At last!! Milairjunkie has it. Let's deconstruct the clues:
Only two aircraft were built of this specific type name though many more were built for just one user's specification and were called something else. The first one was built then dismantled, moved and rebuilt before its first flight.These aircraft were designed and built by a company which was taken over by another - which produced the production run derived from the second of the two after this had been modified.
The General Aircraft Universal 60 Freighter was built by General Aircraft at Feltham Middlesex. Before it flew Blackburn Aircraft had taken the company over so the aircraft was dismantled and shipped by road to Brough, Yorkshire, for its first flight. The second prototype was modified in various ways.
The addition of seats to the production derivatives gave thousands their first trip overseas although few really wanted to make the trip. One of the derivatives narrowly avoided ending up in the pink. Well some expected its future to be orange! However, back to the original two aircraft, the name of which is what we are really looking for - though they shared a name, they had different type numbers
The second prototype received clamshell doors and 36 seats in the tail boom and became the template for the derivate, the Blackburn Beverley. The Beverley could also accommodate 94 troops on the main deck and thousands of UK conscripts were transported around the diminishing Empire aboard Beverleys, for many their first trip abroad. One of the production Beverleys was bought by Court Line to transport spares to support its Tristar operations but the aircraft was never used. There were plans to paint the aircraft in Court Line colours, either pink or orange. The second Universal prototype was known as the General Aircraft GAL65
The second of these aircraft, and all the derivatives, received a better engine from the original engine manufacturer and reverse pitch props which gave it and the derivatives a stunning STOL performance for the size of aircraft.
The Bristol Hercules of the GAL 60 was replaced by the Bristol Centaurus in the GAL 65 and the Beverley. With the reverse props the aircraft had a fully laden take off run of 2370 ft and a landing run of 930 ft.
Passengers could be carried at the same time in the derivative. Developed indirectly from a glider by the original designing company, the derivative had a service life of 12 years.
The aircraft were often used in mixed passenger/cargo roles with extra passengers on the main deck, the design was a development of General Aircraft's WW2 Hamilcar glider. The Beverley had a short service life, some aircraft only being in service for 8 or 9 years.
There is a unique triple co-incidence regarding the derivative involving the number built, the first unit to operate it and the aircraft's name.
There were 47 Beverleys made, the first squadron to receive them was numbered 47, and 47 Squadron was raised in Beverley – the city which gave its name to the aircraft.
Neither of the two aircraft I'm looking for exists and only one of the derivatives is still extant and is in a pastiche of one of the real paint schemes employed. This particular aircraft didn't see normal service but was retained by first the manufacturer and then an official body linked to the military for development trials of equipment for aircraft with very different roles.
Another example of the derivative which had been preserved was let deteriorate in a prominent position and was cut up by an organisation which should have known better, just the cockpit surviving.
The Universals were scrapped. One Beverley survives. It has been painted in a style similar to the desert scheme applied to some service aircraft but lacks accuracy in the design and lacks the black underside. This aircraft was originally retained by Backburn aircraft and the passed to the Royal Aircraft Establishment . It has been used for rocket assisted take off, supply drop equipment and V Bomber braking parachute tests.
The other example was placed close to the RAF Museum at Hendon, though was not owned by them. They took little interest until a survey said the aircraft was rotting and could become dangerous at which point they insisted it was broken up.