Looooeeee!
Feb 18, 2006, 08:01 PM
Here's something different that I've been playing with.
Billy Piper, (Yum!) and Dave Tennant from the newest Dr Who series, had an episode with them riding on a Vespa scooter. I've modeled this in Metasequoia for use in FMS. Now this is a surface model, not an aircraft. :eek:
I got the original idea for this from a motorcycle created by Pierre Gentil who has done a series of surface vehicles and set up PAR files for them to run in FMS vers. 2.85 The motorcycle is one that Pierre owns, a Kawasaki 650 classic from tha late 60's. It's very cool, a bit like a Triumph 650 Tiger Trophy. The really neat thing is that Pierre has modeled the dynamics of how a motorcycle handles using the various par file adjustments to create a "cheat" of sorts. It's partly aerodynamics and partly wheel dynamics There's no gyroscopic wheel forces, yet. I've been playing around with his PAR file to see if I can introduce some gyroscopic forces but it seems you also need the subtle weight shift and some front wheel castor and trail dynamics for this to work properly Which can't be done with FMS, yet...
But the cheat works. You use the aileron stick for simulating body leaning/ weight shift, the rudder stick for front wheel steering, and the throttle stick to control speed . It's a little counter intuitive as the rudder stick used without any body lean induces an opposite lean that lays the bike over to the wrong side. So you initiate a turn by slightly blipping opposite rudder and adding aileron for lean, then add rudder to stabilise the turn. Feed in more rudder to pull out of the turn sharply. When going in a straight line just use the aileron stick to keep the bike upright. you can use slight amounts of opposite rudder to correct for a slight wobble, although it tends to make for a lot of zig-zagging.
I'll have the PAR file adjusted to simulate the scooter soon, Gotta make bitmaps for the scooter and figures. I'll keep this updated. The motorcycle of Pierre's is really way cool. Do a Google search for Pierre Gentil's website.
Cheers
Looee
Billy Piper, (Yum!) and Dave Tennant from the newest Dr Who series, had an episode with them riding on a Vespa scooter. I've modeled this in Metasequoia for use in FMS. Now this is a surface model, not an aircraft. :eek:
I got the original idea for this from a motorcycle created by Pierre Gentil who has done a series of surface vehicles and set up PAR files for them to run in FMS vers. 2.85 The motorcycle is one that Pierre owns, a Kawasaki 650 classic from tha late 60's. It's very cool, a bit like a Triumph 650 Tiger Trophy. The really neat thing is that Pierre has modeled the dynamics of how a motorcycle handles using the various par file adjustments to create a "cheat" of sorts. It's partly aerodynamics and partly wheel dynamics There's no gyroscopic wheel forces, yet. I've been playing around with his PAR file to see if I can introduce some gyroscopic forces but it seems you also need the subtle weight shift and some front wheel castor and trail dynamics for this to work properly Which can't be done with FMS, yet...
But the cheat works. You use the aileron stick for simulating body leaning/ weight shift, the rudder stick for front wheel steering, and the throttle stick to control speed . It's a little counter intuitive as the rudder stick used without any body lean induces an opposite lean that lays the bike over to the wrong side. So you initiate a turn by slightly blipping opposite rudder and adding aileron for lean, then add rudder to stabilise the turn. Feed in more rudder to pull out of the turn sharply. When going in a straight line just use the aileron stick to keep the bike upright. you can use slight amounts of opposite rudder to correct for a slight wobble, although it tends to make for a lot of zig-zagging.
I'll have the PAR file adjusted to simulate the scooter soon, Gotta make bitmaps for the scooter and figures. I'll keep this updated. The motorcycle of Pierre's is really way cool. Do a Google search for Pierre Gentil's website.
Cheers
Looee