29-06-2019, 09:51 AM
The RN sun roof is like the RM which sits in the roof opening requiring various drains to collect and drain the water away each side of the windscreen, this is the design's failings because they get blocked with leaves and rust away. The later RP sunroof sat over the roof opening and didn't require the drains and I think the Ruby was similar. Phil Baildon did drawings of the RN and RP sun roofs many years ago and can be found in the source book. Attached are his other RN sun roof drawings.