Видео

I had to max out the travel range on the transmitter. It’s probably not the greatest for the servos, but it for sure moves around more

@ have you ever had issues with the linear servos giving out when maxed out like that? I did the same thing to my elevator servo and it went bad

Hahaha unfortunately yes

Thank you!

Thank you for your detailed analysis and feedback. I appreciate your perspective and the time you took to break down the incident. Upon reviewing the footage at 0.25x speed and reflecting on my experience during the flight, I noticed that the plane did not respond to my transmitter inputs as expected. Looking at roughly 1:03 to 1:07 in the video I bank and yank to the left. In the video we can see the plane roll left and pitches up. Then for some reason it stops rolling left and just pitches up. If you look at my thumb stick I am pushing it all the way to the left and it isn’t rolling at all. Then the same thing happens at 1:08 where I try and bank left and to what I assume the connection reconnects and it immediately snaps upside down. I pull out of this but I am still trying to go to the left so I put the stick to the left and the plane glides up and to the right. This is really obvious at 1:10. The stick is completely left and the plane rolls to the right. I would be curious how this would be possible without the plane losing connection. Once again obvious at 1:12 when the plane rolls one more time to the right when the stick is to the left. In a previous F-15 flight video, I executed similar (super basic) maneuvers without any issues, which leads me to believe that this incident was not solely due to pilot error. I’ve been flying RC planes for over six years-though I’m not a professional, I have considerable experience with these types of aircraft. In this particular flight, the plane failed to respond to my controls, which is uncharacteristic based on my past experiences. It’s worth noting that we hadn’t set up the failsafe mode at the time-a step we plan to implement in future flights. Additionally, the AS3X SAFE mode was not activated, so the system lacked a reference for level flight during signal loss. Interestingly, this isn’t an isolated incident. We’ve experienced similar signal disruptions at this specific location, even with different planes. Notably, during these occurrences, the video feed remained uninterrupted, suggesting that the interference might be affecting the control signal specifically. Given these repeated experiences, I believe that external factors, possibly environmental interference at this location, contributed to the control issues during the flight. While pilot error is always a consideration, the consistent nature of these incidents points toward other influencing factors. Thank you again for your insights. They’ve prompted a thorough review of our setup and flying locations to ensure safer and more reliable flights in the future.

⁠​⁠​⁠the airplane will not respond to your aileron inputs if the wings are stalled. Using opposite aileron while the wings are stalled only makes it worse and the airplane will not react the way you think it will. That’s why you have to first pitch the nose down to regain lift in the wings and aileron control. When you start your left turn you don’t bank far enough for how much elevator input you commanded which is why the nose pitched up the way it did. As soon as the nose went up like that with minimal throttle, the jet was near a stall which is obviously when you look at the jets relative movement to the ground below it. Aileron input while near a stall will increase your stall speed and increase the likelihood of one wing stalling before the other, causing a spin. Unfortunately, that jet lacks rudder which is the control surface that you would usually use to recover from a stall or spin and how you turn at slow speed. Again, if you lost signal the throttle would automatically go to 0 regardless of if you have a fail safe setup or not. It’s a safety feature built into the receiver to ensure the jet doesn’t hit someone on the ground at 80mph after a signal loss.

⁠@@InvertedAviatorsRCit makes sense that you felt like the airplane was losing and gaining back connection because when the airplane is near a stall, like it was, the control surfaces have much less authority and will have a delayed response. Pilots say the controls feel “mushy” when near a stall, especially the ailerons since stalls begin at the trailing edge of the wing (where the ailerons are) and propagate towards the leading edge. This is also one reason why aileron input causes the airplane to stall at a higher airspeed, since you are changing the shape of the trailing edge. When you commanded full left aileron there was a delay and then it finally gained authority as you let off elevator pressure and the nose came down slightly. When at a high angle of attack and low airspeed, the wings and fuselage blank out the clean airflow over vertical stabilizers and the jet will lose lateral stability, meaning it will start rocking from side to side like it did before entering the spin. Then the aileron input agitated the airflow over the right wing enough to cause a spin to the right even though left aileron was commanded. Once in the spin, aileron will only make it worse unless you can push the nose down and regain airspeed. At the end of the day, I think this was nothing more than an aerodynamic stall that turned into a spin. Keep your throttle high while maneuvering and pay close attention to airspeed and remember that the first step to stall recovery is to unload the wings by commanding a lot of down elevator and throttling up to 100%. Ailerons are not useful unless the angle of attack is lowered and you regain airspeed. I am a commercial pilot with a bachelors degree in aviation science so I feel like I have a pretty good understanding of aerodynamics and stall characteristics since I have personally experienced and recovered from stalls more times than I can count during training. Also, I want to make sure you know that I’m not trying to hate at all, I’m just trying to inform and have a discussion! You’re awesome!

Thank you for your detailed and well-thought-out analysis. I genuinely appreciate the discussion and your willingness to share your expertise. I would also appreciate if you read through this entire message even though it’s long. I completely agree that stalls, AOA (angle of attack), and proper recovery techniques are fundamental to understanding RC flight dynamics. However, after reviewing the footage in detail and considering past experiences, I still believe this incident was caused by signal interference rather than an aerodynamic stall. Here’s why: 1. Previous Identical Maneuvers Without Issues In our previous video titled "Flying the EFlite F-15 Eagle: Frozen Lake Flap Test!" at the 5:00-minute mark, I performed the exact same left turn maneuver-banking left, pulling up slightly, and leveling out-without any problem. If the maneuver itself was inherently prone to stalling, I would have experienced similar issues in that video, but I didn’t. Looking at the new video, at 1:04, I performed the same maneuver with similar throttle, yet instead of turning, the aircraft unexpectedly pitched up and rolled to the right. This inconsistency leads me to believe that something external interfered with control inputs rather than this being purely a stall issue. 2. Aircraft Setup & Stall Considerations Flaps Were Deployed: Takeoff flaps were still down during the maneuver, which should have reduced stall speed and made it harder for the aircraft to enter a stall so easily. Control Surfaces Set to High Rates: The control surfaces were set to their highest rates for quicker aerobatic response. This means I should have had more control authority, not less. Power-to-Weight Ratio: This F-15 is fully capable of sustained vertical climbs, meaning it has more than enough thrust to maintain controlled flight, even at higher AOA. Given these conditions, I find it difficult to believe that a simple bank and yank turn-something I’ve done countless times-would have suddenly induced a severe stall without any other contributing factor. 3. Repeating Signal Issues at This Location This isn’t an isolated incident. We’ve had signal-related control issues with different planes at this exact location multiple times. Most notably: Our Eflite Corsair also lost control in the same area but, unlike the F-15, it glided down more gently rather than snapping into a spin. In every case, the FPV video feed remained completely stable, which means the interference seems to only affect the transmitter signal, not the video link. The issue happens at a specific spot in the park, not randomly-suggesting localized interference rather than general connectivity issues. 4. Failsafe & Receiver Behavior You’re correct that many Spektrum receivers are designed to cut throttle when a signal is lost, but we had not set up failsafe mode yet, meaning the behavior of the system in a loss-of-signal event was not predetermined. Since AS3X SAFE mode was not enabled, the aircraft had no reference for level flight during a signal loss, meaning it wouldn’t have corrected itself like it would in an assisted mode. This also explains why, during the moments where control seemed to "reconnect," the plane snapped violently-something that wouldn't happen in a smooth aerodynamic stall recovery. 5. The Timing of the Incident is Suspicious This happened only 15 seconds into the flight, long before battery sag or any potential aerodynamic fatigue could play a role. If it was purely a stall, why was I able to take off, perform a right-hand turn immediately after takeoff, and continue flying normally until this exact moment? It seems unlikely that I could fly for 10 minutes in another location without issue, but at this particular spot, the plane suddenly becomes uncontrollable just seconds into the flight. Conclusion I fully acknowledge that stall/spin mechanics are a real possibility in many crashes, and I appreciate you taking the time to explain your perspective. However, given my previous flights, the plane’s power and control setup, the repeating issues at this location, and the lack of video signal disruption, I still believe that external signal interference played a major role in what happened. That said, I love having these types of discussions because they help refine my understanding of RC flight. If you have any thoughts on how environmental factors like water towers or other sources might cause localized interference, I’d be really curious to hear your take! Again, I appreciate your time, and I look forward to discussing this more. Thanks for the great conversation!

@ I understand that the maneuver isn’t prone to stalling, but you have to look at all the things that happened that maybe didn’t happen in your other flight. You had just completed a climb up, then did a roll, then climbed again without adjusting throttle, then started the left turn. The key thing here is that you climbed without applying throttle meaning you were losing airspeed in the climb so that you were relatively slow before you even started the left turn, then you pulled back too far and put the jet into a high AOA, banked condition, effectively killing off the remainder of your speed leaving you in an unstable high alpha and a very low speed. Again, left climbing turns are obviously not dangerous and do not always cause a stall or spin, but in this case you were already slow, and you only pulled back, never forward or even neutral on the elevator which drastically increased drag, making the jet slow down very fast. Im not saying this was not a single stick movement that caused a wreck, I’m saying you kept getting slow throughout the whole climb and the left turn with abrupt elevator command was the last straw that left you in high alpha and stalled, which developed into a spin from there caused by aileron input, no throttle applied, and no down elevator applied. Obviously I didn’t experience this first hand and I’m just going off the video, but I see a lot of factors leading to the spin, not just one wrong move. If you had applied the proper control inputs to correct for the AOA, slow speed, and inputs for proper spin recovery, then I would be more receptive to your claim, but you arguably did everything wrong to recover so it’s hard for me to see it that way. It’s really easy to blame signal loss for your plane doing something unexpected when brought to a stall! (Especially when flying fpv with no airspeed or ground speed indicators) Thanks for your time and the discussion!

Absolutely not true, you realize the video signal didn't cause the crash, right?

@@chad9166 bro isnt that what he just said

@@chad9166 ELRS is a radio protocol, idk where you got that I thought the video caused the crash

Thank you!!!

Thank you! Let us know if you have any more questions!

@@InvertedAviatorsRC I finally did the first step of the project and have a Nano 33 BLE Rev2 and a XIAO nRF52840 Sense board working. I went with 2.2 and will see if drift is an issue. Lesson learned for me to actually create github account so I could download. Then use new firmware and GUI. XIAO is a lot smaller and easier to upload firmware (double tap button; drag and drop; connect to Head Tracker software). Now on to the hard part. Adding Bluetooth trainer to tX16s and boxer.

Yep! It’s up on our GitHub page! github.com/InvertedAviatorsRC/IARC_repo/blob/main/distance_100.ino

@ thank you!

Let us know if you have any more questions!

using the link you gave me I looked at the code and I am a noob, but it doesn’t seem like it’s for this thing (I only saw gunlit, and distance_100)

@kyguythedoglover SHOOT I forgot to upload the file. I’m really sorry and I can get it uploaded later today!

noooooooooo. NO!

Woah woah woah woah wait wait wait wai

Yeah those are great ideas! My goal for this v1 was to make it small enough to fit on an rc plane (especially smaller planes), so weight was at a premium. But I totally agree that there are a lot of cool things that could be done with this initial design!

@@InvertedAviatorsRC may i have your permission to modify and adapt this file?

Yeah sure! We uploaded them to thingiverse for that reason! As long as you keep us updated on your cool new additions!

Hahaha that would be perfect!

Hahaha yep it does!

Thank you!

Yeah you totally could! The arduino board doesn’t really draw that much power, and my goal was to make this system as integrated into the goggles as possible. While you might loose a little battery life, overall I think this is a pretty nice solution

Haha yeah that’d be cool!

Hahaha yeah that’s a great way to think about it!

Thank you so much! Glad you liked it!

Hello! Hope you’re doing well!

@@InvertedAviatorsRC steel above ground got to I'll live my dog🤞

@jamesturncliff5960 that’s great to hear :)

"Crow" is a flap and aileron configuration. The flaps are completely down, and the ailerons are both up. It creates more drag and helps slow the plane down.

@@InvertedAviatorsRC Thank you. My plane is set up with ailerons that can double as both spoilerons and flaps.But i didnt know what crow meant.

I totally could! I didn’t have one handy to test it out with, but that would probably work!

I think I was lucky enough to keep all the pins after the crash. However, one of them did fall out when I was taxiing, so I had to tape it back in.

Yeah there were wires in the vicinity, but I made sure to stay away from them. Plus with the camera on the plane, it is easy to steer clear of any danger

Thank you very much! There should be an update about this process in the February edition of the Savage newsletter, so I'll make another update video once that comes out!

I'd say it wasn't purely for filler, it was also for some comedic relief. I really like how the video turned out, but I appreciate the feedback!

Thank you very much!

Yeah that’s a super valid point! And anything that we can see from our micro planes you could already see 1000x better with google earth

Thank you for sharing your perspective and your experience in the hobby over the years-it’s always insightful to hear from someone who’s been involved for so long. You bring up some important points, and I’d like to address them thoughtfully. Regarding the spotter requirement, you're absolutely right that FPV legally requires a spotter who can maintain line-of-sight with the aircraft. However, I think there's some misunderstanding here: if the aircraft completely loses signal (both camera and transmitter), having a spotter wouldn't allow them to "take over" the controls. A signal loss is a technical issue, not a matter of line-of-sight. That’s why many of us focus on improving our equipment, setting failsafes, and advocating for flying in safe environments where we can minimize risk to everyone around us. I hear your concern about the challenges faced by RC clubs over the decades due to urban expansion, noise, and other factors. What we're trying to do is find a way to coexist with the changing world, particularly in urban environments. Instead of being constantly pushed out of parks and communities, why not work together with the city to find designated spaces where small, quiet, and electric aircraft can fly safely within park limits? It's not about ignoring safety or respect for others-it’s about evolving and adapting so we can continue enjoying this hobby in a way that’s accessible to everyone, not just those who can afford a private flying field. Saving up for a dedicated flying field is certainly an admirable goal and a great long-term solution. However, suggesting that everyone in the hobby "just save up and buy their own land" isn’t practical or inclusive for most participants. The beauty of this hobby lies in its accessibility to people from all walks of life, and part of what we’re advocating for is to ensure that flying RC planes remains accessible, even for those who can’t afford multi-million dollar private fields. At the end of the day, we’re all passionate about this hobby and want it to grow and thrive. I hope you can see that what we’re trying to do-amending restrictive rules to allow safe, respectful flying in public parks-can help ensure the longevity of this hobby for future generations while still maintaining safety and respect for those around us. Thanks again for watching and engaging in this conversation. Your insights are always appreciated!

@@InvertedAviatorsRC You fail to understand the purpose of a spotter. It has nothing to do with loss of signal or video. All FPV flights require a visual observer (spotter) to be present for the duration of any flight. The purpose of the visual observer is as follows: To inform the operator of any unexpected person or obstacle (vehicles, animals, civil infrastructure) that has entered or is present in the operation area so that the operator may make the necessary avoidance adjustments. To inform the operator of any other aircraft in the area, both model and full scale. If you are going to advocate something please educate yourself. And stop posting videos showing a clear violation of Federal Law!

​@@JDsRCModelWorld-up7wsDisregarding stupid nanny state rules is the moral and just thing to do. Suggesting anyone who wants to fly "just buy your own airfield" is boomer levels of conceit.

@JDsRCModelWorld-up7ws I understand the purpose, but the moment the police officer arrived the parking lot, I said "looks like we have someone joining us". The beauty of having a camera on the plane is that I'm able to see my surrounding area, and since I'm in a park there isn't a lot of space to scan at any time. I'm also not quite flying high enough (as per FAA rules) to be anywhere near "full scale" models, and I also wasn't flying in a No-Fly Zone (as per FAA rules), and my plane weighed less than the Remote-ID limit (as per FAA rules), and I wasn't flying near or over anybody (as per FAA rules), so I deemed a flight in an empty park was perfectly ok

@chad9166 Yeah I agree, trying to change the rules that don't make sense is the correct things to do. If we had enough money to buy our own airfield I totally would, but that's a liiiiiiiiiiiiiiitle out of the budget at the moment :D

Our group uses the 'park flyer'. 90% of everything we fly are small. (A few of us, 3 to be exact) occasionally fly bigger birds. I have a few 2m birds, but haven't had em up in almost 2 yrs. WE fly at a local (big!) Church. The preachers watched us fly yrs ago when we were in a local lot. Im the 1 who has always talked (& begged) ppl for a spot of our own. Nothing yet🤷‍♂️. The preachers welcomed us to fly at their church.

WE were all shocked to actually be welcomed to fly there.

Yeah I agree insurance would be a good call

Thank you very much! There should be an update about this situation in the February edition of the Savage newsletter, so I'll make another update once that comes out. I'm for sure going to continue to pursue this and educate those who want to know more about the hobby we love!

Haha if that's what I need to do in order to get this change I might just have to! I just hope I can contact the correct person to finally get this change in place!

@@InvertedAviatorsRC May as well get paid for your efforts and open a few new career doors! Whats to lose!

Yeah I'll keep pushing in hopes that change comes soon. I'll keep on making updates on the whole process to keep everyone informed!

Thank you very much!!! I'll make sure to keep the updates coming!

Thank you so much!

Really good take , I agree . One major issue in the background of all these silly laws is that if you go to sanctioned flying fields the age demographic is quickly fading out and they are the owners of the flying fields so if those are hard to get to and are also shutting down all over the country what are we supposed to do ?

WE found a (large) church-lot. Been enjoying it for coming up on 2 years.

Yeah unfortunately people see something flying in the air and instead of wanting to learn more, they just want to shut things down. Hopefully we can get things changed sometime soon!

The plane that I was flying was less than the 250g limit set by the FAA, so I don't need a MAC license to fly. But I do agree that getting AMA or some sort of insurance would be smart and helpful in this situation

Yeah I always check my app to make sure I'm not flying in a restricted area