Hi Dannypenguin,
Try this method.
http://forum.shipsim.com/index.php/topic,10214.msg119469.html#msg119469
I believe it works OK. I have just tried this for you and, whilst I can get up to the platform, I can't get inside the closed cabin.
Very much a case of trial & error since you can end up flying.
Regards,
Angus.