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Bug #9196

Tank steering allows excessive speed

Added by wagner over 8 years ago. Updated almost 8 years ago.

Status:
Closed
Severity:
Low
Assignee:
-
Category:
Physics
Target version:
1.2.0
Start date:
04/17/2016
% Done:

100%

Version:
1.1.3
Platform:
Windows
Expansion:
Language:
English (US)
Mod Related:
No
Votes:
Arrow u r green
Arrow d r red

Description

In pre-release 1.1.

The XL3 rover wheels are allowed to consume far more power while turning than while driving forwards or reverse. Holding forwards while turning will cause the motor driving forward to run at this elevated level, while idling the opposite motor. Holding forwards while rapidly cycling between left and right allows the vehicle to travel straight, while taking advantage of this increased power output. Craft used in testing was able to accelerate to 110m/s on wheel power alone before running out of runway.

screenshot2.png (2.01 MB) screenshot2.png 96m/s / 345kph / 214mph MiniMatt, 08/27/2016 05:57 AM
Rapid Tank Steer.craft (61.1 KB) Rapid Tank Steer.craft craft file, instructions in description MiniMatt, 08/27/2016 06:00 AM
20728

Related issues

Related to Kerbal Space Program - Bug #9588: RoveMax Model XL3 steering accelerationDuplicate04/29/2016

History

#1 Updated by sal_vager over 8 years ago

  • Related to Bug #9588: RoveMax Model XL3 steering acceleration added

#3 Updated by TriggerAu over 8 years ago

  • Status changed from New to Needs Clarification

#4 Updated by MiniMatt about 8 years ago

20728

Can confirm this is still present in stock v1.1.3 x64. Attached screenshot shows a 40 ton craft driving just shy of 100m/s achieved by cycling left/right steering input. Far in excess of the wheel's listed max motor speed of ~15m/s.

Attached craft file is the vessel used - instructions:
  • Load craft
  • SAS to taste (torque wheels are set to SAS only to prevent pitch forward)
  • Start fuel cells if planning extended run, otherwise battery is sufficient
  • Hold forward (eg "W") key whilst cycling the left/right (eg "A/D") keys.

#5 Updated by Squelch about 8 years ago

  • Status changed from Updated to Ready to Test
  • Target version set to 1.2.0
  • % Done changed from 10 to 80

This situation has been improved for KSP 1.2

#6 Updated by Squelch about 8 years ago

  • Version changed from Not Applicable to 1.1.3

#7 Updated by JPLRepo almost 8 years ago

  • Status changed from Ready to Test to Closed
  • % Done changed from 80 to 100

Closing. No response.

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