background preloader

Tachyon Project

Facebook Twitter

Futuristic Racing Vehicle on Behance. Autonomo 2030 Concept - The Details on Industrial Design Served.

Inspiration

Tony Foale Designs, numerous articles of motorcycle chassis design. Rake and Trail. © Tony Foale.

Rake and Trail

March 2000. (The experiments were conducted around 1982/83.) Rake The author’s ideas mentioned in other articles in relation to the angle of the steering axis (rake) were subsequently put to the test by modifying a readily available standard production machine – a BMW R75/5. There were two advantages in the choice of this machine. Firstly, the offset of the wheel spindle from the steering axis is divided almost equally between the offset in the yokes and that of the wheel spindle from the centre line of the fork sliders (figure A.1); the importance of this will become obvious later. Secondly, the BMW was large and fast enough to make the results meaningful, which might have been less so with a slow, lightweight machine such as a moped. The first alternative set-up tried was with a rake of approximately 15 degrees and almost nil offset.

In the foregoing chapter, we suggested that balance might be enhanced, particularly at low speeds, by steepening the head angle. Trail Rake. Alternatives for suspension of front wheel. This article was written 16 years ago but little seems to have changed since then, except that BMW and YAMAHA have produced road models using systems mentioned herein, and the Britten has achieved racing success with a plastic "Hossack style" front end. .© 1986 -- 2002 Tony Foale Over the past few years we have heard much about a new generation of front suspension systems, usually with the promise that soon all motorcycles will be built this way or that.

Alternatives for suspension of front wheel

In particular, the Cortanze designed, Elf sponsored machines have been the favourite examples of most writers, conveniently forgetting the earlier (c. 1968) systems from the British engineer, Jack Difazio, whom history may well remember as the instigator of the present interest in alternative steering systems. However, as with most engineering ideas in general and motorcycle ideas in particular, there is little that is really new.

Motorcycle. Motorcycle traffic in Indonesia Most of the world's motorcycles, 58%, are in the developing countries of Southern and Eastern Asia, and the Asia Pacific, excluding Japan which is one of the world's major car users. As of 2002[update], India, with an estimated 37 million motorcycles/mopeds, was home to the largest number of motorised two wheelers in the world. China came a close second with 34 million motorcycles/mopeds in 2002.[8][9] As the middle class in India, China, and other developing countries grows, they are repeating the transition from motorcycles to cars that took place in the US in the years after World War I, and in Europe following World War II, and the role of motorcycling is changing from a transport necessity to a leisure activity, and the motorcycle is changing from a family's primary motor vehicle to a second or third vehicle.

History[edit] Experimentation and invention[edit] Butler's Patent Velocycle Replica of the Daimler-Maybach Reitwagen. First World War[edit] Use[edit] Hub-center steering. The Vyrus 985 C3 features hub-center steering.

Hub-center steering

Hub-center steering in Bimota Tesi 1910 "New Pattern' James with HCS Hub-center steering (HCS) is one of several different types of front end suspension/steering mechanisms used in motorcycles. Hub-center steering is characterized by a swingarm that extends from the bottom of the engine/frame to the centre of the front wheel instead of two forks. The advantages of using a hub-center steering system instead of a more conventional motorcycle fork are that hub-center steering separates the steering, braking, and suspension functions. With a fork the braking forces are put through the suspension, a situation that leads to the suspension being compressed, using up a large amount of suspension travel which makes dealing with bumps and other road irregularities extremely difficult. Hub-center steering systems use an arm, or arms, on bearings to allow upward wheel deflection, meaning that there is no stiction, even under braking.

Notes[edit] ISR Hub Centre Steering Demo. Hub center steering. Single sided hub center steering. World Superbike Champ's All-British Bid For Motorcycle World Land Speed Record. 4 December 2012 (Left to right) Steve Hill, University of Derby Programme Leader for Motorsport Engineering; James Toseland and record attempt project head, Alex Macfadzean, with the motorcycle streamliner at the University workshops.

World Superbike Champ's All-British Bid For Motorcycle World Land Speed Record

James Toseland tries out the motorcycle streamliner cockpit for size. Double World Superbike Champion, James Toseland, has launched a UK attempt to break the official world motorcycle land speed record - aiming to achieve a speed of at least 400mph. On a tour of the University of Derby's Motorsport engineering workshops yesterday (December 3), James saw and heard about the motorcycle streamliner project aiming to break the current official Fédération Internationale de Motocyclisme (FIM) record of 376.363, held by American Rocky Robinson.

The all-British team's record attempt - scheduled to take place at the globally famous Bonneville Salt Flats, in the USA, in September 2014 - is being led by former GP and TT sidecar racer, Alex Macfadzean.