Motor died immediately on takeoff

RagingMako

New member
My son just built an Ft Tuter and we were excited to take it out for a maiden, when we got to the field the motor was working fine but when he went to take off he gave it a little too much elevator to get the tail wheel off the ground (the landing gear was in taildragger configuration) and the nose went down. When the nose went down the prop hit some grass and cut the grass ( we think the grass went into the motor). when the nose hit the ground, the motor started smoking. When we looked closely at the motor, we saw what looked like a burn on one of the copper coils in the motor. We couldn't get the motor to work after that so we are wondering if this is common or if there is some other issue that the motor might have had before the incident.
Thank you for reading.
 

Mr Man

Mr SPEED!
My son just built an Ft Tuter and we were excited to take it out for a maiden, when we got to the field the motor was working fine but when he went to take off he gave it a little too much elevator to get the tail wheel off the ground (the landing gear was in taildragger configuration) and the nose went down. When the nose went down the prop hit some grass and cut the grass ( we think the grass went into the motor). when the nose hit the ground, the motor started smoking. When we looked closely at the motor, we saw what looked like a burn on one of the copper coils in the motor. We couldn't get the motor to work after that so we are wondering if this is common or if there is some other issue that the motor might have had before the incident.
Thank you for reading.
Sounds like a cooked motor that will never work again. Was the throttle still on after it hit the ground?
 

LitterBug

Techno Nut
Moderator
Is it possible one of the mounting screws was touching the coil wires through the back? Not familiar with that motor.
Nevermind. I looked at a picture of it.

2212-1250KV_PNG__31963.1684184684.png
 

Shurik-1960

Elite member
1. Ingress of small stones and deformation of the protective varnish of the winding, 2. Ingress of moisture, 3. poor-quality winding of the motor wires. 4. The propeller size is for a 2S battery. Disassemble the motor and wrap it with 0.4 mm thick wire. Dip the motor winding in a radioprotective varnish.
 

Captain J

Well-known member
My son just built an Ft Tuter and we were excited to take it out for a maiden, when we got to the field the motor was working fine but when he went to take off he gave it a little too much elevator to get the tail wheel off the ground (the landing gear was in taildragger configuration) and the nose went down. When the nose went down the prop hit some grass and cut the grass ( we think the grass went into the motor). when the nose hit the ground, the motor started smoking. When we looked closely at the motor, we saw what looked like a burn on one of the copper coils in the motor. We couldn't get the motor to work after that so we are wondering if this is common or if there is some other issue that the motor might have had before the incident.
Thank you for reading.
i have had a flite test radial 2205 and 2206 be fried within 15/20 seconds of launch. brand new out of box.

if you read any thing on here i am working on currently, i am going thru motors like pez, however this wasnt always the case. currently i am intentionally aiming for highest top end as possible on some frames so i am going to lose motors till i find what i am looking for (yes i am frying a bunch right now)….everyone on here will tell you i destroy everything and i am the problem…i had an F pack 2205 burn up 15 seconds after launch, and a flerken pack 2206 burn up in about 20 seconds after launch, both on 3s 850 mah, both on FT prop which came in bag. neither even made it to altitude. i tossed them, they immediately felt like bricks, i fought and fought and then the just glided down. both times i thought i accidentally put a dead battery in my case, only to smell the burning as i got closer to the plane. in the last weekish i purchased a 2808 and an 80 amp esc both from two different vendors not FT. the 2808 was DOA, i sat down this evening, started building, esc was dead, neither with any use other than initial testing. motor was tested along with servos, then the next time i plugged into it was dead (the next day when i went back to work on the plane i was building), never even had a prop on it, esc only ever plugged into a battery and motor for initial testing once.

everyone on here will strongly disagree with me…this is 100% completely normal. finding good electronic products in this game is tough, and commonly require buying the more top end products.

personally, i do not think its “rc planes”. i have worked in a couple fields, and have hobbies i am pretty serious about in a couple of fields, something i started noticing within the last 5 years is solder joints, circuit boards, and copper wire coming out of china, depending on factory, is getting extremely poor.

its a real bummer and extremely frustrating 😔 sorry to hear it happened

dont let this make you quit! get up and try again 🤙🏻
 

Mr Man

Mr SPEED!
1. Ingress of small stones and deformation of the protective varnish of the winding, 2. Ingress of moisture, 3. poor-quality winding of the motor wires. 4. The propeller size is for a 2S battery. Disassemble the motor and wrap it with 0.4 mm thick wire. Dip the motor winding in a radioprotective varnish.
Hmm, I don’t think moisture would do much, brushless motors work fine completely submerged. But I agree with the others, and I now know what’s on some of my used motors.😜
 

Shurik-1960

Elite member
I burned out 2 engines due to water ingress: 1 - snow got into the engine in winter and 2 - when the boat capsized. I disassemble all NEW engines and dip them 2-3 times in Plastik-71 radio varnish.You made me laugh: make a video of your engines swimming and running. There was a video on YouTube of experiments on which engines actually work in water....There are very few of them. I have a 0.4mm wire that was manufactured in the USSR for space needs. You can't find wires of this quality right now...I have engines that have been running for over 10 years after rewinding.