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Other › T-Rex 700e catches fire!
02-20-2011 08:35 PM  6 years agoPost 21
asm

rrVeteran

California

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Dang. All that money and time, and 15 seconds of fun is all he got...
Actually, it's 15 seconds of fun + a very funny video to share with millions of people!!

B

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02-20-2011 09:56 PM  6 years agoPost 22
Richardmid1

rrProfessor

Leeds, England

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How come Bert Kammerer and many many other people can hammer a 700E with a CC80HV with no problem?

It was obviously a faulty ESC.

60% of the time, it works every time!

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02-20-2011 10:41 PM  6 years agoPost 23
GMPCOBRA

rrVeteran

oregon

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good reason to stick to nitor in my book lol

WHAT DO YOU MEAN ITS NOT SET UP FOR THAT, OH THATS WHAT YOU MEAN

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02-20-2011 10:52 PM  6 years agoPost 24
Santiago P

rrProfessor

South West, Ohio

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How come Bert Kammerer and many many other people can hammer a 700E with a CC80HV with no problem?
By hammer, do you mean hit the ground or work it hard in the air?

?

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02-20-2011 11:36 PM  6 years agoPost 25
P.I.Engineer

rrApprentice

Kent, WA

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it completely looks like he was messing with cyclic on the ground, you can't do that with fbl.

i learned the hard way... twice

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02-21-2011 12:26 AM  6 years agoPost 26
rexaholic

rrNovice

United States

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The CC80HV is fine with the correct setup. Using fixed endpoints, he probably only spikes around 90 to 100 amps which is fine. On gov mode, spikes would be higher and pushing the esc harder. He is probably also a throttle hold ninja so that also factors in to saving an esc.

When you hit the ground, a massive amp spike is sent to the esc for a split second. While castle has built in protection via the sensitivity settings, it may not be enough. Anyone that flies the big 90e's knows you should probably use the "insensative" setting to keep from getting cut outs in high amp maneuvers. I can't remember how many amps that limits it to on an 80HV but it clearly was not enough. The spike was too high and overloaded the esc.

It all boils down to what your setup is. A 110 or 120HV or better are fine as castle esc's can handle much higher spikes than their rating allows. I have spiked as high as 200 amps on my 120HV That being said, 200+ amps could very well BBQ a 80HV.

"Helis are proof that God loves us...Wind is proof that he also has a sense of humor!"

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02-21-2011 12:55 AM  6 years agoPost 27
heli-cuzz

rrElite Veteran

Pittston, Pa. USA

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it completely looks like he was messing with cyclic on the ground, you can't do that with fbl.
You forgot to mention fbl with a stabilization system.

Just plain ol fbl NOBAR can do the doggy walk on the skids with no repercussions.

Fury 55 NIB Furion6 CGY750 fbl helicopter-Frenzy CGY750 fbl nitro-Frenzy fbl NOBAR90

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02-21-2011 02:10 AM  6 years agoPost 28
PC12DRVR

rrKey Veteran

USA

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It was obviously a faulty ESC.
Yeah the esc caused the heli to flip over

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02-21-2011 02:21 AM  6 years agoPost 29
Raffy

rrElite Veteran

Chicago, Illinois

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It looks like the pitch and roll is reversed. What should have been a takeoff became a rollover! NOT FUNNY at all.

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02-21-2011 02:38 AM  6 years agoPost 30
Stephen Born

rrElite Veteran

USA

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Good thing it didnt lift off. Could have been a lot worse. You should see the guys other videos on YouTube. He crashes his 700e several times even before liftoff. His 600e is the same story. He is a very dangerous (pilot?) I think he needs a mSR for a while.

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02-21-2011 03:33 AM  6 years agoPost 31
Band1086

rrElite Veteran

Kennewick, Wa. USA

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Any way that could have been prevented with a different ESC setting?
Insensitive on the Ice 80 is a 140A cutoff and that should be enough to keep it from burning up. On the Ice 120 it's 180A. But it is possible to turn the over amp completely off, which is a very bad idea.
BTW, the heli in the vid looks like it's FBL. If the cyclic gyro direction is backwards it will tip over just like the vid shows...

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02-21-2011 03:55 AM  6 years agoPost 32
krashtagain

rrKey Veteran

ohio

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1 word . NITRO

If you're not living on the edge you're just taking up space !

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02-21-2011 04:06 AM  6 years agoPost 33
Dr.Ben

rrMaster

Richmond, VA, USA

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Except possibly for the most aggressive (5) flight mode, with the CGY 750/FBL you can mess with the cyclic just about like with any FB model with NO tendency to bite you/the model. No bad manners at all.

But we digress.....

Ben Minor

Team Synergy Team Futaba Team Kontronik USA
Progressive RC

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02-21-2011 05:50 AM  6 years agoPost 34
2004lsc

rrApprentice

Phoenix, AZ

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it completely looks like he was messing with cyclic on the ground, you can't do that with fbl.
I dont have FBL, yet

But I hear many people say this. Y is it? Like the heli knows that's its on the ground or 12" in the air?? This confuses me. Someone care to explain this to me? I'm gonna switch later this year. I think...

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02-21-2011 09:05 AM  6 years agoPost 35
Big Fil

rrKey Veteran

Santa Rosa, CA

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You forgot to mention fbl with a stabilization system.

Just plain ol fbl NOBAR can do the doggy walk on the skids with no repercussions.
You can do it with a V-Bar.

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02-21-2011 10:21 AM  6 years agoPost 36
Richardmid1

rrProfessor

Leeds, England

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A crash shouldn't cause an ESC to burst into flames unless something hit the ESC directly causing a short or the guy kept the throttle on and had a seriously tough main gear although it should have shut off when the amps got too high.

Those who keep saying nitro, have you never seen a chicken dance?

60% of the time, it works every time!

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02-21-2011 11:28 AM  6 years agoPost 37
Richardmid1

rrProfessor

Leeds, England

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Heres another one, this time a CC 160HV!

https://rc.runryder.com/helicopter/t631520p1/

This is NOT an 'inadequatly rated ESC for the job' issue.

60% of the time, it works every time!

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02-21-2011 12:32 PM  6 years agoPost 38
Pistol Pete

rrProfessor

Seffner, FL

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Can you explain the different esc setting please?
All explanations are located in software which can be run in demo mode. Any one in particular you would like further details about?

Main one to pay attention to is current limit.

When set to "disabled", I interpretated as:
"I dont know or care how high my amps will go despite your limitations and warnings, just let me have it at my own risk"

Well, not actual words but it works for me. Maybe if they used caps and bold font...just maybe. But then again they will probably still blame the ESC.
You should see the guys other videos on YouTube. He crashes his 700e several times even before liftoff. His 600e is the same story. He is a very dangerous (pilot?) I think he needs a mSR for a while.
INSANITY = doing the same thing over and over and expecting different results.

If you are "testing" a system, disabling current limit without knowing what your system is going to be demanding to begin with, is the birth of a long thread and probably me asking for you to share your settings...eventually.

There is a reason someone invented the watts up meter and why hobby king cloned it.

~~Enjoying the hobby one flight at a time~~

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02-22-2011 04:56 PM  6 years agoPost 39
chopper_crazy

rrElite Veteran

Delphos, Ohio

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its always a pain but I make sure to always fly with my canopy. That might have said this mistake

It's a complex, costly, glow powered anti-gravity machine!

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02-22-2011 07:22 PM  6 years agoPost 40
Fnity

rrKey Veteran

Socal - Lafayette,​IN

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it completely looks like he was messing with cyclic on the ground, you can't do that with fbl.
I dont have FBL, yet

But I hear many people say this. Y is it? Like the heli knows that's its on the ground or 12" in the air?? This confuses me. Someone care to explain this to me? I'm gonna switch later this year. I think...
2004lsc, what they are trying to say is that its a bad idea to give cyclic inputs while spooling up a FBL heli.

You know how if your rudder has pitch when you are spooling up eventually you get enough speed to get tail authority and it kicks to what ever pitch it has....

FBL systems are like that, for example if you are giving right aileron on spool up, eventually you get enough HS for the model to abruptly provide that cyclic response and the model can tip over. Its a common mistake for new FBL pilots and takes getting use to. You can give cyclic inputs on the ground you just need to wait on it to spool up and make minor smooth corrections.

The electronics dont know if you are 20 feet up trying tic-tocs or on the ground, so a cyclic input on the ground needs to be smooth and slow when needed....

Hope this makes sense

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