In the first shot of Pridela, the company Catamaran Cruisers (ive actually written a book about there 30 year history) they were the longest running passenger boat company on the river except for Salters. Its such a shame they packed up. They had two sides, Sightseeing and Dinner/Lunch Cruise vessels.
My dad worked for them as both captain and then he run the company as operations manager. He brought there new glass boat Hydrospace Alpha over from Paris in 1994 and spent a few months down the drydock while she was converted
from this:
http://riverthames.galacg...01/normal_scan0005-1.jpg
To this:
http://riverthames.galacg...mal_green%20040794_1.jpg < new in 1995
http://riverthames.galacg...01/normal_untitled~5.JPG (thats me on the left tieing the boat up)
Her back end was enclosed in paris, this was all cut off, she was redesigned and new engines fitted. She is in my eyes the best boat i have ever worked onboard, shes basic but there is no boat built better than this design for sightseeing. She might not be the best looking boat but she offers passengers 360 vision from the glass, she has a sliding glass roof in the summer which you can see fully open in this photo below. She also had a drink trolly service,onboard photographers, flood lights on the side to light up the bridges of a summers evening cruise, its really a great design. She was built in 1982 and even the passenger boats that are being built now have nothing on this design in my eyes.
My dad had her from day 1 brand spanking newly built , 3 years later the Hydrospace Gamma arrived her sister and then shortly after Hydrospace Beta the third , however the Beta returned to Paris in 2004.
In 1995 Catamaran Cruisers were really at the peak of there success, these glass catamaran vessels were the most modern passenger boats on the river, they were carrying something like 2 million passengers a year and business was booming. Sadly by 2004 with new management things started to slip with Catamaran Cruisers and by 2007 the company decided to pack up sightseeing and concentrate on dinner and lunch cruises only.
The Alpha & Gamma have since been sold to City Cruises and can be seen here with the roof fully open on a sunny day:
http://riverthames.galacg...rpics/10001/CIMG5768.JPG
Here is a photograph taken from the wheelhouse as i was about to turn the boat around in summer of 2006:
http://riverthames.galacg...0001/normal_CIMG4011.JPG
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When a boat is redesigned or things changed, everything must be passed by the MCA for safety etc. The boats have to be stability tested and very strict tests carried out , if things are not right then the MCA will make you add ballast or add safety features or maybe even take things apart and rebuilt bits.
The boat company would come up with ideas and take it to an expert boat designer who will draw scale plans and so on. They will then be taken to a builders yard and they will say if they can built the boat and so on. The real ins and outs im afraid i dont know when it comes to building a vessel. But redesigning the Mayflower Garden would have come under strict rules by the MCA because its class as a new vessel and would have to be totally tested for stability issues etc.
Something that is sadly being forced upon boat owners now days, boats such as salters fleet and the old lovely tunnel boats i so love and so do you ,boats such as River Queen are being slowly forced out. The MCA have rules in place on these old boats that they just cant meet without being rebuilt , thats why many are scrapped or sold off.
Hope this helps !



