1/5 Skymaster F-16 nose wheel steering
#3
Thread Starter
My Feedback: (8)
Thanks FenderBean.
Seems a couple have had the same issue and there is no resolution. Bothers me as this is the first Chinese jet I ave ever worked on. To me it is pure ****!!! Why the **** would people be so foolish to give this amount of money for something that works so poorly? I just don't get it.
Seems a couple have had the same issue and there is no resolution. Bothers me as this is the first Chinese jet I ave ever worked on. To me it is pure ****!!! Why the **** would people be so foolish to give this amount of money for something that works so poorly? I just don't get it.
#5
My Feedback: (20)
Hi John,
I search all over and never found any instructions for servicing the system.
The best info I got was talking to Craig South at Joe Nall this year. He suggested the following procedure:
Remove both the servo cylinder and the strut cylinder from the airframe.
Find a suitable container and fill with steering fluid.
Submerge both cylinders in the fluid.
Remove a line from one side of the servo cylinder.
Pump the servo cylinder back and forth to suck in fluid and force any air from that side of the system.
Replace that line and repeat process on other side of system.
I have not tried it. Sound messy but it sounds like it could work.
Hope this helps,
Gary Jones
I search all over and never found any instructions for servicing the system.
The best info I got was talking to Craig South at Joe Nall this year. He suggested the following procedure:
Remove both the servo cylinder and the strut cylinder from the airframe.
Find a suitable container and fill with steering fluid.
Submerge both cylinders in the fluid.
Remove a line from one side of the servo cylinder.
Pump the servo cylinder back and forth to suck in fluid and force any air from that side of the system.
Replace that line and repeat process on other side of system.
I have not tried it. Sound messy but it sounds like it could work.
Hope this helps,
Gary Jones
#6
My Feedback: (10)
Thanks FenderBean.
Seems a couple have had the same issue and there is no resolution. Bothers me as this is the first Chinese jet I ave ever worked on. To me it is pure ****!!! Why the **** would people be so foolish to give this amount of money for something that works so poorly? I just don't get it.
Seems a couple have had the same issue and there is no resolution. Bothers me as this is the first Chinese jet I ave ever worked on. To me it is pure ****!!! Why the **** would people be so foolish to give this amount of money for something that works so poorly? I just don't get it.
#7
My Feedback: (6)
Jon,
so I pulled mine out and replaced the clear orange lines with solid black to get a more scale look. I bled them with a syringe and pool of steering fluid and it still has play. With the forward caster, even with play it tracks really well so i don't think it's much of an issue. Normally I run about 20% expo on the nose to soften the steering but with the play I left it at 0 and it seems good but have not done a high speed taxi yet...
so I pulled mine out and replaced the clear orange lines with solid black to get a more scale look. I bled them with a syringe and pool of steering fluid and it still has play. With the forward caster, even with play it tracks really well so i don't think it's much of an issue. Normally I run about 20% expo on the nose to soften the steering but with the play I left it at 0 and it seems good but have not done a high speed taxi yet...
#8
My Feedback: (1)
I have also installed a nose steering gyro as well. This also helps in braking. Just a cheap Futaba 240 or 401. Been able to buy for $25 bucks on ebay or other sites as heli guys have no need for that type of gyro any more
Jon,
so I pulled mine out and replaced the clear orange lines with solid black to get a more scale look. I bled them with a syringe and pool of steering fluid and it still has play. With the forward caster, even with play it tracks really well so i don't think it's much of an issue. Normally I run about 20% expo on the nose to soften the steering but with the play I left it at 0 and it seems good but have not done a high speed taxi yet...
so I pulled mine out and replaced the clear orange lines with solid black to get a more scale look. I bled them with a syringe and pool of steering fluid and it still has play. With the forward caster, even with play it tracks really well so i don't think it's much of an issue. Normally I run about 20% expo on the nose to soften the steering but with the play I left it at 0 and it seems good but have not done a high speed taxi yet...
#9
Join Date: Feb 2003
Location: Palmerston North, NEW ZEALAND
Posts: 92
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Thought I would share my experience with the SM A4 hyd nws as mine works a treat I'm guessing must be similar in operation to your F16.
I couldn't get rid of bubbles so swapped the supplied (SM) rams out for UP10 5/16"x 3/4" air rams which worked great. I used Tamiya #500 grade silicon damper oil (green) as fluid. I tried all the different Tamiya grades but the 500 viscosity worked best, tried other fluids as well.
The single UP ram at the servo end is driven by an 8511, to avoid sudden load on the hyd system and servo I run a 1.26 sec servo slow on nws which gives a smooth progressive feel and makes the taxi look great.
As a matter of interest my aircraft weighs 19.90kg fully fuelled and on the Xicoy balancing scales shows a weight on nose wheel of 5.266kg.
Hope this helps!
I couldn't get rid of bubbles so swapped the supplied (SM) rams out for UP10 5/16"x 3/4" air rams which worked great. I used Tamiya #500 grade silicon damper oil (green) as fluid. I tried all the different Tamiya grades but the 500 viscosity worked best, tried other fluids as well.
The single UP ram at the servo end is driven by an 8511, to avoid sudden load on the hyd system and servo I run a 1.26 sec servo slow on nws which gives a smooth progressive feel and makes the taxi look great.
As a matter of interest my aircraft weighs 19.90kg fully fuelled and on the Xicoy balancing scales shows a weight on nose wheel of 5.266kg.
Hope this helps!