Flight simulator - A couple of questions...

Author

A couple of questions...

Greasy Rider© @invalid.com

2005-04-22, 8:34 pm

Down loaded a great TF-4J recently.

Unrealistic roll rate so I tweaked the .cfg file and tuned that to
something more reasonable.

(I’m comfortable with experimenting with the .cfg file since I keep a
back up just in case.)

Second problem hasn’t been too easy to find a solution for other than
e-mailing the author.The A/C wants to tip over in tight taxying unless
I crawl with big feet on the brakes.

Anyone have any ideas on what parameters to play with to make the A/C
more stable on the ramp? Is the solution in the .mdl file?

Earl Needham

2005-04-24, 8:43 pm

<Greasy Rider© @invalid.com> wrote in message
news:lk8i61dnfpfbihp5pi885vdrpeqbqttdjn@4ax.com...

quote:

> Down loaded a great TF-4J recently.
>
> Unrealistic roll rate so I tweaked the .cfg file and tuned that to
> something more reasonable.
>
> (I'm comfortable with experimenting with the .cfg file since I keep a
> back up just in case.)
>
> Second problem hasn't been too easy to find a solution for other than
> e-mailing the author.The A/C wants to tip over in tight taxying unless
> I crawl with big feet on the brakes.
>
> Anyone have any ideas on what parameters to play with to make the A/C
> more stable on the ramp? Is the solution in the .mdl file?

Unless I miss my guess, the [contact_points] section of aircraft.cfg has
this info. I found this nice explanation in a B-52 installed in my system,
perhaps it'll help you.

BTW, I've never heard of a TF-4J, although the F-4J was quite common.
Is it perhaps a TA-4J instead? That was pretty common, too.

Earl
--
Earl Needham
Clovis, New Mexico USA

[contact_points]

//0 Class <0=none,1=wheel, 2=scrape,
3=float>
//1 Longitudinal Position (feet)
//2 Lateral Position (feet)
//3 Vertical Position (feet)
//4 Impact Damage Threshold (Feet Per Minute)
//5 Brake Map (0=None, 1=Left, 2=Right)
//6 Wheel Radius (feet)
//7 Steer Angle (degrees)
//8 Static Compression (feet) (0 if rigid)
//9 Max/Static Compression Ratio
//10 Damping Ratio (0=Undamped, 1=Critically Damped)
//11 Extension Time (seconds)
//12 Retraction Time (seconds)
//13 Sound Type
//14 Airspeed limit for retraction (KIAS)
//15 Airspeed that gear gets damage at (KIAS)

point.0=1, 87.42, 0.00, -16.30, 1181.1, 0, 3.500, 40.0, 1.7, 2.5, 0.7200,
15.0, 15.0, 0, 0.0, 0.0
point.1=1, -19.50, -12.00, -16.60, 1574.8, 1, 4.167, 20.0, 2.1, 2.5, 0.7500,
15.0, 15.0, 2, 0.0, 0.0
point.2=1, -19.50, 12.00, -16.60, 1574.8, 2, 4.167, 20.0, 2.1, 2.5, 0.7500,
15.0, 15.0, 3, 0.0, 0.0
point.3=2, -14.17, -47.33, 0.00, 787.4, 0, 0.000, 0.0, 0.00, 0.0,
0.0000, 0.0, 0.0, 5, 0.0, 0.0
point.4=2, -14.17, 47.33, 0.00, 787.4, 0, 0.000, 0.0, 0.00, 0.0,
0.0000, 0.0, 0.0, 6, 0.0, 0.0
point.5=2, -83.33, 0.00, 2.50, 787.4, 0, 0.000, 0.0, 0.00, 0.0,
0.0000, 0.0, 0.0, 9, 0.0, 0.0
point.6=2, 42.67, 0.00, -3.75, 787.4, 0, 0.000, 0.0, 0.00, 0.0,
0.0000, 0.0, 0.0, 4, 0.0, 0.0

static_pitch = 0
static_cg_height = 15.0
gear_system_type=0

Greasy Rider© @invalid.com

2005-04-25, 12:39 am

On Sun, 24 Apr 2005 17:36:37 -0600, "Earl Needham"
<munged@3lefties.com> postulated :

quote:

> BTW, I've never heard of a TF-4J, although the F-4J was quite common.
>Is it perhaps a TA-4J instead? That was pretty common, too.

Thanks for the input... I'll play with those values.

You are , of course correct. A typo on my part. It is a TA-4J

Trainer, attack, fourth model, North American.

Earl Needham

2005-04-25, 3:38 am

quote:

> On Sun, 24 Apr 2005 17:36:37 -0600, "Earl Needham"
> <munged@3lefties.com> postulated :
>
>
> Thanks for the input... I'll play with those values.
>
> You are , of course correct. A typo on my part. It is a TA-4J
>
> Trainer, attack, fourth model, North American.

Ah, er, uh -- Douglas.

--
Earl Needham
Clovis, New Mexico USA

2005-04-25, 8:57 pm

On Sun, 24 Apr 2005 22:28:56 -0600, "Earl Needham"
<munged@3lefties.com> postulated :

quote:

> Ah, er, uh -- Douglas.

Boy, I'm concentrating too much on the problem rather than reading my
own posts!