swordfish is one of my favorites.
What is the maximum flying time and distance? Will the aircraft withstand an 8000-10,000mah battery. I want to fly 100-120+ km. Is this possible do that?
How fast are they?
i had a zohd drift on inav, that head nodded a lot. turned out i had the cg way too far back.
The GC seems good on this one as best I can tell. My Eagle did the same thing in inav 5, it was the gain for altitude control, I forget the correct term or variable, but Marc helped me tune a couple things on that one and flew great after. I suspect it's something similar with this one.
If that 270 degree servo can physically go further, then you can easily extend the pan range in INAV. I have no idea if Ardupilot supports that.
You can also configure the ESCs to break on idle if you want to reduce drag during gliding and decrease the risk of damaged props on landing.
Also I wish they had made the nav lights face backwards too as they nav lights are meant to be.
There's no physical stops in the servo, and you won't damage the feedback pot rotating it a full 360º, but the feedback pot only works in about a 270º range. The normal pulse range between 1000-2000uS drive it to about 180º, you have to extend the range to get the full 270. So it's already extended to the limits of what it can do and still center. Any more and starts rotating continuously, which is bad for wiring... lol
@@bonafidepirate Ah alright, so I assume from that that one can extend the uS range in Ardupilot then.
@@WinstonSmith1984 Yeah, you should be able to use 500-2500uS in both inav and AP
Do you mind sharing what battery you are running? Nice flights man!
Sorry I should have mentioned that in the video! lol It's a 4S1P 18650 Li-Ion, 3500mAh. I have two, one is from ZOHD and the other from Titan.
@@bonafidepirate No need to be sorry at all, it's great to see someone else that enjoys this plane. 4S1P 21700 4000mAh in mine. Also have WS Avatar in mine. Thanks for all your content!
Thinking of getting into fpv but zero experience with rc vehicles. Would this be something a newb could do or should I look at drones?
Planes are super neat, but quads are a lot easier to launch and land. Lots of build your own non-FOV and non-distance planes are sub-$100 to build.
May I know the max flight time?
On the lower right side, is that VTX temperature (BAR)?
It's the temperature reported by the barometer. Not terribly useful as it's always warming than ambient temperature outside, I mostly just stick it there as a filler to balance the OSD a bit rather than have nothing down in that corner. I believe you can also show temp. from the IMU, but that will show even higher than the barometer in most cases.
@@bonafidepiratehello, can explain how to display on OSD the temp from the barometer?
Wow! How are you getting your AHI so responsive? That looks way less jerky and of higher frame rate than mine.
It just worked normal for me... lol Are you using Walksnail? I didn't do anything special, just set up MSP Display Port in inav on UART 5 since I used the "DJI" plug on the F405 Navi. I'm almost sure there were some OSD related changes/fixes for HD in Inav 6, could be related?
@@bonafidepirate Yup, using Walksnail. It’s maybe because I’m used to looking at my flight footage after merging it with the OSD data using the overlay tool, which seems to lose the responsiveness, and the synchronisation.
I’m also still on one of the iNav 6 release candidates so maybe the full version might be better.
Thinking about getting this one ,have you had a chance to checkout the titain dynamics 3d printed planes? Got some really nice ones
I've been watching his designs, but haven't had the desire to print one yet. I don't think I'll ever print a whole plane. Maybe I'm wrong, but printed planes all seem to be some balance of heavy/fragile/take a lot of hours to print... lol I don't like that combo. I'll stock to foamies for now.
@@bonafidepirate I've tried and I agree with you so far anyway...If I could only print EPP.
@bonafidepirate I just printed one still haven't maiden it yet , using the polymaker lw pla that is pre foam and it's good stuff , the one I printed is almost the same size as my aero scout and it might be about 150g heavier at flying weight, he has a vtol version come soon thats what I've been waiting on , converted my t1 ranger to vtol and love it
@@bonafidepirate I've printed several planes. For sure they are heavier and more fragile that their foamy counterparts. I've only had one so far that flew pretty good. I've got another to maiden and am hoping the best, but still know the durability will never be there.
Hi, Nice vids,thanks.Your aircraft is very efficient. My TalonGT is at most 100mAh/km. Do you have any ingenuity for the aircraft? . I would like to know the battery specifications for your aircraft.
I'm using a 4S1P 18650 Li-Ion battery, 3500mAh.
This is almost exactly what I want to build, but I don't have any RC gear yet.
Eventually I would want to build something that can do over 6 miles range with max loiter time.
How does the video feed in your goggles/monitor compare to the recording (which I assume was recorded on-board)?
The video feed you see here is exactly what I see on the monitor, the HDMI signal is split to the monitor and to my capture card. Walksnail HD FPV looks amazing, and far better than any analog system I've flown over the years.
@@bonafidepirate Thanks for the response!
When you plug Ur battery in does the plane need to be level, how does the jiro know its level 🤔
The airplane does not need to be level when the battery is plugged in. Just keep it stationary until the accelerometers work out the direction of the gravity vector. From then on, level is derived from the accelerometers, gyros, and clever algorithms 😊
what battery did you use to get 30+ minutes flight time?
I fly it with Li-Ion 4S packs. I've used both a 3500mAh 18650 and a 5000mAh 21700.
It's not EYAS, but it's neato.
I've been on the fence with the Swordfish - it would go nicely with my Dolphin. But I have a Dolphin?! lol
I don't have a Dolphin but I know people seem to like them. I can truly recommend this one though, it flies super nice. It's so solid even in manual mode with no stabilization. Some have reported yaw wag in certain conditions but I haven't seen it yet, at least not to a degree that it bothers me, or that I even noticed... lol
@@bonafidepirate I had very noticeable yaw wag on my maiden flight in the breeze/light wind. I trimmed down the V-tail tips flush with the elevator. I'm hoping that'll prevent the wag when in the wind w/o hampering the feel of the plane in the calm.
The home arrow seems to be pointing in the wrong direction when you pan the camera. I thought that was fixed in iNav 6.
During the first flight, I had it all set up with the pan servo so the home arrow would follow it, but the degree's was set up wrong so it didn't follow correctly. If I remember right it's something to do with the extended PWM range I'm using for the pan servo output, I know I had the same problem back when I first set that up on the Eagle, and I don't remember exactly how I solved it then. For the second flight I turned that off so the home arrow ignores the pan servo, until I fix the issue. ;)
@@bonafidepirate Yeah seeing the cockpit like view is great and the 360 apparent view is amazing. Like being in a P38 Lightning!
Would you build me a RTF long range plane for me or just flight controller system?I really like watching your videos and know you know what your doing.I love your Passion and skills in building these long range platforms. If you could build me the complete wired up flight controller system you use for your long range planes I can install it in my new plane.Cost is not a issue..I would love a long range VTOL.
Wow I never had a problem with your audio. My suggestion would be a Rode smartLav if you’re already using your phone.
My guess is this was meant to be a comment for Giz FPV? lol I watched his video earlier, and this sounds in context for that one. ;)
@@bonafidepirate hahahahah lol, you’re right this was some chromecast magic. Watching his video but yours showed up on the phone to interact! I’d better ctrl+v over to his video
@@bonafidepirate I’ve also never had a problem with your audio😉
what is the osd?
Just the basic inav OSD with Walksnail. It's the stock font that comes in the Walksnail firmware.
I have a 2170 4S (4000mah) pack of Molicells I made, I use them to power my Goggles right now. They are really energy dense. You'd get an hour I'm sure on this bird ...🤔😏😀🇬🇧
I'd like to try a higher capacity battery in here. Normally I'm happy after a half hour of flying and ready to land, but I'd like to see if I can get it flying longer for those extra fun flights, like these were... lol
@@bonafidepirate I'm sure it would handle the extra weight. Just the launching might be an issue...🤔😳🇬🇧
Auto level can't fix a badly tuned airframe, I think the motors need tilting down more ,2 degrees
If that were the case you'd see problems in all flight modes, not just when it's attempting to stay at a fixed altitude.
Why not just course hold and just the amount of throttle you need to stay in your flight level? Takes less amps....
I like having "true" cruise with altitude hold, and once everything is tuned and set up well it can fly just as efficient as manually controlling the throttle. Cruise really helps when panning around looking at things while flying low during turns, etc.
I also need to see the plane even if it's just the nose tip
I always like seeing at least a little bit of the plane, it's less disorienting I guess. I love seeing both motors on this one while looking forward. I just wish I could hear them now! lol I love the sound of a twin. Maybe one day we'll get audio with an HD system.
I think the wtfos hack allows live audio with the full size air unit...
@@MrDrivesafe Interesting, I haven't really kept up with the DJI stuff. Where does the audio come from, is there a mic onboard or does it use something for an audio input?
Yes, the full size air unit has a mic built in that it normally uses to record audio to the SD card in the air unit itself.
@@bonafidepirate In HDZero you have to run an analog VTX to get audio., if you need audio anyway.. I never have listened while flying because I always forget to plug a ear bud in.
Why Ardupilot?
Personal preference, and better fonts with Walksnail for now, at least until Walksnail supports custom fonts for inav working in the goggles/receiver, not just post rendering.
what controls on your radio do u use the move the camera?
I use the sliders on the side of my TX16S. I have some longer levers that makes precise control easier with them: www.thingiverse.com/thing:4532831
@@bonafidepirate ah ok I been using the yaw that isn't used on any of my planes except not the sword fish uses it.. so I have to change all mine but the pots switches are Jerry when trying to use on a servo plus this way I don't have to worry about moving my throttle to far when I move the camera.
@@devilsreject78 I prefer using the rudder stick too, unless I have yaw control like you said... lol I also end up moving the throttle when I'm panning the camera. I had even set up a throttle "lock" on my Skyhunter on a switch, so I'd set up my cruse then lock it and not worry about it again until I needed throttle control later in the flight. I was always worried I'd forget to unlock it if something came up where I needed quick throttle to get out of a situation, but thankfully it never happened. I haven't set it up on any of my other planes for that reason though. I try to get in the habit of not moving the throttle when panning with the rudder stick. Tightening up the "drag" on the throttle helps, especially if you use the ratchet with "notches" too instead of just the smooth throttle.
@@bonafidepirate ye a h same here..... moving the throttle when panning... I thought of the lock to but same reason I didn't do it.
Once I raised my throttle way up and didn't notice I don't like doing that far from home in afraid of getting the esc even tho it can handle 3x of what the motor pulls...
I moved my pan servo to the left side slider last night, haven't flown yet but in thinking it'll work good cuz it moves smooth as in when it's on the potentiometer knobs it's jittery sometimes.
I just ordered the walksnail because you posted about the sale.
@@bonafidepirate i been using the "PAN" on left rudder stick on tx16 and i 3d printed a better control knob, i love it now, works great.. i finally flew my swordfish, i dunno how im liking the vtail. at first i loved, but todays flight 3rd, i wasnt liking it today but it was pretty windy. so im gonna keep flying it and see