today i crashed my Belt CP v2 for NO REASON!

hi,

today i was outside flying, but only a short time.
the heli came down for no reason, the onboard cam recorded the power loss very good.

if someone knows why this happend, please let me know.

im abit frustrated at the moment because i wasnt able to do anything. im sure it was not a pilot error.

Hmm..... after it got to the ground did you try to power it up again and see if it worked?


Here's some ideas:

- the battery was low and the ESC cut off
- the battery is bad or not balanced
- a wire rubbed through and shorted out
- a wire came loose

Check that ESC still works. It might be that your ESC fried during the flight,

4n6Days wrote:

Hmm..... after it got to the ground did you try to power it up again and see if it worked?


Here's some ideas:

- the battery was low and the ESC cut off
- the battery is bad or not balanced
- a wire rubbed through and shorted out
- a wire came loose

i have just tested it, the motor still works and the rotors spin with the same battery.
it was fresh charged today.

i dont think i will repair it, i cannot trust the components anymore because i dont know what happend.

Are you going to give up or get something else?

Well it's definitely not mechanics fault Maybe there was some kind of glitch and rx lost tx signal

4n6Days wrote:

Are you going to give up or get something else?

i might give up with heli flying and concentrate on edf jets. if there the engine fails i have a chance to get the plane down without damage.

i dont really want to put every broken piece out again, buy new cheap made spare parts to get into the same situation again.

i would think another way, if it was a pilot error, but atm im just frustrated because it really flew stable before this day.

Oh man! That's terrible! Sorry to hear about your crash!

does your Belt CP V2 still use the stock ESC? That would really be my first and only guess unless it was a loose wire somewhere. I def think you should stick with it though, I had my E-Smart do the same thing due to a Rx lockout, got to watch my E-Smart drop from 60ft with my camera onboard, and see it all drop on a barbed wire fence, absolute carnage. Camera still worked but the heli kit was done for. Crashing because of pilot error is crappy but when it happens for no reason its especially frustrating but its all just part of the hobby

Are you running 72mhz or 2.4ghz?


What broke in the crash?



We all feel for you, man!

4n6Days wrote:

Are you running 72mhz or 2.4ghz?


What broke in the crash?



We all feel for you, man!

2.4ghz.

-front left main-frame mount was cut - i will glue it.
-canoby broken
-main blades damaged but i guess if i put some color back on it it would work but i'll use the carbon blades the next time again. (seemed to fly smoother)
-flybar bent
-tail boom bent
-main gear lost some teeth

main shaft and blade feathering shaft seems ok, i will see if it is bent when it is build.

just ordered the spare parts one last time, if it does that again, then i'll sell the crap and stay with jets only

@nuttcaze
yes, everything stock, ESC stock, i have put it over the battery btw because the heli was heavy tail weighted.
my guess is:

A) esky stock battery is crap - i got always some weird altitude drops while hovering for no reason
B) ESC - no idea.
C) a cable is broken, i guess that would be one thing i will never detect
D) bad charger - no idea how the batterys are charged - ill get a better one in the near future

I really think the ESC was the culprit, I had the same sudden dropping prob till I replaced my ESC, the heli spins up much smoother now too.

Nuttcaze wrote:

I really think the ESC was the culprit, I had the same sudden dropping prob till I replaced my ESC, the heli spins up much smoother now too.

when i flew, i often had to use full throttle to prevent the heli from touch down to the ground. with the original esky 1800mha it was often very close to hit the ground, with the 2200mha it was abit better.

how do i know what ESC i need?

30A is the minimum but a 40A ESc would be better

the one used in the belt cp v2 is a 25A one, if it is not enough i wonder why they build a heli with it..

can i use every ESC 30-40A or do i have to select a specific one to work correct and not having problems to connect it?

Hey Guy's,

I also have the 'sudden drop' issue with my V2. I will upgrade the esc shortly and hopefully it will correct it. Sometimes it hovers nice and steady for about 10-15 seconds and then she drops, I originally thought it may be due to wind interference until I realised one day................there was none. I'm just glad I am still using training gear

You can use almost every ESC. Just look that it has soft start

P3tras wrote:

You can use almost every ESC. Just look that it has soft start

lol, that answer is abit easy

how do i know one is good and another one is bad?
i know absolutely nothing about ESCs.

This is the esc that I am going to order for my beltcpv2. http://www.xheli.com/60aspco.html

I am also going to order the esc programmer that is at the bottom of the page. I have had any esc related crashes with my belt yet but everything I read tells me that it is just a matter of time before it happens.

Good Luck and dont give up!!!!

J.

I replaced my stock Belt CP v2 ESC with the exact same 30 amp Volcano series ESC. Although it fixes all the problems and works nicely, I would recommend something else. Reason bring is it gets pretty hot towards the end of the flight. It does depend on outside temperature how hot it gets.

Reading few threads about three weeks ago suggest a 40 amp ESC with SWITCHING BEC would be best choice. If I had to do it all over again I would at least get 40 amp Volcano for like 22 bucks.

flagmax wrote:

I replaced my stock Belt CP v2 ESC with the exact same 30 amp Volcano series ESC. Although it fixes all the problems and works nicely, I would recommend something else. Reason bring is it gets pretty hot towards the end of the flight. It does depend on outside temperature how hot it gets.

Reading few threads about three weeks ago suggest a 40 amp ESC with linear BEC would be best choice. If I had to do it all over again I would at least get 40 amp Volcano for like 22 bucks.

the last time i found out that the music which plays when you connect the battery (dont know if the motor plays the beeps or the ESC) takes very long sometimes to start. in normal mode it plays instandly, in HH-mode it can take up to a minute for some reason.

would such a 40A volcano ESC work with the e-sky belt cp v2 standard transmitter?

i also wonder if a stronger ESC has any negative effect? shorter fly-time? or anything else?

Yes that ESC will work with stock TX. And it doesn't have any negative effects. Maybe it is LITTLE bit heavier But you will not notice any negative effects.

I made a typo in my post above the best UBEC is SWITCHING type not LINEAR.

The motor is what beeps and plays music (Volcano series).

Sometimes I also get a delay before it initializes even with Volcano ESC. Maybe it waits for the gyro I am not sure I always use HH mode.

Yes switching type is very good because it consumes alot less power and can take high voltage range. Only downside that it produces alot of sound. So better keep it away from rx or you might have some glitches Linear BEC doesn't produce sounds. It's its only pros.

flagmax wrote:

I replaced my stock Belt CP v2 ESC with the exact same 30 amp Volcano series ESC. Although it fixes all the problems and works nicely, I would recommend something else. Reason bring is it gets pretty hot towards the end of the flight. It does depend on outside temperature how hot it gets.

Well, i saw a guy from Colombia, who placed a Processor's fan over his ESC... he told the ESC does not need it, but he does it cuz he is using a HB with fuselage, to keep it cooled... I do not know what do you think but seems for me like a pretty good idea.

GaryX1001 wrote:

4n6Days wrote:

Are you running 72mhz or 2.4ghz?


What broke in the crash?



We all feel for you, man!

2.4ghz.

-front left main-frame mount was cut - i will glue it.
-canoby broken
-main blades damaged but i guess if i put some color back on it it would work but i'll use the carbon blades the next time again. (seemed to fly smoother)
-flybar bent
-tail boom bent
-main gear lost some teeth

main shaft and blade feathering shaft seems ok, i will see if it is bent when it is build.
...

blades feathering shaft was bent too, had to replace it today. tail boom is installed again, i only spend 2h on the main gear, the screw at the bottom of the tail shaft was annoying me.
tomorrow ill build it to the end, i also ordered a new charger - GT Power A8 - i hope it is not just a waste of money.

before i go out to the field again ill order a new ESC, i just didnt want to spend too much money at the same time

ok, i just finished re-building my heli, it hovers again more stable than before.

and:

the motor cut off just happend again!

i had luck it happend at the ground trying to spin up. it seems like the battery is the problem.
i tried the other battery and there was no problem.

when my new battery charger arrives i will check the voltages of each cell. im pretty sure the crash was because of the esky 1800mah battery.

GaryX1001 wrote:

ok, i just finished re-building my heli, it hovers again more stable than before.

and:

the motor cut off just happend again!

i had luck it happend at the ground trying to spin up. it seems like the battery is the problem.
i tried the other battery and there was no problem.

when my new battery charger arrives i will check the voltages of each cell. im pretty sure the crash was because of the esky 1800mah battery.

Was it the green one? the Stock battery which comes with the Belt?

I ask it cuz i had a similar problem, but with the stock battery of my Esky Dauphin... Not good quality on those green bats.

Bert wrote:

GaryX1001 wrote:

ok, i just finished re-building my heli, it hovers again more stable than before.

and:

the motor cut off just happend again!

i had luck it happend at the ground trying to spin up. it seems like the battery is the problem.
i tried the other battery and there was no problem.

when my new battery charger arrives i will check the voltages of each cell. im pretty sure the crash was because of the esky 1800mah battery.

Was it the green one? the Stock battery which comes with the Belt?

I ask it cuz i had a similar problem, but with the stock battery of my Esky Dauphin... Not good quality on those green bats.

yes, the original green 1800mha esky battery.
i also found out it didnt provide stable power to the heli, using my xcell 2200mha battery is like flying a totally different heli!

Yes, stock 1800mah battery doesn't provide power very well With 2650mah battery heli is much more powerful. But cut off never happened to me. Maybe there is weak connection in the battery. Remove shrink wrap and look for bad solder joints