Submarine Kitbash Spaceship part 1

I came across this image of a kitbashed spaceship on Facebook made from the two halves of a submarine Plastic model kit. The modeller was Tony Murray https://www.facebook.com/groups/2043682082594379/posts/3266027093693199 I thought this was a genius idea and as I had the front end of the hull of a large 1/72 scale U-boat sitting idle in a box I thought I might be able to have a a go at doing…