Tail wheel question

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HAWK
Posts: 15
Joined: 06 Jun 2013, 23:49

Tail wheel question

Post by HAWK » 07 Jun 2013, 00:00

Hi Guys,

First of all WOW what an beautiful model, looks gorgeous and flies as I would expect of the real deal!

One question, probably missing something on my part but anyway! The locking of the tail wheel, switch on the main panel up, light on, tail wheel is locked I'm happy with that, but when I un-lock the tail wheel by moving the switch down, the tail wheel seems very reluctant to free-castor, it takes almost full power and a lot of brake to get even the slightest movement out of the tail wheel, otherwise the turning circle is HUGE! Am I doing something wrong here?
Gavin

snave
Posts: 220
Joined: 03 Sep 2006, 01:21
Location: United Kingdom

Re: Tail wheel question

Post by snave » 07 Jun 2013, 15:19

First question: Have you opened the pneumatic valve, left of Pilots seat? Do you have pressure on the brake gauge, similar location?

Next, use nose down elevator to ease the weight on the tailwheel.

Do these suggestions help?
Simon Evans

DoubleG01
Posts: 6
Joined: 07 Jun 2013, 16:33

Re: Tail wheel question

Post by DoubleG01 » 07 Jun 2013, 17:56

Hello, I am also having the same problem turning. Pneumatic valve is opened, brake gauge has pressure, and have also used nose down elevator.
Still takes quite a bit of space to make a turn, which is quite troublesome turning around on the shorter strips.

*EDIT*: Also, as like mentioned above, when I do get it to turn, it takes a loooot of power, causing it to overheat quickly. Am I doing something incorrectly?

Thanks,



Greg

D-ETSN
Posts: 2
Joined: 07 Jun 2013, 22:24

Re: Tail wheel question

Post by D-ETSN » 07 Jun 2013, 22:33

I had the same Problem.
Try this. Open aircraft.cfg (first make a copy)
Search the section "Contact_points"
find this row
point.0 = 1, -25.85, 0.00, -2.48, 1300, 0, 1.0, 180.0, 0.2, 2.0, 0.9, 0.0, 0.0, 0

Change the value 180.0 to maybe 45 or 60 that is the angel for the tailwheel to turn.

it should look like this line

point.0 = 1, -25.85, 0.00, -2.48, 1300, 0, 1.0, 60.0, 0.2, 2.0, 0.9, 0.0, 0.0, 0

I hope i could help. For me it works now.

metzgergva
Posts: 124
Joined: 03 May 2010, 00:51

Re: Tail wheel question

Post by metzgergva » 07 Jun 2013, 23:00

For those who do not have brake pedals, this is a good option, though it represents not the reality as it couples the rudder to the tail wheel.
Happy flying!
Alexander

HAWK
Posts: 15
Joined: 06 Jun 2013, 23:49

Re: Tail wheel question

Post by HAWK » 08 Jun 2013, 05:16

Hi guys, yep confirmed air is on, pressure on the master and individual brake gauges. Wondering now if there's a solution as I am loath to make the tail wheel steerable, much prefer the castoring type!
Gavin

User avatar
WarHorse47
Posts: 36
Joined: 06 Jun 2013, 11:03
Location: Great Pacific Northwest

Re: Tail wheel question

Post by WarHorse47 » 08 Jun 2013, 06:54

Okay, lets see if I can help.

What I found is that the ability to turn the plane is related to the taxi speed. Because of the differential braking, you have to be in motion to use either pedal to turn the plane. On the other hand if you taxi too fast, the turn radius is large.

Try modulating your taxi speed and see if that doesn't make it easier to turn.

--WH

HAWK
Posts: 15
Joined: 06 Jun 2013, 23:49

Re: Tail wheel question

Post by HAWK » 08 Jun 2013, 07:09

Hi Warhorse,

Thanks for the suggestion, I will have a bit of an experiment tonight, as you say too fast and the radius is huge, I have had some success with very slow turns. Would have thought with that huge rudder and supposedly super powerful brakes turning should be a breeze, plus the whole taildragger centre of gravity behind the mains thing, once turning it should be more about stopping the turn from becoming a ground loop, not keeping it going..
Gavin

metzgergva
Posts: 124
Joined: 03 May 2010, 00:51

Re: Tail wheel question

Post by metzgergva » 08 Jun 2013, 12:27

During slow taxi, the rudder has only a function when additional air flow is generated by the propeller. So it is a balancing act of power setting, applying brakes (be aware FSX has no single side braking when you press full) and using full rudder. A further FDX development is ongoing to improve, but if you have difficulties for the time, use the tweak proposed by D-ETSN with linking rudder to tail wheel.
Happy flying!
Alexander

HAWK
Posts: 15
Joined: 06 Jun 2013, 23:49

Re: Tail wheel question

Post by HAWK » 08 Jun 2013, 14:37

Right got it sorted for now, changed the following:

toe_brakes_scale =2.0 //Brake scalar

from 1.0 to 2.0, makes the brakes more effective, (supposedly the real deal is VERY effective, a nose-over risk exists with heavy braking) and consequently I have better differential braking.

Looking forward to seeing what changes, if any, come in the FDX development!
Gavin

metzgergva
Posts: 124
Joined: 03 May 2010, 00:51

Re: Tail wheel question

Post by metzgergva » 09 Jun 2013, 00:45

The nose-over risk in deed exists when you have a forward CoG loading situation. Our default load ,is full passengers and that is the opposite so it should not tip over. As said, we are working on a better ground handling.
Happy flying!
Alexander

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