Archive for ‘Engineering’

June 21, 2018

L’orange

Deux Chevaux – like some giant upturned orange wheelbarrow this Citröen 2CV was parked up near Morries Place last weekend. Developed in France after the 2nd World War as an economical family transport it was spare in detail but complete in purpose. Over 9 million of these cars and their variants were manufactured over 42 years. It’s up there in motoring history with the Ford Model T, VW’s Beetle, Fiat’s 500, and BMC’s Mini.

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June 19, 2018

One, Two, Three, Four

Four Square- more offerings from the Ringwood motorcycle emporium. Delicious BSA Goldstar in immaculate condition, one lung and splendid mirrored chrome tank emblazoned with the gold star representing Wal Handley’s ton lap at Brooklands in ’37. Green lane ready Triumph Trophy Trail, half liter of long legged fun. Norton & Beeza goodies: one a TT special willing for speed, the other a doughty sloper ready for a lazy countryside jaunt. Finally a hefty Laverda 3C Triple, 1000cc of Italian grunt; just need a quiet afternoon along Lago Maggiore…

June 17, 2018

Orange is not the only fruit

Hurricane – in an attempt to win over a flagging US customer Triumph and BSA employed industrial designer Craig Vetter to create bodywork for the new and fast triple that would appeal to the American market. Though a BSA Rocket Three at heart, by the time the X75 was released it was emblazoned with a Triumph badge. The deep orange with yellow swoosh are inspired with an hourglass shape that provides a sexy line to this muscle of a motorbike. Triple stacked silencers on the timing size are keenly futuristic. This example was built by Ed Zender for a customer. He says it runs well with a powerful and tight power unit. In the sun it’s a sublime example of a special British motorcycle.

June 2, 2018

Dog Rider

Hound – it takes a canine nose to enjoy the fast winds from a moving vehicle. Especially if it’s a cafe racer. Be-goggled pup smiles and wags their tail to promote speed conjuring components.

April 5, 2018

Moto Parameters

Specifications

Make Model

Triumph Trident T150 750

Year

1968 – 70

Engine

Tansverse three cylinder, pushrod OHV, 2 valves per cylinder

Capacity

741 cc / 45.2 cu in

Bore x Stroke

67 x 70.5 mm

Compression Ratio

9.0:1

Cooling

Air cooled

Lubrication

Dry sump

Induction

3 x 26 mm Amal MK1 carburetors

Ignition

Individual points & coils

Starting

Kick

Max Power

58 hp @ 7250 rpm

Transmission

4 Speed, constant mesh

Final Drive

Chain

Gear Ratios

1st 13.00 / 2nd 9.00 / 3rd 6.64 / 4th 5.26:1

Frame

Single downtube, duplex cradle

Front

Telescopic fork, hydraulic

Rear

Swingarm, dual shocks

F Brakes

8 in TLS drum

R Brakes

7 in TLS drum

Front Tyre

3.25-19, Dunlop K70

Rear Tyre

4.10-19, Dunlop K70

Dimensions

Length: 86.0 in

Width:   33.0 in

Height:  43.5 in

Wheelbase

56.3 in

Ground Clearance

6.5 in

Seat Height

32 in

Dry Weight

460 lbs

Fuel

5.0 US gal / 4.2 Imp gal

Top Speed

105 mph

March 27, 2018

Strange Case

Dr Jekyll – the beast within. Specialist motorcycle performance component guru Norman Hyde has a solid history in making Triumph run quicker and faster. Under the tutelage of Doug Hele at the Triumph Racing Development Department he cut his teeth on making Bonneville’s and Tridents go like the clappers. Records were made on the drag strips with his meticulously engineered machines. Norman looks rather dapper in his weskit & jaiket astride a newer Bonneville for which he’s developed many performance parts.

My Bonneville has Norman Hyde rearsets and clubman handlebars… well, I think it goes quicker…

March 20, 2018

Coiled

Suspended Season – On the First Day of Spring let’s look at what the boffins at the Triumph factory conjured up to make the ride smooth and rider content. It’s all about damping: taking the uneven jolting from the rough surface and dispersing the imparted kinetic energy into heat energy, typically an oil filled shock absorber, before it can transfer into the saddle.

February 27, 2018

The man who put the MPH in Triumph

Tuning Maestro – On this day in 2007 saw the passing of one of the great Triumph engine mechanics of the sixties. Jack Shemans cut his engineering teeth on Daimler cars and Armstrong-Whitworth aircraft before joining the Meriden factory of Triumph Motorcycles. In the thick of engine development he took the 500cc Tiger engined bike’s to racetrack victories such as Percy Tait’s Works 500GP seen in the posts image. Incidentally this months edition of Motorcycle Classics has a detailed article about this bike. Jack also helped beef up the horsepower of the Triples to get their Daytona successes. From the people who knew him he was a kind, generous and knowledgeable man.

February 19, 2018

Felix Frame Fame

Fritz the Cat – Egli frames are seen to be the perfect chassis for high horsepower powerplants such as this olympian KZ beast. The large diameter backbone and triangular geometry tubing give a stiff mount to impart the engines capabilities to the road. The cat approves in true feline curiosity.

February 11, 2018

Vloek

Backfire! One of the unfriendly characteristics of a kickstarting motorcycle is the occasional pre-detonation that flails the lever back into your foot or shin. There aren’t enough curse words in the English language when this happens… Fantastic depiction by the talented pen and ink work of Dutch illustrator Charles Burki “The Recoil!”

February 8, 2018

Dinosaur

Skeletal Remains – like some machine archaeology the bare bones of a Trident frame and accessory components hint at a fully assembled and running motorcycle. Fossil remnants of a T-Rex giant lizard displayed through the interior spaces of a museum are only a cursory attempt at the frightening might they must have been. Likewise this assemblage of rolling chassis need fleshed-out to achieve brutal speed along a roadway.

February 2, 2018

Sex Sells

Descriptive Leader – when illustrating the superlative virtues of a new and better item it was all the rage to label obvious physical particulars as top-notch characteristics you couldn’t do without. Of course… draping a lassie along the length of it goes a long way too…

February 1, 2018

The Gordon Clan

Homage to Loewy- further examples of Alastair Laurie’s ballistic bikes. Sleek machines which practically need a pilots license for sub-orbital flight.

January 31, 2018

a dhà

Special Three – polished to a high speed. Isle of Man custom racer with blown engine from 1981 built by scot Alistair Laurie. Hailing from Dalbeattie, Dumfries in The Borders he took great pains to ensure integrity with lightness and style.

January 30, 2018

See Through

X-Ray Spex – cutaway engine with internals visible. Typically the sliced faces are in red and a hidden motor drives the contraption so the workings can be seen in motion. Best way to see engineering at work!