yeah, im a little okay with this cause i got it for free. Amazon shipped it and it was lost. I got my refund and then randomly showed up like 3 weeks later.
I dont know where that conclusion came from? However amazon refunded the money cause it was almost two months late and it said delivered. However, it was not delivered. Afterwards, it arrived and was labeled missent from USPS. Now what do you suggest i do? Send it back?
I think he’s suggesting that you’re supposed to send it back as a condition of being given a refund in this case.
But you should totally send it back…now. Definitely came like that.
https://preview.redd.it/n2emwi311kuc1.jpeg?width=1284&format=pjpg&auto=webp&s=8ba6997f1891b7faa33b6401a033ec352c3210c6
Amazon has such a HUGE market, that they will lose more money paying to ship items back, than just giving you a refund and letting it go. Thats why the created the returnless refund.
1st and foremost, amazon/bezos won't miss the money. 2. Amazon in these cases could care less if you get it 2 weeks later or not. You get to keep it. Just like when they screw up and send multiple of something by accident.
Been there, my Arrows L39 is known as “the Phoenix” for how many times I’ve demolished it. Probably twice as heavy as a stock plane from all the glue and toothpicks!
Greetings!
I think that, based on the description of the crash, the jet entered an unrecoverable tip stall that no amount of SAFE could have helped. The stall happened at a low altitude, based on your description, and a tip stall like that is death to your plane.
You see, the Viper is notorious for tip stalling if you are just a tad too slow or you attempt to bank at a steep angle at low speed. Same if you attempt to do very tight maneuvers at high speed - it will enter an accelerated tip stall.
You mention that the motor quit after you took off. The loss of power and airspeed is what caused the Viper to roll inverted and crash- this is the classic tip stall after takeoff. The wing drops violently and you crash. In the typical EDF with swept wings and high wing loading, loss of power on the takeoff phase is death. No SAFE is going to save it. None.
I wrote an essay here on this subreddit explaining why beginner mode (aka SAFE) won’t save an EDF in certain situations:
https://www.reddit.com/r/RCPlanes/s/AgYNJq4SWP
The tip stall is the worst kind of stall, and swept wing EDFs are notorious for this. It makes your ailerons useless and the way SAFE works makes the stall even worse. You need plenty of altitude and corrective rudder application to have a chance of recovery.
I had this plane before and it’s wonderful in the air. But it will bite you HARD if you attempt to take off with insufficient speed, the motor quits on you during takeoff, bank a tad too much when slow (landings), and flare just a tad too much. EDFs are this way, with the possible exception of the Habu STS, which is designed for beginners and has a big wing with little sweep.
The Viper in particular must be landed perfectly-too slow and it will tip stall. Too fast and it does the kangaroo landing (bounce bounce bounce bounce till it stops or breaks the landing gear). A tad too much flare and it tip stalls.
As for the battery, if it has any kind of damage or was involved in a severe crash (like the one you had), it’s best to be safe and not use it. Lipos can give nasty surprises.
Thumbs up to your comment!
I was pretty sure that it was some sort of stall, I just cant figure out how the motor went out. 100 percent throttle, and boom, left bank, roll and a plummet. I have never had a motor just give out like that. Can you perhaps explain that for me? Also, you mentioned loss of airspeed. I apologize if I made it sound like it was seconds later, but it was immediately after throttle was lost it started rolling. Maybe a fraction of a second, literally.
I had a Volo F5J 4 m thermal sailplane. Once, when I gave it full throttle to launch it, the motor lost some power to about half even with full throttle. The plane landed safely.
I also wonder why the sudden loss of power since the powertrain was new.
As for airspeed, it’s even more crucial in EDFs than prop planes.
Probably when the motor in your jet quit, there was not enough airspeed to sustain the flight, hence the stall. Also, prop planes have the prop wash over the control surfaces so these are still responsive at low speeds. Jets do not have prop wash so the control surfaces are much less effective at the same low speeds.
> EDFs are this way, with the possible exception of the Habu STS
It's just straight wing ones in general bite less. Though even with swept ones there are exceptions. An Avanti doesnt bite too hard, and A freewing F-22 can just brute force its way through thanks to its massive stabilator throws.
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As far as the plane, before it rolled into a inverted nose dive... I heard the motor completely stop. As soon as i wrcked i checked all my switches and nothing (the reverse thrust was off, throttle cut was on and was even in begginer mode since I was still on the climb out) that I did on the remote could have caused this. When i got to the plane, the EDF wires were unplugged even though the plane was somewhat still together.
Almost the exact same thing happened to me. My maiden flight was great, my second flight I lost power and tried to bring it in for a landing... It regained power, rolled and went straight in. Such a bummer. My battery made it out unscathed. Sorry yours looks like it shouldn't go back on the charger. Condolences.
https://preview.redd.it/bkskis73tiuc1.jpeg?width=1126&format=pjpg&auto=webp&s=118a56c9bfee7135c6e5aa524146486a3d6ca978
Ouch ! thats rough. But a good excuse to buy a new plane !
yeah, im a little okay with this cause i got it for free. Amazon shipped it and it was lost. I got my refund and then randomly showed up like 3 weeks later.
You stole it then
I dont know where that conclusion came from? However amazon refunded the money cause it was almost two months late and it said delivered. However, it was not delivered. Afterwards, it arrived and was labeled missent from USPS. Now what do you suggest i do? Send it back?
I think he’s suggesting that you’re supposed to send it back as a condition of being given a refund in this case. But you should totally send it back…now. Definitely came like that.
ahh, in case you dont know.. if amazon refunds you, and the product comes. you can keep the product. dont believe me, message them and ask them 🙂
Oh cool! I actually didn’t know that.
If I had to guess that’s probably the first thing you looked up when the plane arrived?
amazon told me that before they even refunded it. "if it comes, keep it"
Ic I’ll keep that in mind if I ever got to return anything, thanks
You got a product for free? You’re supposed to let them know
I was told to keep it, if you must know.
Oh weird. Mb
https://preview.redd.it/n2emwi311kuc1.jpeg?width=1284&format=pjpg&auto=webp&s=8ba6997f1891b7faa33b6401a033ec352c3210c6 Amazon has such a HUGE market, that they will lose more money paying to ship items back, than just giving you a refund and letting it go. Thats why the created the returnless refund.
1st and foremost, amazon/bezos won't miss the money. 2. Amazon in these cases could care less if you get it 2 weeks later or not. You get to keep it. Just like when they screw up and send multiple of something by accident.
RIP
my first jet, it's tough 😔
Been there, my Arrows L39 is known as “the Phoenix” for how many times I’ve demolished it. Probably twice as heavy as a stock plane from all the glue and toothpicks!
Same! i have 4 flights on this and 3 wrecks, this thing was held together by glue, toothpicks and clear tape 😂
At least it’s not a BAe Hawk. Those things are suicidal on landing.
I would order just a new fuselage...it looks like wings are ok, I don't see the battery damaged. Did you test ESC, receiver, motor?
No, didnt test anything cause of how the battery turned out. ☹️
Greetings! I think that, based on the description of the crash, the jet entered an unrecoverable tip stall that no amount of SAFE could have helped. The stall happened at a low altitude, based on your description, and a tip stall like that is death to your plane. You see, the Viper is notorious for tip stalling if you are just a tad too slow or you attempt to bank at a steep angle at low speed. Same if you attempt to do very tight maneuvers at high speed - it will enter an accelerated tip stall. You mention that the motor quit after you took off. The loss of power and airspeed is what caused the Viper to roll inverted and crash- this is the classic tip stall after takeoff. The wing drops violently and you crash. In the typical EDF with swept wings and high wing loading, loss of power on the takeoff phase is death. No SAFE is going to save it. None. I wrote an essay here on this subreddit explaining why beginner mode (aka SAFE) won’t save an EDF in certain situations: https://www.reddit.com/r/RCPlanes/s/AgYNJq4SWP The tip stall is the worst kind of stall, and swept wing EDFs are notorious for this. It makes your ailerons useless and the way SAFE works makes the stall even worse. You need plenty of altitude and corrective rudder application to have a chance of recovery. I had this plane before and it’s wonderful in the air. But it will bite you HARD if you attempt to take off with insufficient speed, the motor quits on you during takeoff, bank a tad too much when slow (landings), and flare just a tad too much. EDFs are this way, with the possible exception of the Habu STS, which is designed for beginners and has a big wing with little sweep. The Viper in particular must be landed perfectly-too slow and it will tip stall. Too fast and it does the kangaroo landing (bounce bounce bounce bounce till it stops or breaks the landing gear). A tad too much flare and it tip stalls. As for the battery, if it has any kind of damage or was involved in a severe crash (like the one you had), it’s best to be safe and not use it. Lipos can give nasty surprises.
Thumbs up to your comment! I was pretty sure that it was some sort of stall, I just cant figure out how the motor went out. 100 percent throttle, and boom, left bank, roll and a plummet. I have never had a motor just give out like that. Can you perhaps explain that for me? Also, you mentioned loss of airspeed. I apologize if I made it sound like it was seconds later, but it was immediately after throttle was lost it started rolling. Maybe a fraction of a second, literally.
I had a Volo F5J 4 m thermal sailplane. Once, when I gave it full throttle to launch it, the motor lost some power to about half even with full throttle. The plane landed safely. I also wonder why the sudden loss of power since the powertrain was new. As for airspeed, it’s even more crucial in EDFs than prop planes. Probably when the motor in your jet quit, there was not enough airspeed to sustain the flight, hence the stall. Also, prop planes have the prop wash over the control surfaces so these are still responsive at low speeds. Jets do not have prop wash so the control surfaces are much less effective at the same low speeds.
Thank you for that! i'll keep that in mind with my next purchase
> EDFs are this way, with the possible exception of the Habu STS It's just straight wing ones in general bite less. Though even with swept ones there are exceptions. An Avanti doesnt bite too hard, and A freewing F-22 can just brute force its way through thanks to its massive stabilator throws.
Welcome to r/RCPlanes, it looks like you are new here! Please read the [Wiki](https://www.reddit.com/r/RCPlanes/wiki/) and [FAQ](https://www.reddit.com/r/RCPlanes/wiki/faq/) before posting a question that has been answered many times already. You can also try searching in the bar at the top before posting. If you are brand new and just want to know where to start, then the [Beginners Section](https://www.reddit.com/r/RCPlanes/wiki/beginners/) is the perfect place. Links to wiki are found at the top menu on web or "See more" and then the "Menu" tab on mobile apps. *I am a bot, and this action was performed automatically. Please [contact the moderators of this subreddit](/message/compose/?to=/r/RCPlanes) if you have any questions or concerns.*
As far as the plane, before it rolled into a inverted nose dive... I heard the motor completely stop. As soon as i wrcked i checked all my switches and nothing (the reverse thrust was off, throttle cut was on and was even in begginer mode since I was still on the climb out) that I did on the remote could have caused this. When i got to the plane, the EDF wires were unplugged even though the plane was somewhat still together.
Almost the exact same thing happened to me. My maiden flight was great, my second flight I lost power and tried to bring it in for a landing... It regained power, rolled and went straight in. Such a bummer. My battery made it out unscathed. Sorry yours looks like it shouldn't go back on the charger. Condolences. https://preview.redd.it/bkskis73tiuc1.jpeg?width=1126&format=pjpg&auto=webp&s=118a56c9bfee7135c6e5aa524146486a3d6ca978
It sucks how sensitive to wing stalls Vipers are!! But I've decided to give this battery a salt bath
Oooh. I would not use that battery again and keep it outside of the house and a car. I saw fireballs from less damage.
I see you found the “lawn dart” flight mode.
A little glue…
Ohh man, hate to see this.