41. Other materials such as plastic and fibreglass are also given the corrugated look. 42. Urethane rubber was used, which is more flexible and comfortable than fibreglass . 43. In the 1980s the class underwent a transition from plywood to fibreglass hulls. 44. All production boats featured good quality fibreglass construction and well finished teak interiors. 45. The spaceframe chassis and wishbone suspension carry a lightweight fibreglass body, weighing. 46. The fibreglass body was designed using a wind tunnel. 47. By January 1953, some cars were being fitted with fibreglass rear wings. 48. Its aluminium body was replaced by a fibreglass one. 49. K2 delivered its first lot of 250 pairs of fibreglass skis in 1964. 50. International Fibreglass was sold and closed permanently in 1976.
