This is Eagle Transporter. (no.359) It was identical space craft from the 'Space 1999' series, each version carrying a different load module and both to the same 1/110th scale which meant that models could be interchanged. The transporter version was only ever available in metallic green with a white plastic capsule module. The main frame was as the Freighter version, in white plastic. All variants of either type had four large red plastic main engine nozzels and most had red four-way auxiliary direction nozzels on each outer pod; rarer versions had these moulded in yellow. A very accurate pair of models, especially if finished in white, the colour that all the Eagles in the series were finished in. See here.