Classic Space Fast Flyer
The "Fast Flyer" series of ships were some of the speediest spacecraft in the first days of Classic Space. Their large canopies were the result of early radar sets being temperamental and unreliable. Spacemen needed to be able to access the recalcitrant apparatus in mid-flight, in order to bash it with a hammer, spanner or chunk of moon-rock. The easiest solution was to put the radar inside the cockpit, with the pilot.
Excess heat from the radar sets helped to warm the cockpit in the cold void of space. At least one near fatal crash occurred due to a spaceman using the avionics to warm up a Ginsters Cornish pasty*. He had bought it from the spaceport buffet, in case he got peckish on a particularly long space flight.
*Other pasty products are available, with the staff of Llwyngwril Space Systems being fond of the Welsh Oggie.