Trex700 "power systems"

[jones007]

Originally Posted by str8huckin

It was just a joke, no harm intended. Although that question has been beaten to death and a simple search would have gotten the answer a lot faster than waiting for your response which is incorrect btw. The regular kits have the new main gear as well and possibly the metal tail grips. The only real difference between the 2 is the anodizing.

Thanks for the feedback. When I searched, I found this thread, but didn't immediately see the answer. Thanks for clarifying. If the color is the only difference, it's a bit hard to justify the additional $100.

--Kevin

[mrwhipels]

does anybody know if you can power the r617fs direct from a 2s lipo? I want to run my ds610's on 8 volts. if you can't then how are you futaba guys doing it with out getting an expensive regulator. I want to plug my 2s lipo with a switch into my r617fs rx and get the spectrum 5.2 step down to run my tail and throttle servo. I just don't want to fry my rx by powering it with 8 volts.

Any help?

[JAGNZ]

NO - you cannot. See the Futaba specs here:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXTHL6
" Power Requirement: 4.8 - 6V" 6V MAX

That is just one of several drawbacks with FAAST vs. Spektrum....

[mrwhipels]

So do think this would work?

I have the postive and negative wires on the servo's wired direct to the lipo and I the signal wires are plugged in to the apporiate channels. I have the 2s lipo plugged into my current RCE-B3X regulator. The regulator is plugged in the rx to power it at 5.8 volts. When i turn on the regulator it also powers a micro relay (you can get them at any electronic store) which closes the contacts and powers the servo's that run off the lipo direct. This way every thing turns on with the switch on the RCE-B3X and the 8 volt servo's are not always powered.

I am not sure if this would work but I can't really find any other way of doing it with a futaba system or buying a scott gray regulator.

I attached a diagram to better explain it

[JAGNZ]

Yes, that will work. I have a similar setup on my Trex 700N because I needed step downs on throttle and tail etc. anyway. So I split my power/signal wires on my servos and did as you suggest but via a wiring harness and switch.

You can see pics of the harness here:
http://rc.runryder.com/helicopter/gallery/41507/
down at the bottom. It says 'Custom 8v Switch Harness' - click to enlarge.

On the left you see the plugs for the servos (in) and then those extra leads (they are just servo extension wires) are split for power and signal (so I did not have separate the servo wires themselves). The 3 signal plugs go into the Rx, the Deans is for LiPo (in) and the red plug is for Rx power (out) from the switch. The master switch arms the lot but I have gone one further and sent the Rx Power out to an Align 2 in 1 which provides regulated power to the Rx AND does remote glow duties. Clean and tidy setup without buying an expensive reg setup. Plus I HAVE to have remote glow now, I'm spoiled. lol.

I just leave the 2 in 1 switched on and use the Master Switch to turn everything on.

I will be SO thankful when everything can just run 8v.

Hope this helps.

[mrwhipels]

You still have to turn on your 2 in 1 seperatly right. I am trying to eliminate that.

[JAGNZ]

Nope, I leave it switched on. It gets its power only when the master switch is turned on. The master switch sends power to the servos and to a servo plug which goes into the 2 in 1...look at the harness again.

[Helico-pteron]

Originally Posted by JAGNZ

That is just one of several drawbacks with FAAST vs. Spektrum....

Oh this should be good. Please list the several draw backs with FASST.

You can use the R617FS at 8.4V, don't believe anyone that trusts a 2n1.

[Helico-pteron]

700LE-13/13 collective, 9/9 cyclics
OS91HZ
Hatori SB20
Radix 710
Radix 105
DS620 cyclics
S9252 Throttle
S9256/Spartan Rudder
Reactor SG(6.8V)
R617FS
Outrage 5000mAh

Everyone has their own opinions on power systems so it's kind of a moot point.

I've had a couple YS motors and the OS has more power IMHO. You can keep your paper statistics to yourself.

[JAGNZ]

Originally Posted by Helico-pteron

You can use the R617FS at 8.4V.

Someone needs to tell Futaba that, they say 6v MAX:
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXTHL6
Power Requirement: 4.8 - 6V

[Al Miessner]

700 LE
Align 91 w/ align pipe
GY 701 Gyro/gov w/ BLS251 on tail
Herculese 10 amp Regulator 6V
DS610s on cyclics
DS620 on throttle
remote switch glow.
on Bad A$$ combo.

[Matt Nasca]

Align Trex 700N
OS 91 HZ-R
Hatori SB-20FH-2
Rotor Rage 30% Masters
Vbar 5.0 Pro - Spektrum Satellites
Gryphon Extreme Heli Voltage Regulator
Push-Glo
DS610
BLS251
KDE FBL head

[Love_Heli]

T-REX 700LE
ALIGN 91H
HATORI PIPE
MIKADO V4.0 SPEKTRUM AR700
ALIGN 2 in 1 Voltage Regulator
CYLIC FUTABA BLS-451
RUDDER FUTABA BLS-251
RJX FBL HEAD

[just4fun]

im running the new ys its insain

[ualdrivr]

Just converted my trusty old 91 HZ to HZ-R. Haven't even started it yet.

[Chaos 5]

T-Rex700N
3 X BLS451
Rudder is a BLS251
DS650 for Throttle
CGY750 FBL
Radix 710's
Futaba 3Ch RX
NRG 3600 2s
Align 2 in 1
OS91 HZ-R
Hatori SB20 pipe
RR 30%

Loving every minute of it .

[Chris Lalonde]

Just finished the build on my 700fbl
OS91 HZR
Mp6
Vbar 5.1pro
610's on cyclics
savox 1258 throttle
bls251 for tail
gyrphon reg for now
vbar gov with spektrum sensor
Align main and tail blades
futaba 8FG radio
Futaba 6203 SB rx

still doing radio work and setup but hope to have it in the air soon

[elkmaster01]

Originally Posted by mrwhipels

does anybody know if you can power the r617fs direct from a 2s lipo? I want to run my ds610's on 8 volts. if you can't then how are you futaba guys doing it with out getting an expensive regulator. I want to plug my 2s lipo with a switch into my r617fs rx and get the spectrum 5.2 step down to run my tail and throttle servo. I just don't want to fry my rx by powering it with 8 volts.

Any help?

Those Align 'step down' regulators won't do what you are planning. Those step down the voltage from a regulated 6V to 5.1V. Meaning they only reduce the voltage by about .9V. When hooked up to a 2S lipo they only bring the output voltage down to about 8V from the 8.4V lipo.

[ntwaddell]

Align Trex 700N
OS 91 HZ-R
Hatori SB-20FH-2
Kasama Header
Rotor Rage 30% Masters
Vbar 5.1 Pro
SG Reactor X2
SwitchGlo Pro

[CoolKD]

Trex 700LE
3xDS610 cyclic
Align GP780 gyro(gonna get a Futaba GY701 gyro and gov with a Futaba BLS251 servo for the tail)
2xDS650 tail and throtle
Align GOV
Align 2 in 1 power regulator
Spektrum AR7000 reciver
Stock paddles
Stock Main blades Align 690D
Stock tail blades.
Align 91.HP(OS91.HZ)
Align pipe
2S LiPo 5000mAh 25C(forget the brand)