Hydro

I don't know if this has been discused here before so I'll ask in here. Why is it that in all the valks with a twin cockpit, the radar guy gets stuffed into a ridiculusly small space behind the pilot? does he have no legs or is his control panel built into the back of the pilots eject seat? It looks very odd to me, just like one of those sports cars with back seats only usefull for shopping.