Transmitter Control for Wheel Air Brakes...?
12-23-2014, 05:30 AM
#26
Join Date: Mar 2006
Location: Lockport,
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I use down elevator and smooth stop KISS and never ever had a bounce or wheelbarrow on the nose gear with this setup. Proper landing speed is required and hot landings are a no no go around.
04-03-2015, 03:49 PM
#27
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Join Date: Apr 2003
Location: Knoxville, TN
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I have a DX8 and would like to use the hold switch for electric brakes on my Stinger 90 have tried to assign switch but just says inh and wont change ? I have looked everywhere for info on change this switch function but no such luck Thanks Guys
04-03-2015, 07:53 PM
#29
I think you'll find most US guys use a slider due to their parking brake rules, in the UK most guys use the down elevator mix.
John.
04-04-2015, 08:05 AM
#30
I fly mode 1 with a tray type radio and although my Jeti DC-16 has sliders, they are somewhat hard to reach. I also prefer to control the brakes with the elevator stick, as this is an easy to reach control and gives me full proportional brakes. To prevent a bounce or wheelbarrow I am using some programming in my radio.
First of all I need to detect the landing flare state, this is done with 3 logical switches that all need to be active at the same time:
- gear is down
- flaps are deflected 60% or more
- throttle is below 5%
This presets the brakes to 50% travel and gives me a smooth braking as soon as the mains touch the ground. Since a jet with full (or almost full) flaps down needs at least 30 - 40% throttle, the brakes are not activated too early. Even if they were, the electronic "no loss" brake valve doesn't waste too much air, so I have plenty of air left.
If required, I can increase the braking force with the elevator stick, but I have programmed a curve for the down elevator mix that only uses the first 50% of stick movement. With the expo that comes into play here too, the elevators actually do not travel down very much before the jet stops.
Thomas
First of all I need to detect the landing flare state, this is done with 3 logical switches that all need to be active at the same time:
- gear is down
- flaps are deflected 60% or more
- throttle is below 5%
This presets the brakes to 50% travel and gives me a smooth braking as soon as the mains touch the ground. Since a jet with full (or almost full) flaps down needs at least 30 - 40% throttle, the brakes are not activated too early. Even if they were, the electronic "no loss" brake valve doesn't waste too much air, so I have plenty of air left.
If required, I can increase the braking force with the elevator stick, but I have programmed a curve for the down elevator mix that only uses the first 50% of stick movement. With the expo that comes into play here too, the elevators actually do not travel down very much before the jet stops.
Thomas
Last edited by bluelevel; 04-04-2015 at 08:09 AM.
04-04-2015, 11:32 PM
#32
I’m currently contemplating by first venture in RC Jets and I have been trying to educate myself on the various aspect of Turbine install and operation etc.
One question I have which I can’t seem to answer by the powers of Google is what switch / mix / control etc. do you use to operate the air wheel brakes on your models..?
I’m a mode 2 flyer and interested how this should be configure on the transmitter – I’m also assuming its proportional in operation rather than just an on / off function….?
One question I have which I can’t seem to answer by the powers of Google is what switch / mix / control etc. do you use to operate the air wheel brakes on your models..?
I’m a mode 2 flyer and interested how this should be configure on the transmitter – I’m also assuming its proportional in operation rather than just an on / off function….?
As for parking brake se the picture :-D
Last edited by Henke Torphammar; 04-04-2015 at 11:35 PM.
