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retract servo equivalent

Old 01-09-2010, 03:20 PM
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Switch_639
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Default retract servo equivalent

[link=http://store.alshobbyshop.com/browseproducts/JR-NES-791-Retract-Servo.HTML]NES 791[/link]

is there any equivalent servo in Hitec brand to this servo? cause I can not get this JR servo where I am so maybe I can try and get Hitec equivalent one instead... if someone knows... thanks
Old 01-09-2010, 03:53 PM
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goirish
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Default RE: retract servo equivalent

Try this on ebay 390137647699
Old 01-09-2010, 07:48 PM
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Spitfire222
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Default RE: retract servo equivalent

I think this is what you're looking for:

http://www.hitecrcd.com/servos/show?name=HS-75BB
Old 01-09-2010, 10:41 PM
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RVman
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Default RE: retract servo equivalent

There is no equivalent as far as I know. The JR has way more torque (260oz-in) and metal gears vs the other brands.
Old 01-09-2010, 10:56 PM
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rcjetflyer0718-RCU
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Default RE: retract servo equivalent

If you need 260oz of torque to operate your retracts you have a problem! and to take 1 1/2 seconds to rotate your going to need a very large battery and if your running a Spectrum reciever pray that it doesn't reboot and is it like most JR servos that you can only use a 4 cell pack?
Old 01-09-2010, 11:56 PM
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Default RE: retract servo equivalent


ORIGINAL: rcjetflyer0718-RCU

If you need 260oz of torque to operate your retracts you have a problem! and to take 1 1/2 seconds to rotate your going to need a very large battery and if your running a Spectrum reciever pray that it doesn't reboot and is it like most JR servos that you can only use a 4 cell pack?
Almost any standard servos can handle a 5 cell, 6 volt pack.
Old 01-10-2010, 03:45 AM
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bigtim
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Default RE: retract servo equivalent


ORIGINAL: timcat26


ORIGINAL: rcjetflyer0718-RCU

If you need 260oz of torque to operate your retracts you have a problem! and to take 1 1/2 seconds to rotate your going to need a very large battery and if your running a Spectrum reciever pray that it doesn't reboot and is it like most JR servos that you can only use a 4 cell pack?
Almost any standard servos can handle a 5 cell, 6 volt pack.
but alot of the retract servos out there don't, 4.8v is what most reccomend, standard servos work fine on 6v power
Old 01-10-2010, 06:57 AM
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Switch_639
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Default RE: retract servo equivalent

for what size plane would one need a retract with 260oz? the Hitec seems way than enough even for up to 60size plane am I correct?
Old 01-10-2010, 07:14 AM
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Default RE: retract servo equivalent

I found this one on Tower Hobbies. Operates at both 4.8 and 6 volt packs.

http://www3.towerhobbies.com/cgi-bin...&I=LXPB42&P=ML

Hobbico CS-63 Servo Lo Profile Retract BB U

INCLUDES: One Low Profile Retract Servo
One Servo Accessory Bag (horns, grommets, screws, bushings)

SPECS: Torque @ 4.8V: 92 oz-in (6.69 kg-cm)
Torque @ 6V: 114 oz-in (8.29 kg-cm)
Weight: 1.23oz 35g
Speed: .5 sec @ 60°
Length: 1.73"
Width: .9"
Height: 1.0"
Old 01-10-2010, 07:18 AM
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Switch_639
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Default RE: retract servo equivalent

I think I will get the Hitec one... also about the price of the Hobbico one... and I think its enough... when would one need a 260oz one?
Old 01-10-2010, 08:47 AM
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RVman
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Default RE: retract servo equivalent

You need the power if you have heavy wheels and struts. Try using a HS 75 to haul up 2X 6 inch struts with 4 inch wheels. The HS75 is a fine servo for lighter duty but it is no equivalent to the 791.
Old 01-10-2010, 11:31 PM
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Default RE: retract servo equivalent

If you read the specifations on the 791 they only list for 4.8 volts http://www.horizonhobby.com/Products...791#quickSpecs. are these the servos they have in the Hanger 9 ARFS? The retracts that have the servo mounted as part of the retract? they also have one in reverse.

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