Crowther 220 Catamaran

[28knots]

Is there anyone out there that has knowledge of this illusive Crowther design? Crowther 220. It s 46 foot cat. I understand that there were only ever 3 produced which is probably why there is little info online.
I have found one online that I'm thinking of purchasing. If you have any information on that particular Lock Crowther 220 Design, any old drawings, photos, articles, insight into their performance - any info really etc. Id be very appreciative. I have found so little info that IM starting to question if its even a real model...

[Tupaia]

A picture might jog someone's memory.

[tamicatana]

https://www.boatdesign.net/threads/l...ography.30229/

http://www.bloomfieldinnovation.com/about.html

[Sand crab]

Here's a vid:

https://www.youtube.com/watch?v=8cJul2lZkvY

Edit, I guess you got to go to YT for this one.