Hi Rover Konstruction Tips needed

[HansonKerman]

Hi peeps so I was designing a mission, but my rover keeps flipping. Any way to make this less likely?

Version: 1.7.0

Rover screenie 

https://i.imgur.com/GrSZpVU.png

 

[KerbolExplorer]

Looks like the weels are to close to each other,Try adding more space between them.If you whant to keep them small try giving them less power.

Hope this helps!

Edited April 16, 2019 by KerbolExplorer

[HansonKerman]

@KerbolExplorer Thx, trying it!

[Snark]

Moving to Gameplay Questions.

[Flibble]

I'd suggest a wider track as well if you can, and keep the centre of mass as low as possible.

[Superfluous J]

Yeah your rover is skinny and tall, I'd double the base size at least, and bring that dish down as far as you can.

[Aeroboi]

• Select CoM marker in the editor to display yellow orb (CoM marker)
• Place wheels as far outside of one another. The idea is that the contact point of the outer edge on the wheels versus the CoM location forms a leverage point. If you move the wheels further outward you decrease the angle between the wheel and the Center of mass and it is harder to tumble.
• Alternatively to the above point you can place a Jet engine upside down. Normally a jet engine has a interior combustion chamber which in length is longer then the actual length of the jet engine part. To compensate the Center of mass of a jet engine is away from the jet engine to simulate it being longer. The trick is to place one upside down on your rover to potentially have the center of mass below the ground. It's perfect for creating upright bikes and trikes that require to roll straight.
• Put friction as low as possible. On your vessel you use very light equipment, my bet the default friction settings are to high on that vessel on Kerbin, let alone a planet with less gravity like the Mun. High friction is what causes you to either drive in rigid turns or you'd be drifting at lower friction settings. High friction settings will seem like you are on train rails when turning resulting in immediate turn inputs but it also creates torque on the X axis when turning that could allow the vessel to tumble. The solution to this is using SAS (or mechjeb autopilot) and have adequate reaction wheels onboard to straighten the vessel.
  Regardless of that you should be able to do without any of this with the proper friction settings and wheel base width/length. If for instance you want to fit a rover in a Mk3 cargo bay restricting the wheelbase width in order to drive one out on the ramp you may need lower friction settings not to tumble when turning while having the adequate reaction control onboard.
• If you use the rover on a atmospheric body and it reaches adequate speeds of 30m/s plus you may need aerodynamic vertical stabalisers to have the Center of lift behind the CoM. Otherwise the rover might have trouble keeping straight when driving.
• Always put friction higher on the rear wheels and lower on the front wheels. This makes sure the rover keeps straight under rolling resistance.
• Make sure the entire wheel base is a little bit in front of the CoM. This means your 2 front wheels are a little further from the CoM while the rear wheels are a little closer otherwise the back end would want to sway forward.