Thursday, May 7, 2015

VSKYLABS RC F40&Countach

VSKYLABS RC Ferrari F40 and Lamborghini Countach LP500

General information:
This is an advanced R/C modelling of the Ferrari F40 and the Lamborghini Countach LP500. Car size is scaled down to 40%, making this a large RC type vehicle (both in size and weight). This project began as an experiment, and ended as an addictive toy!

Both models are simulated with a Four-Wheel-Drive physics, which allow the models to be controlled at over-steering or 'Drifting'.  Physical performance was stretched to it's limits with X-Plane, to make these vehicles look and feel like real 'Drifters'.

How it's made?
Well, X-Plane doesn't have wheel-drive propulsion systems, so each one of the wheels is actually a Jet-thrust-engine (!), located at the contact point of the wheel and the ground (just like in an ordinary car - the traction points are the small contact areas of the wheels and the ground). Stabilization is made by lift surfaces (!), which are invisible, and their job is to push the car into the ground while moving fast, or while power is applied.

Wheel friction coefficients are set up with high values. This is mainly for matching a smaller-sized wheel friction to real life behavior, and also for easy braking: idle the throttle and the car behaves as if you are using the brakes.

Here are some things you'll have to consider when using these vehicles in X-Plane:

  • I recommend using an RC type Joystick controller for quick and accurate control inputs (It's a scaled-down car so it moves fast, quicker response than in a full-scale car is needed). 
  • Use External views for Ultra-Fun experience :).
  • Wheel-friction is different on different surfaces in X-Plane, much more than you might expect. I recommend you to try different surfaces and choose your favorite.
  • The cars are tuned up for best realistic performance on asphalt or concrete surfaces.
  • Over-steering (or 'Drifting') is an art. It's a balancing act and controlling it is done by small but rapid inputs of steering and power.
  • Remember that this is actually a Jet-powered car, so once your velocity vector is pointed up and you apply power, it will get airborne. When the car jumps of the ground, in any reason, throttle down and let it get back to the ground...

Have fun! 


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