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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › 700 crash, radio or regulator.. UPDATE
05-30-2012 05:38 AM  6 years agoPost 1
honda411

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Surprise, AZ USA

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Hi guys, I was test flying my friends 700N FB when all of a sudden coming out of a dive and pulling out, the heli snapped in a left role uncontrollably.

This is what he is running.

RX: AR8000 W/ Spektrum DX7
Align B6T regulator (with the push button for glow plug)
Align 610 servos, and 650 tail.
Solid G gyro
Align Gov.
Align 40C 1900mah batt 2Cell

Do you possibly think the regulator couldnt produce enough amps to drive everything? Or did the radio lockout? Or do you think one servo failed?

AND to mention, sometimes when we would turn on the heli on the bench, nothing would work for say 10 seconds. It had me a little worried from the start but everyone said it was fine.

Unfortunatly, he shut the heli off before we could check the lights on his Rx and Satelite. If I recall, it snapped left roll really fast (nothing broke in flight), then I tried to save it which it seemed like I was able to somewhat, and able to hit throttle hold.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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05-30-2012 10:57 AM  6 years agoPost 2
cbflys

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Nesconset, NY - USA

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Check where his fail safe positions are set. If they cause the controls to move to a position that would cause that maneuver then you probably lost link.

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05-30-2012 11:05 AM  6 years agoPost 3
Helipilot01

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ColliervilleTn

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Since you said you were able to hit throttle hold, the radio was working!!

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05-30-2012 02:04 PM  6 years agoPost 4
cbflys

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Nesconset, NY - USA

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Perhaps it re-connected and he got control back?

Again, check your failsafe positions. If they do not move to the position you described when you lost control, then it was something else. If they do, then you have your answer.

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05-30-2012 04:49 PM  6 years agoPost 5
honda411

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Surprise, AZ USA

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Thanks for the replies. I will check it. I believe it went out and came back shortly after in flight

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-06-2012 07:57 AM  6 years agoPost 6
ticedoff8

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Morgan Hill, CA. USA

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That regulator does not allow enough current to run a 90-size heli.

You probably had a brown out pulling too much current through the regulator.
When you pull too much current, the output voltage drops as the current rises. At some point, the voltage gets too low and the RX will reboot or servos stall.

You may have had the RX reboot, and the servo load decreased enough (lower current) to allow the voltage to rise back up to a normal level so the RX could come on line.

That Align regulator is okay for 50 size (Trex 600), but not a 90 (Trex 700)

Get a regulator from Perfect Regulators or another reputable company - Scott Grey Reactor II is also great.

I would also increase the battery capacity - or check it with something like the Align RCE-MT8 Multi-function Tester between flights. 1900mAh is good for about 4 flights before you are down to 30%.

NEVER use a Castle Creations BEC Pro 20 - no matter which version. They are a crash waiting to happen.

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06-08-2012 10:55 AM  6 years agoPost 7
DMR

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Aalst - Belgium

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I had the same issue

Lights on the RX were ok, battery was ok and I left the transmitter ON for checking

After the crash, everything went smoothly again....

Configuration : 252BLS on cyclic and JR8900 + Spartan Gyro
with Align Regulator

After reading this.... I think I find the cause of the crash...I'll check with my EagleTree next time

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06-12-2012 07:26 AM  6 years agoPost 8
honda411

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Surprise, AZ USA

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Thanks ticedoff! It helps! I think he is going with the other Align regulator, the one that has the cooling fins on it.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-13-2012 06:22 PM  6 years agoPost 9
ticedoff8

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Morgan Hill, CA. USA

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The one with the cooling fins on it? That sounds like it is the Align B6T 2 in 1 Voltage Regulator & glow ignitor.

That is only good for 5amp - not enough for a 700 / 90 size heli.
Asking for a different kind of trouble with similar results.

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06-13-2012 10:41 PM  6 years agoPost 10
honda411

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Surprise, AZ USA

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oh shoot sorry. I forgot they both have fins lol. This one is the small square one. It doesnt have a glo ignition on it.

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-14-2012 08:54 AM  6 years agoPost 11
DMR

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Aalst - Belgium

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Dual UBEC in parallel ?
What do you guys think about the following setup:

on my 700N (BLS252):
- Align Regulator + Glow : easy to start
- Flightpower 2200MaH receiver bat

+

- Normal regulator (linear)
- Extra 1900-2200MAh bat

both in parallel on the receiver which will lead to a correct backup setup in case of that the Align B6 2in1 will fail because of too high currents

Thx for your feedbacks

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06-14-2012 02:20 PM  6 years agoPost 12
cbflys

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Nesconset, NY - USA

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Generally, it's not a good idea to put to regulators in parallel. By design, a regulator works by keeping the output voltage at its desired setpoint. When two are in parallel, they are working against each other.

There are regulators that are designed to work in parallel, but you need to check the specifications first.

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06-15-2012 07:01 AM  6 years agoPost 13
DMR

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Aalst - Belgium

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Thx cbflys

Indeed the voltages must match.
I'll have a look for a separate glow system so I can get rid off the Align B6 2in1

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06-15-2012 04:38 PM  6 years agoPost 14
wifeorheli

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reno, nevada usa

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if the b6t is the align 2n1 GET RID OF IT!!! its only got one power lead maxing out at 6amps of load. I was getting blinking sattelite issues and come to find out i was pulling more then the 2n1 could handle. I upgraded to a SG Reactor X2 running 2 power leads giving me 12 amps problem went away.

Novarossi Motors U.S.A
www.PLanethobby.com
Team GrandRc.com
Team Byron Fuels
ZRC U.S.A. "PushGlo, SwitchGlo"

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06-17-2012 03:51 AM  6 years agoPost 15
honda411

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Surprise, AZ USA

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This is the one im talking about. I run this on my 700N with JR8717's BUT, I do run two connectors into my RX. One to my SPC port (Hitec) and one to regular rx batt input

http://www.amainhobbies.com/product...ltage-Regulator

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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06-17-2012 06:37 PM  6 years agoPost 16
wifeorheli

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reno, nevada usa

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yea its 6 amps. I dont care what anyone says 6amps is NOT enough to power todays systems unless you doing basic flying. And i know u honda your not doing basic flying. Ditch it spend the money on a good reg and be done with it.

Novarossi Motors U.S.A
www.PLanethobby.com
Team GrandRc.com
Team Byron Fuels
ZRC U.S.A. "PushGlo, SwitchGlo"

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06-18-2012 10:44 AM  6 years agoPost 17
DMR

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Aalst - Belgium

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just ordered Gryphon regulator to replace the 2in1...this should do the job

I'll glow the old fashion way... no problems here

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06-18-2012 11:13 AM  6 years agoPost 18
Helipilot01

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ColliervilleTn

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This is the one I've been using in both airplanes and helis. It is 6v and 15 amps and has redundant connectors and a built in soft switch.

http://www.horizonhobby.com/product...ystem-JRPVR6015

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06-18-2012 06:23 PM  6 years agoPost 19
wifeorheli

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reno, nevada usa

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DMR just get a pushglow there cheap and work REALLY well. I read bad things about them but there wrong its works awsome!

Novarossi Motors U.S.A
www.PLanethobby.com
Team GrandRc.com
Team Byron Fuels
ZRC U.S.A. "PushGlo, SwitchGlo"

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06-18-2012 11:51 PM  6 years agoPost 20
honda411

rrKey Veteran

Surprise, AZ USA

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Thanks wifeorheli! Im def gonna have to get a new one then running FBL now since it will draw more current.

And thanks for the link to that regulator! Looks like its next on my list

HeliDirect Field Rep, Synergy N7 w/ OS 105, Torq Servos, Cyclone/ Rail blades

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HomeAircraftHelicopterRadio - Servo - Gyro - Gov - Batt › 700 crash, radio or regulator.. UPDATE
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