Simviation Forum - Adding Brakes...?

Jun 5^th, 2010 at 4:14pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Hello chums...

...!

Purely out of academic interest, you understand.... Wink

...

...

Is it possible to "add" brakes to an Aircraft not normally fitted with them?

My vintage SE5a is a joy to take-off, and fly around, even to land, with great care, but she really is a pain in the left brake-shoe when it comes to actually "stopping"!... Shocked

...!

I add the usual:.....

[brakes]
parking_brake = 1 //Parking brake available
toe_brakes_scale = 0.68 //Brake scalar// I'd try it in 0.02 increments.
differential_braking_scale = 1.0 // rudder activated differential brakes .

...to the aircraft.cfg File, but it appears to make no difference... Cry

..!

Is the lack of brakes inherent in the design of the Sim Aircraft, and cannot be modified (easily) to include them?

Paul....FS 2004...and taking a break... Cool

...!

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Reply #1 - Jun 5^th, 2010 at 4:29pm

JoBee Offline
Colonel
Better to give than receive.

Posts: 582

You will have to adjust the [contact points] section in the aircraft.cfg.

This is from the default J-3

point.0=

1

, -15.00,

0.0

, -1.05, 1200,

0

, 0.238, 60.0, 0.300, 2.5, 0.20, 0.0, 0.0, 0.0, 0.0, 0.0
point.1=

1

, 1.24,

-3.0

, -5.25, 1600,

1

, 0.728, 0.0, 0.54, 2.5, 0.65, 0.0, 0.0, 2.0, 0.0, 0.0
point.2=

1

, 1.24,

3.0

, -5.25, 1600,

2

, 0.728, 0.0, 0.54, 2.5, 0.65, 0.0, 0.0, 3.0, 0.0, 0.0

The numbers in

red

indicate point class. 1=wheel

The numbers in

blue

indicate lateral position. 0 is on the centerline (tailwheel), positive numbers are starboard, negative= to port.

The numbers in

green

indicate brake map. 0=none, 1=left, 2=right.

Hope this helps, if not, post the [contact points] section and I will take a look at it.

cheers,
Joe

Don't argue with idiots, they drag you down to their level and beat you with experience.

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Reply #2 - Jun 5^th, 2010 at 4:38pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

JoBee wrote on Jun 5^th, 2010 at 4:29pm:

You will have to adjust the [contact points] section in the aircraft.cfg.

This is from the default J-3

point.0=

1

, -15.00,

0.0

, -1.05, 1200,

0

, 0.238, 60.0, 0.300, 2.5, 0.20, 0.0, 0.0, 0.0, 0.0, 0.0
point.1=

1

, 1.24,

-3.0

, -5.25, 1600,

1

, 0.728, 0.0, 0.54, 2.5, 0.65, 0.0, 0.0, 2.0, 0.0, 0.0
point.2=

1

, 1.24,

3.0

, -5.25, 1600,

2

, 0.728, 0.0, 0.54, 2.5, 0.65, 0.0, 0.0, 3.0, 0.0, 0.0

The numbers in

red

indicate point class. 1=wheel

The numbers in

blue

indicate lateral position. 0 is on the centerline (tailwheel), positive numbers are starboard, negative= to port.

The numbers in

green

indicate brake map. 0=none, 1=left, 2=right.

Hope this helps, if not, post the [contact points] section and I will take a look at it.

cheers,
Joe

Ta, Joe...

...!

I'll give it a try.... Smiley

...!

I must admit, they weren't the sort of entries I was expecting to affect the "brakes"....

There's more in this magic .cfg stuff than meets the eye... Wink

...

...!

..thanks again... Wink

...!

Paul...G-BPLF...FS 2004....breaking wind... Embarrassed

...

...!

SE5a:

[contact_points]
static_pitch = 11.470
static_cg_height = 4.600
tailwheel_lock = 0
gear_system_type = 4
max_number_of_points = 7

point.0 = 3.000, -14.387, 0.000, -2.700, 1500.000, 0.000, 0.000, 180.000, 0.200, 1.000, 1.000, 0.000, 0.000, 1.000, 0.000, 0.000
point.1 = 1.000, 1.100, -2.400, -5.200, 2000.000, 0.000, 1.150, 0.000, 0.200, 1.000, 0.900, 0.000, 0.000, 2.000, 0.000, 0.000
point.2 = 1.000, 1.100, 2.400, -5.200, 2000.000, 0.000, 1.150, 0.000, 0.200, 1.000, 0.900, 0.000, 0.000, 3.000, 0.000, 0.000
point.3 = 2.000, 5.300, 0.000, -3.900, 1500.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 4.000, 0.000, 0.000
point.4 = 2.000, 0.000, -13.131, -0.335, 1000.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 5.000, 0.000, 0.000
point.5 = 2.000, 0.000, 13.131, -0.335, 1000.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 6.000, 0.000, 0.000
point.6 = 5.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.000, 0.100, 0.100, 0.000, 0.000, 0.000

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Reply #3 - Jun 5^th, 2010 at 4:58pm

JoBee Offline
Colonel
Better to give than receive.

Posts: 582

Try these...
Fozzer wrote on Jun 5^th, 2010 at 4:38pm:

point.0 = 3.000, -14.387, 0.000, -2.700, 1500.000, 0.000, 0.000, 180.000, 0.200, 1.000, 1.000, 0.000, 0.000, 1.000, 0.000, 0.000
point.1 = 1.000, 1.100, -2.400, -5.200, 2000.000,

1

, 1.150, 0.000, 0.200, 1.000, 0.900, 0.000, 0.000, 2.000, 0.000, 0.000
point.2 = 1.000, 1.100, 2.400, -5.200, 2000.000,

2

, 1.150, 0.000, 0.200, 1.000, 0.900, 0.000, 0.000, 3.000, 0.000, 0.000

Fozzer wrote on Jun 5^th, 2010 at 4:38pm:

There's more in this magic .cfg stuff than meets the eye... Wink

...

...!

It's all explained in the "Aircraft Container SDK' which is nothing more than a Word .doc

Download links for all the SDK's (Software Development Kit) are available here- http://support.microsoft.com/kb/555857

cheers,
Joe

Don't argue with idiots, they drag you down to their level and beat you with experience.

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Reply #4 - Jun 5^th, 2010 at 5:05pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Ta, Joe....

...!

Many thanks for all the help and advice... Smiley

...!

Saved the info... Wink

...!

Shoeing the brakes at the mo'.... Grin

...!

Paul...G-BPLF...FS 2004...FS Nav... Cool

...!

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Reply #5 - Jun 5^th, 2010 at 6:44pm

Hagar Offline
Colonel
My Spitfire Girl
Costa Geriatrica

Posts: 33159

I'd just like to point out that the SE.5a in your shot is not fitted with brakes. It's operated from grass airfields & has a tailskid to slow it down like the trusty Tiger Moth.

According to the SDK Class 3 defines Skid. It's properly defined in your example but I'm not sure this is correctly modelled in FS or if it should read Ski. Undecided

Quote:

point.0 =

3

.000, -14.387, 0.000, -2.700, 1500.000, 0.000, 0.000, 180.000, 0.200, 1.000, 1.000, 0.000, 0.000, 1.000, 0.000, 0.000

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Reply #6 - Jun 5^th, 2010 at 7:15pm

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

Hagar wrote on Jun 5^th, 2010 at 6:44pm:

I'd just like to point out that the SE.5a in your shot is not fitted with brakes. It's operated from grass airfields & has a tailskid to slow it down like the trusty Tiger Moth.

According to the SDK Class 3 defines Skid. It's properly defined in your example but I'm not sure this is correctly modelled in FS or if it should read Ski. Undecided

Quote:

point.0 =

3

.000, -14.387, 0.000, -2.700, 1500.000, 0.000, 0.000, 180.000, 0.200, 1.000, 1.000, 0.000, 0.000, 1.000, 0.000, 0.000

Lots of my Vintage Aircraft are not fitted with brakes, which is correct...

I would just like to cheat a little bit, and fit brakes to them to slow them down somewhat after landing!

(Rather like I fit Bendix-King Radios and Autopilots to them)... Wink

...!

Paul... Wink

...

...!

P.S. Joe....by the way; that [Contact point] mod had no effect on braking... Cry

...!
P.P.S...rearranged the numbers, and it now works...but violently!...I need to change the [Braking] effect now! Needs a lot of back pressure to stop her "nosing over"!... Wink

...!

Sorted!....>>> toe_brakes_scale = 0.20// 0.68 //Brake scalar// I'd try it in 0.02 increments.

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Reply #7 - Jun 6^th, 2010 at 2:03am

Hagar Offline
Colonel
My Spitfire Girl
Costa Geriatrica

Posts: 33159

That looks like the Alpha freeware SE.5a. I tried it "out of the box" & the skid works well as a brake. It's also very manoeuvrable on the ground. Turns on a sixpence if it's done properly. Stick right back with short bursts of power. I've taxied a lot of taildraggers in RL & it's pretty realistic IMHO.

More than can be said for its performance in the air. Very touchy. Shocked

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Reply #8 - Jun 6^th, 2010 at 2:52am

Fozzer Offline
Colonel
An elderly FS 2004 addict!
Hereford. England. EGBS.

Posts: 24861

You are right, Doug...

It is the Alphasim model. I quite like it.
I decided to download it after watching a recent documentary on the 'Tele (Channel 4?) about the WW I Pilots and their attempts to beat the Hun in the air!
Red Arrows Pilots used replica WW I aircraft to replicate their flying skills. The SE5a and Albatros Aircraft were well represented!

Landing the SE5a was always a problem...too fast=bouncing, too slow=stalling!

She has a surprising turn of speed for a WW I Aircraft!

Paul...FS 2004..and a spot of Aerial Dog-fighting!... Cool

...!

P.S. The mods, described above, have given me some effective brakes, now! Thanks, Joe... Kiss

...!

Dell Dimension 5000 BTX Tower. Win7 Home Edition, 32 Bit. Intel Pentium 4, dual 2.8 GHz. 2.5GB RAM, nVidia GF 9500GT 1GB. SATA 500GB + 80GB. Philips 17" LCD Monitor. Micronet ADSL Modem only. Saitek Cyborg Evo Force. FS 2004 + FSX. Briggs and Stratton Petrol Lawn Mower...Motor Bikes. Gas Cooker... and lots of musical instruments!.... ...!
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