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Fire Ant - Tilting go-cart Instructions are available on rebrickable. Entry topic can be found here. A big thank you to everybody involved in this topic ! One-minute pitch With its wacky turning feature and inclined V4 engine, this vehicle is extremely fast and highly manoeuverable. A perfect fit for a race in an urban area. Don't forget this contest is in fact a race held in LEGO City. This race-cart finds its way through the mess created by its large and heavy opponents, without giving in on speed. And like with real ants, a Fire Ant never comes alone. Their determination and willingness to serve fellow ants that stand a better chance to win, will drive other contestants even more nuts than they already are . And to make the ant analogy complete: this model consists of three segments: The head - With its steering controlled head lights pointing into each and every turn, the front section makes sure the driver won't miss a thing and allows him to anticipate unexpected situations. The thorax - The driver section, which tilts in turns, compensates for the centrifugal force the driver is exposed to. An experienced driver can make the car turn by moving his weight into the turn. The abdomen - Equipped with a V4 engine, inclined to ensure optimal lubrication under acceleration g-forces, the rear section gives the car enough power to stay ahead of all of its opponnents. Admit it, you want to ride this animal! Base features Rear wheel drive Working steering wheel Working fake V4 Adjustable rear-spoiler Wacky feature Turning mechanism which offers 4-wheel steering and makes the driver section tilt in turns. It works like this: The driver steers the front section using the steering wheel. Steering the front section makes the driver section tilt, which in turn makes the rear section counter-steer. More qualities High manoeuverability. The turning feature combines excellent road-holding with a very small turning circle. Straight line stability. The front and rear segments are stablized with silicon bands to keep the car straight. Everything in-system. All inclined constructs rely on perfect fits derived from the Pythagorean triple (3, 4, 5). Kid-proof. Each of the three segments has been build with a high level of form-locking. Nothing will fall off.
I wasn't happy with the way my MINI airplane was turning out, so I decided to start over. I wanted to build something which was a bit more unusual. While searching for something to build, I came across the Bell XV-15, an experimental tilt rotor aircraft, which combines the advantages of a winged aircraft with those of a helicopter. More info about the real thing can be found here: http://en.wikipedia.org/wiki/XV-15 This is the progress so far: - Tilting rotors, controlled by turning knob (not yet visible on the photo's below) - Automatic retracting landing gear, linked to the tilting mechanism - Free spining rotors - Opening rear hatch, manually operated - Part count: 181, but need some part for the control mechanism once I found a suitable spot. - Bonus: very swoosable I'm not satisfied with the cockpit section yet and as said, the controls are not completed at this point. What do you think?