Re­turn to 750 For­mula for cham­pion Rob­son

Motor Sport News - - Racing News -

Dou­ble 750 For­mula cham­pion Dave Rob­son is plan­ning to re­turn to the series this year at the wheel of a new SDAR chas­sis.

Rob­son be­gan rac­ing in the class with his pre­vi­ous chas­sis, that fea­tured an 850cc Re­liant en­gine, in 1983. Hav­ing taken a sab­bat­i­cal since mov­ing house – and even­tu­ally sell­ing his pro­gres­sively up­dated 2009 and 2012 ti­tle-win­ning SDAR/83 to Nigel Terry last sum­mer – the Der­byshire rail­way en­gi­neer is well ad­vanced with his SDAR/17.

“I’ve taken a ‘techy’ ap­proach to de­sign­ing and build­ing it,” said Rob­son. “It’s been an in­ter­est­ing jour­ney and has re­quired me to learn new skills, in­clud­ing us­ing a Com­puter Aided De­sign (CAD) pro­gramme to draw out most com­po­nents. I used a cheap 3D scan­ner to cap­ture the shape of the driver, en­gine, gear­box, dif­fer­en­tial and steer­ing rack to fit them into the CAD model.”

The chas­sis is formed from steel top rails and roll hoop al­lied to laser-cut sheet alu­minium lower sec­tions, riv­eted and bonded to form a semi-mono­coque struc­ture. As with SDAR/83, the car is sus­pended by rigid beam axles.

Now on its wheels, with 1107cc Fiat FIRE en­gine and Quaife gear­box in­stalled, Rob­son and his col­league Frank Brown are now turn­ing their at­ten­tion to the body­work, with the aim of de­but­ing the car mid-sea­son.

Rob­son is build­ing his new SDAR/17

Newspapers in English

Newspapers from UK

© PressReader. All rights reserved.