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HelicopterRadio - Servo - Gyro - Gov - Batt › reactor x worth it?
03-21-2009 12:43 AM  8 years agoPost 21
Pinecone

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Maryalnd

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If you want high voltage, get the Perfect CCPM. On 3S my unit will go to 10.32 volts.

Terry
Blade CP Trex 450 SE
QJ EP8v2 EX Gaui Hurricane 550
Vibe 50 Bergen Intrepid Gasser

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03-23-2009 04:42 PM  8 years agoPost 22
jester4

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Brampton, Ontario

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The solder "joint" attaching the vertical board was the reason I did not go for the reactorX. It may be fine and a non-issue, but I did not like it......

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03-24-2009 02:37 AM  8 years agoPost 23
tgo

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HK

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But I don't like the perfect regulator for the reasons below:-
1. The on/off switch design is poor, hard to reach
2. The output leads for the 3 x CCPM servo should use a thicker wire.

[/quote]
If you want high voltage, get the Perfect CCPM. On 3S my unit will go to 10.32 volts. [quote]

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03-24-2009 02:51 AM  8 years agoPost 24
bmapope

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TN

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+20 for the ccpm perfect regulator! i love mine.

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03-24-2009 05:44 PM  8 years agoPost 25
Pinecone

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Maryalnd

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The output leads for the 3 x CCPM servo should use a thicker wire
Why? It only has to carry the current for one servo. 1 - 2 amps max.

Terry
Blade CP Trex 450 SE
QJ EP8v2 EX Gaui Hurricane 550
Vibe 50 Bergen Intrepid Gasser

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03-24-2009 06:55 PM  8 years agoPost 26
AAKEE

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Boden, Sweden

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ReactorX became my choise.

Its hard to tell wich regulator thats the very best of them all, probably you cant tell cause the needs differ and following from that, the best choise differs.

A Liniare (non switching) regulator puts out 'cleaner' better current then a switching does. The switching type gives more noise in the voltage.
A switching regulator uses less current, and give you the possibility to use a smaller battery. The non switching/ liniare usually is heavier.

I think the good parts of reactorX is that it sure can handle high currents and demanding servos, and that you have three cords providing power to the receiver.
If you instead would use only the battery cord/connector as in other regulators, only that connector need to develope a bad connection(for example due to to high currents) to get a crash caused by lost control.
In reactor X you feed the receiver with voltage via the three ccpm channels. This tripples the possible current and the safety.
You also get a built in voltage regulator for tailservo, gyro and the other servos so you dont need step downs (simplifies and reduces risk of a broken stepdown).

I did a thourough job online before making my choise, and the bad part with reactorX is that its a little bit heavier then most of the others, and that you have to mounth it proper so it not develops cracks in the soldering between the board and the connectors. You should also check this if the heli hit the ground hard if there was a posibility of that the reactorX was damaged by the crash.

I wouldnt say that its the best in the world, but it sure was the right one for my needs on present heli...and it probably will be the right one on the next one :-)

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03-25-2009 04:01 AM  8 years agoPost 27
tgo

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HK

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Are you kiddding? 1-2Amp max? Do you know the current draw for a JR 8717 (stalled)? This wire is thinner than the original servo wire.... I really wonder if it can over 1Amp without voltage drop !`
Why? It only has to carry the current for one servo. 1 - 2 amps max.

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03-25-2009 01:37 PM  8 years agoPost 28
bmapope

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TN

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I wonder how many "stalled" 8717's one would have during a flight?

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03-25-2009 08:47 PM  8 years agoPost 29
Pinecone

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Maryalnd

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Are you kiddding? 1-2Amp max? Do you know the current draw for a JR 8717 (stalled)?
Yes, it is 2.2 amps.

Terry
Blade CP Trex 450 SE
QJ EP8v2 EX Gaui Hurricane 550
Vibe 50 Bergen Intrepid Gasser

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03-25-2009 10:53 PM  8 years agoPost 30
AAKEE

rrApprentice

Boden, Sweden

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A small Hitec Hs65MG ( for use in trex450 and similar ) is rated 1 Amp stalled.
Would be surprized if a 8717 only draws 2.2A stalled.

[Edit]couldnt find any official number on 8717, but I found a lot on Hitecs servos. The same size but not att all as strong and fast as 8717 seems to have the specs about 3A @ 6volts.

Knowing this makes me say that a stall current of 5-7A on a 8717 would be possible.

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03-25-2009 11:58 PM  8 years agoPost 31
rexxigpilot

rrProfessor

Florida

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Who cares about stalled amps.! There is an older thread here on RR about servos. It showed test data from a data logger. The peak draw from an entire sytem (receiver, gyro, all servos, governor, etc.) using 8717 collective servos on a 90 size heli did not even reach 3.0A during hard 3D. If I can recall the peak current was about 2.0 A.

As for the Reactor X, I say it is worth it. I've had one in a Vibe 50 with 8717's for around a year. Works like a champ. Even at $140, it's a small price to pay for peace of mind and elimination of the step down.

Recently, I have gone the direct A123 route so I won't need regulators anymore. KISS rules!

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03-26-2009 05:29 PM  8 years agoPost 32
tgo

rrApprentice

HK

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Have you consider the voltage drop to servo under high current? a smaller wire means higher resistance, so lower voltage = lower servo speed !
Who cares about stalled amps.!
If I can recall the peak current was about 2.0 A.

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03-26-2009 06:06 PM  8 years agoPost 33
Pinecone

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Maryalnd

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A guy locally is running an Eagle Tree on his flybarless Vibe 50 with 8717s. Max draw is about 4.5 amps.

Terry
Blade CP Trex 450 SE
QJ EP8v2 EX Gaui Hurricane 550
Vibe 50 Bergen Intrepid Gasser

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03-26-2009 08:41 PM  8 years agoPost 34
rexxigpilot

rrProfessor

Florida

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Servos have to work much harder without the benefit of a flybar. 4.5A seems reasonable on the FBL Vibe and 8717's.

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HelicopterRadio - Servo - Gyro - Gov - Batt › reactor x worth it?
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