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JR Matchboxes
Hey all, was just wanting some info on the JR matchboxes. I'm thinking about putting some on my f-15 when I get it (hopefully soon!). I was planning on putting one on the elev., rudd., and maybe flaps. My only concern is that if the matchbox goes bad, say on the elev......do you loose both elevators? Was just curious. Any feedback on reliability and ease of use? Thanks everyone and keep the dirty side down!
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RE: JR Matchboxes
you buy hitek digital servos and the servo programmer set tu the servo individually then run a standard Y cable.
I am using matchbox on rudder for two rudder servos and nose gear steering. |
RE: JR Matchboxes
Matchboxes are reliable, and very easy to use. I have been using them for a couple years and never had one fail.
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RE: JR Matchboxes
I use two matchboxes in my plane. Rudder and flaps. I wouldn't use them on ailerons or elevators. JMO
They are easy to use. |
RE: JR Matchboxes
If using two servos on one critical flight control, via a matchbox, it can be argued that it is better to feed one servo DIRECT from the receiver and trim the other or others via the Matchbox. Thus if the Matchbox should fail, then one servo remains operational.
Having said that, I have never had a Matchbox fail, however, the possibility exists so routeing BOTH servos via Matchbox does not seem to be good practice. Regards, David Gladwin |
RE: JR Matchboxes
ORIGINAL: David Gladwin If using two servos on one critical flight control, via a matchbox, it can be argued that it is better to feed one servo DIRECT from the receiver and trim the other or others via the Matchbox. Thus if the Matchbox should fail, then one servo remains operational. Having said that, I have never had a Matchbox fail, however, the possibility exists so routeing BOTH servos via Matchbox does not seem to be good practice. Regards, David Gladwin I agree with Bob Covish. I use them on flaps and rudder but avoid them on elevator when I can. Aileron installs normally work well with a Y harness so there is no need for additional mixing. Regards, Keith. |
RE: JR Matchboxes
I think you have missed my point. What I am advocating is to take one channel from the receiver and feed its output direct to one servo (assuming two servos are used on ONE flight control surface). Using a Y-lead the second servo is connected to the same receiver channel via the Matchbox which is adjusted to exactly match the directly fed servo. So, if the Matchbox should fail then you have lost only one servo and not both which would be the case if BOTH servos were routed via the Matchbox.
Regards, David Gladwin. |
RE: JR Matchboxes
ORIGINAL: David Gladwin I think you have missed my point. What I am advocating is to take one channel from the receiver and feed its output direct to one servo (assuming two servos are used on ONE flight control surface). Using a Y-lead the second servo is connected to the same receiver channel via the Matchbox which is adjusted to exactly match the directly fed servo. So, if the Matchbox should fail then you have lost only one servo and not both which would be the case if BOTH servos were routed via the Matchbox. Regards, David Gladwin. |
RE: JR Matchboxes
Sorry about that ! Perhaps I have a fixation because on what I am doing on my Mig 29 tailerons which are working beautifully. I still have to decide exactly what servos of the 3 on each wing panel , 2 leading edge flap sections and the trailing edge flap, will be routed via the Matchbox.
Regards, David Gladwin |
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