What Really Happened To Hispano Aviation Flight 102?

#crash #thelightersideofrc #rcjets We take a deep dive into what really happened to Hispano Aviation Flight 102 as we examine all the "black box" data from the telemetry system.
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[@thelightersideofrc]

When your done watching, check out our website! www.thelightersideofrc.com/shop

[@andrewmclane5176]

Great job on build ,humbling to know crashes can happen to someone as methodical as yourself ,thanks for presenting the hobby with the highs and lows

[@thelightersideofrc]

Thanks Andrew. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@DadsRCHangar]

Great to have all that data, I am sure you will get it back together. I think the cat wanted to get inside. Have a great weekend 🫡

[@thelightersideofrc]

LOL. Thanks!

[@TheDornado]

The one thing I noticed was it looked like the weirdness with the throttle seemed to happen towards the end of the flight. I was wondering if that may line up with a certain flight condition, like lowering the gear, turning on lights etc, and something with that is what caused the abnormality. It is interesting to try and disect, thanks for the video.

[@sofpv8736]

Agreed! I have come across that servos have started to live a life of their own near electric retracts. insulated the servo cables and the problem went away.

[@wearemany73]

I hadn’t thought of that, it would have been a great exercise to patch her up a little and dry run the entire process in order again on the table to attempt recreate the same problem.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jdsstegman]

Had the same experience 2 years ago. Running jetti as well and in the log, I gave 100 percent throttle and it took almost to the ground till rpm started to come up. In the end it stalled. Mine caught on fire. Nothing left in my case. As you know, people will always be negative. You build and play with more jets than most ever will!! You are more of an expert than 90 percent of them. It happens. Just have to move past it. It sucks but it's part of the hobby.

[@thelightersideofrc]

Thanks!

[@alfernandes4823]

Thank you , appreciate this video, this has happened to all of us if we fly RC long enough, having understanding of what happened is important to me, to try and understand to improve if possible when I fly , thank you for sharing, a fan of your work for sure !

[@thelightersideofrc]

Thanks Al. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@alfernandes4823]

@@thelightersideofrc Yes , have seen video, nice to be able to pin point the problem and analyze the results, I personally use a lot of the components you had in jet, thanks again for the insight, and of course sorry for the loss of your jet

[@Sluf7]

Excellent video as always Jon. It was good with the Data to pin it down to something Usually just known to the Electron Gods. After watching the Crash a few more times {amazing what one does not see on the firs View} bummer all the same the Bull was such a nice Aerial Vehicle and am stoked ya getting another. It is obviously a component issue as you have flown the ELAN since with no issues so a lil Electron got funky somewhere. Once you look at the video again you can see exhaust out put drop off. Ya did great job getting it back as close as you did but sometimes airspeed is just lacking for the last bit like that 777 at Heathrow. Whilst at the Jet met I was at in March they had a Tucano Turbo Prop and a Panther Jet had 2 restarts each real quick 4 seconds {Kingtech } to relite both happened in spots which were survivable Luckly. Although the Tucano had a filter issue they found later on the Panther couldn't find any issue. It would be nice if ALL THE DICKHEADS with nothing constructive to say would go suck oxygen somewhere else just losers who probably don't fly and are just Armchair RCers. Anyhoo carry on and keep at it chap. ;0}

[@thelightersideofrc]

HAHA. Thanks Nick! Love reading your comments! Priceless! Fortunately after this video was released we found the problem. Video on it tomorrow morning!

[@Sluf7]

@@thelightersideofrc outstanding.

[@busmanrc5020]

Thank you for sharing the analysis. I am always amazed that even with all the telemetry we can still be left with a guess as to what happened so as not to repeat., another challenge of the hobby. I think some take fore granted that even though its "just" an expensive model it still flies on black boxes and software like full scale. Great video as usual.

[@thelightersideofrc]

Thank you very much. Fortunately Found the answer yesterday after this video was released! Update coming Tomorrow!

[@damienmilk3025]

Great analysis Jonathan. A number of years ago, I had a P100 Rx do the same thing on final. I was lucky, It was in a CARF Rookie (almost impossible to stall) and just stretched it to the very end of the strip. There was no reason that I could find for rolling back to idle. The engine never did it again but had a catastrophic failure of the compressor wheel at about 5 hrs of total run time. It's now a desk ornament. Fantastic video as always.

[@thelightersideofrc]

Thanks Damien. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@WalterMitty1966]

Hi Jon , great analysis of the incident! Still interesting , as a definite Flag didn't come up Grrr Great vid , as usual mate ! Cheers Phil

[@thelightersideofrc]

Thanks Phil. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@titoortiz4734]

Great investigation Jonathan people going to talk regardless.great job 😊

[@thelightersideofrc]

Thanks Tito. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@titoortiz4734]

@@thelightersideofrc await few weeks sal is going to install skycandy lights on my new toy I'll tell him to send you pictures.

[@craigcarr5704]

Hi Jonathan, was so sorry for the loss of the Bull, but thank you for sharing the analysis.

[@thelightersideofrc]

Thanks Craig. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jwc4520]

Even experts sometimes experience failure, it is good that you have telemetry to go back to. Solving why will lead to better flights and construction in the future . Take care .

[@thelightersideofrc]

Thanks John. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@octane2099]

Thank you for explaining I was wondering what happened.

[@thelightersideofrc]

😎

[@brianreece785]

Great video. I just bought a CARF J-10 used. Has Kingtech 210 with 17.5 hours. Third flight had flame out and couldn't make runway. Landed in a huge ditch which broke up the fuselage pretty bad. Had plenty of fuel so not the issue. Removed turbine and noticed tail cone loose, almost falling out and a few blades missing. Will send to Kingtech for repair and hope they can diagnose why this happened. Very costly event.

[@thelightersideofrc]

Yikes Brian. Sorry to hear that. Fortunately after this video was released we found the issue. Video out tomorrow on it!

[@dagunni3201]

I'm flying RC for over 35 years. Everybody who thinks doing a better job in a situation like this, is either totally arrogant or an complete id**t! This happens to all of unfortunately. Great job Jonathan!

[@olddogg60]

Well said. 👍

[@thelightersideofrc]

Thank you very much! Very well Said. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@ILSRWY4]

keep flying RC

[@XxmillerniaxX]

Or both lol...New airplane so really no feel for how it is going to react. Nothing Jonathon did was wrong, it is pretty much unavoidable at the point that he turned into the downwind leg with no throttle, and cleaning up the flaps was definitely the right thing to do. Seems repairable, move on. Armchair critics be damned..

[@IceMan2035]

Agree totally

[@tabletasgard1205]

Great investigation, remembers me to re-add the auto recording into my jeti. But you should ad your throttle channel into the logging, i use it to compare between engine and input.

[@thelightersideofrc]

Thanks. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@andrewsnelson]

Awesome indepth video. Its great that we all get to learn for this sad accident. Rip bull

[@thelightersideofrc]

Thanks Andrew. More learning to come. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@acw400]

Thanks for the video. To me, the throttle moving is likely a telemetry issue. The telemetry is published by the ecu and as far as I understood your video, there is no fluctuation in the ecu data. To me the root cause is whatever caused the restart. I find it fascinating that you had a flame out and a restart so quick that nobody noticed.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow! The restart shown in this video was initiated when the aircraft went in.

[@klausrohrbach6041]

Great analysis Jonathan! A few questions of mine and observations come to mind. 1) While those battery voltage/central box voltage drops and spikes aren’t large, that could be indicative of a battery surge. What were/are your battery individual cell voltages? Do they stay balanced? If a cell dropped out the system might have blinked so to speak causing an issue. 2) The V-speak module could be faulty and caused the throttle to go haywire and somehow sent feedback to the Swiwin ECU causing the restart to occur. 3) This I found online but Swiwin ECUs and Jeti equipment take in/process RX data and inputs at different frame rates and May not always agree. From what I see is that Jeti uses “Auto” frame rate mode with most electronics but Swiwin likes 11ms frame rates. I wonder if the computers between the radio and V-speak and Swiwin ECU somehow overloaded each other when the frame rates didn’t line up and caused these glitches. Electrical problems are the hardest to diagnose. 4) Those antenna signal drops are a little head turning for me. If they occurred around the same time as the central box voltage drops and amperage spikes/drops, that could be interesting as well. Just my thoughts. The engineer in me always wants to know why something failed.

[@thelightersideofrc]

Thanks Klaus for the educated and thoughtful questions 😊 1. I didn’t specifically check the batteries but the batteries used are new and still in perfect shape. All charges on them have been good. 2. Unfortunately my #1 culprit at this point is the Vspeak. I have spoken to a few other fliers and it has raised concerns. Now Vspeak for Swiwin is the only type to my knowledge that handles the throttle signal through the vspeak. Not a dedicated throttle separate lead. This is a concern for sure. For now I have suspended installing them. Super elan had it pulled out. Kinetix not installed. 3. Yea your correct on the auto thing. Have to set Jeti to a number. I typically use 11ms.

[@thelightersideofrc]

4. The antenna drops are still transmitting but on the scale of 0-9 it’s hitting a 2 or 3. Now I use a clone in my aircraft so no visual of the signal strength on the clone. Only the primary. Because there are 2 antenna on the primary if A1 hits 2 but at the same time A2 is at 8 then no issue at all.

[@klausrohrbach6041]

@@thelightersideofrc Ok that makes sense. Nice to have as much redundancy as possible. Hopefully this gets you closer to an answer.

[@moretor2752]

@@thelightersideofrc My Swiwin was shut down like this. I used Vspeak with Powerbox Core. I saw the display when it is flamed out and the display shown "not connected".

[@lancelink88]

Man it is such an emotionally painful exercise trying to work out something like this. You did a great job under the circumstances and only the fuselage was a fatality, so hopefully you can get a new fuselage and be up and running again soon. To me it had to be a fuel supply issue, or an electrical issue. So I'd check your fuel supply and all electrical connections and you should be good to go!! Enjoy and look forward to it getting up in the air again real soon!

[@thelightersideofrc]

Thanks Lance! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@gogianyee5002]

Hey Jon, sorry for your loss. Maybe take a look at the failsafe mode for throttle to see what throttle level is to see if that throttle position for failsafe corresponds to the log. If so, then that is what could possibly happen. There is another possible scenario, but it usually only occurs with Spectrum radio systems that I know of. Let’s see what this leads first. Regards, Gogian

[@thelightersideofrc]

Thanks Gogian. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@-2772-]

everything was, is and will be perfect and professional...thanks for all for us

[@thelightersideofrc]

Thank you. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@edwinthomas618]

Nice video Mr. J. I've never seen a statue of a critic

[@thelightersideofrc]

HAHA. Thanks Edwin! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@petermang5371]

I had exactly the same situation last year with my Viperjet/Behotec Turbine, that ended in an external landing in a cornfield…The engine slowed down to idle within around 1 minute. The strange thing was, without any changes, I could start again after, and it passed all tests, so I never found out the real reason… As you told, its always easy to be a keyboard hero, if you are not in the situation. I lost 2 planes already by technical malfunction, that maybe would be avoidable with the today’s knowledge…your plane finally stalled because you pulled too much in the last turn…there would be a chance if you keep the nose a bit more down…but again…we are always more clever after and I remember 3 emergency landings that I would have done better on a second try, but thats life snd not a computer game…so just let it go…you did the best you could do in the situation 👍

[@thelightersideofrc]

Thanks Peter.

[@gryfandjane]

Fascinating stuff! KZbin is full of RC crashes, but this in-depth post-mortem with flight recorder data was really exceptional. Could this have been caused by a glitch in your transmitter? Thanks as always!

[@thelightersideofrc]

Thanks Gryf. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@Dane3804]

Hey Jonathon, I've been watching your videos but haven't commented in a while. I'm curious if you've flown your turbine Swift and if you plan on another flight video after you got it dialed in? I'm primarily a composite sailplane builder and flyer but I still enjoy watching your project videos good stuff!

[@thelightersideofrc]

Hey Dane. Thanks for checking back in. The owner sold it a while ago. The new owner installed a retractable EDF unit in it and it's pretty slick.

[@Dane3804]

@@thelightersideofrc Oh I see, Ive been thinking of putting and EDF on one of my carbon 2.5 mtr. Sailplanes for days when the slope lift isn't good looks like a blast! Thanks for getting back to me I appreciate your time.

[@sawtooth4615]

Very fortunate to have this level of flight data. Could shed light on component failure or at least deviation beyond normal operation. Wondering if flaps up and gear up configuration is a consideration during crisis flight management. Since you fly off a grass field maybe a belly landing would minimize damage.........just a thought. But as you say, at the altitude you were in the pattern as well as being down wind, the options where unfortunately limited.

[@thelightersideofrc]

Thanks to the data and great discussion Found the answer yesterday after this video was released! Update coming Tomorrow!

[@sawtooth4615]

@@thelightersideofrc Your builds are incredible. As many "maidens" as you do, my nerves would be shot.

[@ILSRWY4]

From a "real" instructor pilot of Full scale aircraft... just a note of advice. never EVER raise flaps after introducing them during a reduced or no power approach. Once you put them in you are stuck with them. That is why we teach never ever lower flaps or gear until you have a forced landin field lined up straight and makeable. And never EVER try to make it back to the runway, we call that the imposible turn. Hence NEVER make any turns on power off aproaches esp. with flaps, and if you ahve to make only very shallow turns. @3:50 You would have been better off putting it down in that feild gear up landing and try for a soft landing. But that last turn killed all your energy and you raised the flaps killed all your lift. But of coarse everything I just told you is for REAL airplanes. have no idea about RC planes, aerodynamics are the same little or big. Anyway, very sorry what happened. You put a lot of work into it and you are amazing in your builds. Sorry to see it end like this.

[@thelightersideofrc]

👍

[@svendevries9403]

Hi Jonathan, you may check the engine again with the gear and servos connected to the receiver. Then cycle the gear and the servos (especially the flap servo) under load and check if you can repeat the issues. Not sure if I get it correctly, but it seems that the problem occurred primarily after take-off and before landing. So actuating a faulty gear controller or flap servo under load may cause interference with the receiver signal. This would also explain with you had no issues during run on your test bed.

[@thelightersideofrc]

Thanks Sven. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@Bluesmurfpilot]

Curious why the data terminal box was in a ziplock baggie when you had the turbine on the test bench?

[@thelightersideofrc]

Typically keep them in there to prevent scratches.

[@fuser6221]

Hi Jonathan, good video; We saw how you showed the software version for the ECU could you please tell us how to see that very same info, and how to update the version on ours?

[@thelightersideofrc]

Thanks. For Swiwin you need the update dongle. specific to swiwin. For Jeti you need the Jeti Dongle. Once you have that item it's pretty simple .

[@fuser6221]

@@thelightersideofrc HI Jonathan thanks for your reply. I do fly Jeti, I own the DS-24 Limited Edition and a Swiwin 80B could you please specify which of the two dongle I need to update the software on my Swiwin ECU?

[@davidsnyder238]

Jon, first off tell the naysayers to F off or I will, happily for you. Clearly anyone dumb enough to troll you has no idea about you, your quality of work or level of craftsmanship. Aside from your excellent piloting skills. It simply makes them look stupid. My friend, Clearly after your thorough analysis you did everything you could with a bad situation. Hopefully this will give us things to look for and be cautious of moving forward. Keep up all your amazing work my friend.

[@thelightersideofrc]

Thanks David! I appreciate it! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@davidsnyder238]

@@thelightersideofrc Im so glad! Hopefully its easily corrected! It seemed to me it had to be in the throttle control or the line itself but I dont like to speculate. Excited for your final results!

[@jayf636]

What do you set your RX and CB output period to? Ive heard that the swiwin ECU can have issues reading the throttle channel if the output period is set to Auto or even if lower than about 15ms

[@thelightersideofrc]

Auto is an issue. I set it to 11. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jayf636]

@@thelightersideofrc Yes! So glad you found it as I run the same setup! Looking forward to the next video!

[@williamb.9110]

Thanks for sharing that analysis

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@williamb.9110]

@@thelightersideofrc Can't wait!

[@yodaiam1000]

It is hard when I loose a foamy and this must be really hard 😥. Thanks for going through the analysis. Is there any means of fixing the AC and working with the fibre glass and carbon or is the plane a write off? Can you send it back to the manufacturer to remold the missing parts? Would you trust that turbine and the controllers again or would you get rid of them? How much of the plane can you salvage? What kind of monetary looses are you lookin at in a crash like this?

[@thelightersideofrc]

Thanks! Fortunatley everything except the airframe is salvageable. That's the positive. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@wtfmimshag]

This is the real value of telemetry IMO. Yeah live data is useful but successful diagnosis of a fault could save a 20k plane at some point in the future. Glad it sounds like you got to the bottom of things - otherwise youd be worried every time you flew with a piece of that equipment!

[@thelightersideofrc]

Totally Agree! Shortly after this video went live we found the resolution and cause. Video dropping tomorrow with this.

[@richardwylie07]

In full size flying, it’s a no no to turn back to the runway… it’s a leading cause of deaths. They train you to stay straight (within 30 degrees)… and find a clear area. Realise you only had a ploughed field… and you would have thought it was unsuitable. Don’t beat yourself up. It happens.

[@thelightersideofrc]

Thanks! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@MrGirwin1123]

Good job, things are some times unexplainable. My theory is you got to close to one of those hidden ufo's the government has and it messed your signal up😂

[@thelightersideofrc]

HAHA. Thanks Gregory. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jakeclauson9863]

It would be interesting to know what the frequency used for the throttle channel is. Maybe it's just rf interference

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@timwrightjetguy]

Hi Jon, was the Vspeak set to Jeti EX Bus? (Not default) If so there should not need to be a throttle cable to rx. From Vspeak manual: “TELEMETRY With these systems, the throttle signal is transmitted via the respective telemetry bus, so that the 1-pin Throttle cable of the VSpeak has no function and is not connected.”

[@thelightersideofrc]

Hey Tim. Vspeak was in default mode so Gray line was required. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@timwrightjetguy]

@@thelightersideofrc Excellent, look forward to learning your discovery!

[@ericbergdahl6971]

What if you rerun the engine for the same length of time for both flights back to back to see if you can get it to show you the same problem as you saw when the plane went down. Because it looks like you had about eleven to twelve minutes of good before the start of up and down on the throttle. Just a thought. Hope you can get to the problem.

[@thelightersideofrc]

Thanks Eric. Fortunately just after this video went live we found the cause. Video out tomorrow on this.

[@N99JH]

Great analysis. Data reduction conclusion? - it crashed. What is telemetry good for if all it can do is to confirm what everyone who saw the crash video already knew: it crashed!

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow! The data is so important! IF you can dissect the WHY it can be a saving grace for the future installs.

[@robward7662]

How do you arm your turbine I have mine on a lock out switch Jeti of course, you don’t do the trim thing do you? Had someone trim down in flight thinking doing elevator and then accidentally shut the engine off, of course your turbine would be constantly going into restart.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@robward7662]

@@thelightersideofrc fantastic worst thing ever not finding out.

[@kenmembrino2575]

Did you ever chk your radio. I have seen the potent channels do strange things

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@motorcyclenut1]

Great video, by any chance did you check your fuel filter or uat? Maybe it was a fueling issue. Anyways I hope you can figure it out

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@motorcyclenut1]

@@thelightersideofrc that would be great

[@dennisengel1909]

Seems a bit curios about the high amps and the volt drop of both batteries at the same moment your turbine shut down/restart maybe there was a servo issue on flaps or whatever which caused a overload on the cb? and went out like a small failsave!?

[@thelightersideofrc]

Hey Dennis. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@tracythomasvision]

Sorry to see it happen. No lives lost. On to the next.

[@thelightersideofrc]

Thanks. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@Bluesmurfpilot]

Did you reach out to Jeti to see what their thoughts are on the throttle anomaly? Oh, nevermind, just saw your update video about the root cause.

[@thelightersideofrc]

👍😉

[@VictorHugoRC1111]

Going to the air is always a risk. Sometimes your perfectly built and prepped plane gets a gizmo and there's nothing you can do. I lost my HSD F-16 due to a microwave tower performing stress test nearby. The signal was lost and the turbine went to idle and plummeted into the ground. Just the elevator servos were salvageable.

[@thelightersideofrc]

Thanks Victor! Your totally correct! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@DonDegidio]

Hi Jonathan, With those fast throttle swings, seems as though the receiver was responding to some erroneous throttle signals. They would be very difficult to track down. Were you using a new receiver? Keeping fingers crossed the same doesn't occur again. You and the family stay safe.

[@thelightersideofrc]

Thanks Don. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@savethehumans7460]

Not being able to pinpoint the cause of throttle issues would make me question every time that turbine was used. I will say a NTSB inspector is concerned you’re coming for their job.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@SomeGuyInSandy]

Bad cable? Vibration affected connection?

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@noelgraham4607]

With the dollar investment in these planes its smart to figure out why. Interesting stuff!

[@thelightersideofrc]

Totally Noel! Fortunately Found the answer yesterday after this video was released! Update coming Tomorrow!

[@Nitzz97]

I found the issue! It was quite clear when you started looking at the data. You're running a MAC. 😂 Don't listen to the keyboard squids, man. They have no idea what a professional is that has a lot of experience.

[@thelightersideofrc]

LOL. Thanks Scott. Fortunately Found the answer yesterday after this video was released! Update coming Tomorrow!

[@anupamdasrc6970]

seems fixable. maybe this is an opportunity to do a video on how to repair composites? thoughts?

[@thelightersideofrc]

Yea. I don’t have any desire to repair.

[@ChrisGracy]

Any chance your radio programming inadvertently links your throttle trim to flaps?

[@thelightersideofrc]

No. Good thought though. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@wikeroy]

Perhaps there is a connection problem in the transmitter; The cable from the throttle axis to the pcb; Perhaps a plug is a bit loose in one of the pins .... so that there is an open input, with a free fluctuating voltage.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@coule2406]

Great video. But what i see in the data is that when the throttle goes wierd the rpm does not move as much. I know jets react slower but still. I hope you will find a proper answer.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@miker15677]

Anyway could there be a chance of interference from a outside source?

[@thelightersideofrc]

YES!!!! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@AN-ce1nd]

What was your battery voltage and current with respect to time telemetry? To rule out the pump one most look at an open or shorted condition. If the voltage of the pump lowers and current rises this is an indicator of a load. That’s a normal attribute of a motor. If the voltage goes up and current goes down, that would be a attribute of a no load condition. The capacity of the battery should be able to sustain both conditions. I would suggest an observation of the behavior of a full power vs idle power. This would exhibit the load on load off attribute of the pump motor and battery. It seems to me that the pump motor went down to a steady state we shall call it limp mode for simplicity. Excellent analysis and I own a Jeti system.

[@thelightersideofrc]

Fortunately Found the answer yesterday after this video was released! Update coming Tomorrow!

[@AN-ce1nd]

@@thelightersideofrc thank god keep us informed! We can all learn from our expensive hobby. I use the JetCentral LUA in my Jeti it’s super cool I am sure you’ve seen it.

[@slap-nutzrc7145]

You did is good as you could. Most telling you how to fly, probably suck at flying. Great video

[@thelightersideofrc]

Thanks. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@helischorsch9786]

Very interesting Jon!...as I'm flying Futaba, I guess Jeti is doing it different and not having those flight conditions, right?...Well, I'm just crashed my brand new 700 heli and still don't know what went wrong, but don't have such a great datapool as with Jeti. Maybe some ground testing will bring some light in? Cheers from Munich as usual, Sven🍻

[@thelightersideofrc]

Thanks Sven. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@Dennis-hc6qr]

could have any of the components overheated during flight? Seems they both had errors after five minutes of flight.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@victorrcjets7660]

I am a keyboard samurai😅 NOT😊 thank you for your effort in analyzing this complex data. I've seen flameouts so many times not many are a positive outcome. Your making decisions in spit seconds. Low and slow is the worst time😢 everyone wishes to made it back home safe and sound but the speed is not your friend 😭 the restart is working but never in time when slow and low!

[@thelightersideofrc]

Thanks Victor. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@victorrcjets7660]

@@thelightersideofrc that is good news, looking forward to listening to what the actual results were...

[@wayneschriver638]

That sucks! Been there done that. I’m emotionally distraught for 3 days then start shopping for a new one😁😝👍🏻✌🏻

[@thelightersideofrc]

HAHA. Thanks Wayne. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jorgemonserrate7070]

Jonathan, if the throttle signal captures position of stick; have you check transmitter to ensure there’s nothing lose there? Or you’ve used it since without issues? Other thing that comes to mind is possibility of EM Interference, with so many electronics and cables in those planes.

[@thelightersideofrc]

Thanks Jorge! your on the right track for sure! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jorgemonserrate7070]

Awesome, it may be a pricey learning experience, but education is expensive nowadays! 👍

[@michaellongford871]

I am sorry this happened bro ! Screw the trolls this could have happened to anyone was beyond your control!

[@thelightersideofrc]

Thanks Michael. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@TheMmorbitz]

Possibly an incorrectly configured throttle curve in the transmitter for the flight phase with landing flaps?

[@thelightersideofrc]

If you watch the follow up videos, it was a bundle of light controls next to the turbine Telemety/sensor unit. Causing it to have odd signals.

[@b.w.oostdam8875]

You do not have to defend your procedures or actions. To me you acted completely comprehendable and logically (I think correct). The stall did surprise me though. The aircraft seemed on a established glide path when it happened. Very sorry for the loss of the plane.

[@thelightersideofrc]

Thanks.

[@wearemany73]

Good stuff, using this experience as a way to learn and grow is exactly what’s needed. 👍🤔🇬🇧 Is it technically possible to have the telemetry alert you to an engine restart? If so, it may have given you half a chance to avoid the crash. (I would argue that even recognising Trolls is food for the hungry Blighters….F@#£ em! 🤷🏼‍♂️)

[@thelightersideofrc]

Thanks Cool Cat. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jordancoleman2402]

This video should of been titled "the darker side of RC" sorry for the loss brother ☹️ im waiting on the NTSB report to come out before i talk $hit in the comments section..... 👍

[@thelightersideofrc]

Thanks Jordan.

[@ryanrekz7744]

In general i havnt flown anything this large, but i dislike flaps, except on takeoff, for aircraft like this i can understand why people use flaps, coming in slow means you can stop the aircraft in a shorter distance, glad to see there wasnt a fireball and a much worse crash

[@thelightersideofrc]

Thanks for watching!

[@ryanrekz7744]

@@thelightersideofrc Thank you for making your amazing content as always, and happy flying

[@Frank-xm1sx]

How about a competing signal? Someone out there was another signal was another transmitter playing games.

[@thelightersideofrc]

Answer was found in follow up videos.

[@kellywoodworth310]

Bummer, maybe you'll figure it out someday?

[@thelightersideofrc]

Figured it out. there are a few videos covering it.

[@viperjet7655]

Ever thought of just running only Jet Cat engines. I think they are better quality. That’s just my opinion though.

[@thelightersideofrc]

Heck no!

[@viperjet7655]

Can you give your opinion on the jet cat engines. Have you had bad experiences with them.

[@viperjet7655]

I only switched when my kingtec exploded at dream works at full power. Thank god it was their and no one got hurt.

[@jayb2617]

rpm sensor?

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@andrewpoole6854]

Sorry to see that happen Johno. That’s a real shit sandwich. I have no experience with Swiwin turbines, however I have a few Jetsmunt turbines and they play very nicely with the Xicoy and Jeti gear.

[@thelightersideofrc]

Thanks Andy. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@andrewpoole6854]

@@thelightersideofrc Excellent mate

[@hirnlegorush]

no IMU onboard so you could put together all telemetry vs attitude on the timescale ? for the price tag this planes should really have a proper blackbox

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@jcslotsandjets1816]

What about a issue with the fuel pump?

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@randomnickify]

That was really interesting analysis. What about placement of elements in the plane - could heat from the engine or batteries mess with electronic? Also - your cat has brilliant comedic timing :D

[@thelightersideofrc]

LOL. Nez is a special one! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@uleke1962]

induction high ampere, shield high ampere cables

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@wesleyshirley326]

To me it looks like something in the RX set up. I wish you would have compared the RX signal to the throttle. It almost looks like a brown out or some other interference on the throttle channel.

[@thelightersideofrc]

Thanks Wesley. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@keithcarpenter5254]

Looked like Dutch roll, from using ailerons instead of rudder.

[@thelightersideofrc]

🤔

[@CFITOMAHAWK2]

Low Speed, low flaps too. Basics.

[@thelightersideofrc]

🤔

[@CFITOMAHAWK2]

So maybe you can rethink about cutting the flaps when slow and no power at all. Had happened a lot on airplanes. In about 1980, i almost stalled a Cherokee 6 overloaded took off with ice cream to the islands. I took off too early dark night towards the atlantic ocean, The airplane was not cert for IFR. lost all reference in the dark, instruments were bad, felt the stall at about 200 agl, Quickly popped out flaps to 25, then lowered the nose a bit and the sinking stopped. I was a Bush Pilot in South America and learned always to take off with some flaps and land with flaps too. The trick saved my life more than once. We used to take off overloaded often.

[@Axr24have]

Sorry about the nasty comments man. Yep, we weren’t there. You loose power and you try to find a soft landing. Your only choice might be a low speed low altitude turn. Nobody got hurt, you did well.

[@thelightersideofrc]

Thanks John. Nice to have closure on it!

[@62heliman]

my be land with gear up, not sure if that was mentioned.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@dandowns9669]

I'm no "keyboard warrior" but please explain to me how flaps, made to change the angle of attack of the wing and allow the airplane to fly stable at slower speeds would ha e caused you to stall "sooner" if you left them in. You hear the beep when you put the flaps up and the left wing stalls almost immediately. Please explain..

[@thelightersideofrc]

to stay in the air, you need air speed. The plane can not fly without forward motion. My forward motion was already very slow, no engine power and no more forward motion. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@260bossute]

Turning back to try and make the strip is a fatal move in big aviation. I would have tried a gear up belly landing, even if it was rough. At the end of the day you did your best!

[@thelightersideofrc]

🙌👍

[@Mikeylikesit1968]

You think you might have a battery surge and maybe had a slight fail safe happening

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@mytubehkjt]

Someone of your caliber could repair that jet. Do a video on it. ;-)

[@thelightersideofrc]

Thanks but no desire to do so. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@skytyme7721]

Where is the black box?

[@thelightersideofrc]

🤔

[@justinm1150]

very sorry your plane crashed was hoping for your sake would be a easy find to what happened to cause crash of a Awesome plane

[@thelightersideofrc]

Shortly after this video released we figured out the cause. Update coming tomorrow

[@Gavs_rc_hobbies]

It gets frustrating when the armchair experts start trolling.

[@thelightersideofrc]

Totally! Found the answer yesterday after this video was released! Update coming Tomorrow!

[@flyboywbl]

Fuck the trolls. You did your best. Not much more you can do.

[@thelightersideofrc]

Thank you. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@TomFly]

Well investigated. Did you speak to the turbine manufacturer in the meanwhile? What do they say? Do you exchange the ECU now? I would not feel well having it in one of my planes again after that kind of circus going on…😉

[@thelightersideofrc]

Thanks Thomas. Found the answer yesterday after this video was released! Update coming Tomorrow!

[@DanRibar]

"dive in".... ha ha..... I get it.

[@thelightersideofrc]

LOL.

[@hankdurrer5650]

Why did you not have a 900 RX in the plane. If you suspect it was a reception problem, the 900 back up may have helped. Sorry this happened and yes, the idiots with the "not so smart" comments are not worth listening to.

[@hankdurrer5650]

You also send the flight data to Jeti to get them to take another look.

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@rcmaxi5990]

i have hade that senerio some times wher i just hade a blow out or so in my senerio after the first flight with my jets i alredy now the stal speed so i whuled have just but nose downe full flaps gear in and would have gone straight and landed the plane in the filled i men i flie modell arooplans since im 3 thanks to my dad and now im 14 and fly big jets thanks to my sponsers but im very sorry for your lose of such an butiful aroplane i also just reasently have lost a jet i have grown up with

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@crunchied8]

I wont be trusting that module at all just another point of fail also update the firmware to the latest version if you have bad firmware bad things happen

[@thelightersideofrc]

Found the answer yesterday after this video was released! Update coming Tomorrow!

[@crunchied8]

@@thelightersideofrc was the answer firmware or that module thing forgot what that module is called