One project Dad worked on was on bringing the Camco V-Liner to the UK. In the process of development it appeared on BBC1 Tomorrows World - presented by Raymond Baxter.
The following is an extract from Flight International Sept 1968.
The Cameo V-Liner
ONE OF THE MOST UNUSUAL aircraft to appear in recent
years, the Cameo V^Liner "aerial advertising and information
dissemination aeroplane" is taking shape at
Slingsby Aircraft Company, Kirkbymoorside. This firm, which
has undergone a considerable transformation since controlling
interest was taken over three years ago by a group of Yorkshire
businessmen, has been selected by the American organisation
Cameo (the Central Aircraft Manufacturing Company of
Washington, DC) to build a revolutionary aeroplane designed
specially for the purpose of aerial advertising, traffic control,
geomagnetic survey and a number of other possible applications.
(Sensor, April 18.)
The V-Liner is a development of the airship advertising
(principle, which is fast becoming uneconomic because of high
capital and running costs and excessive manpower demands.
Market surveys are said to reveal a big potential demand
for an aircraft of this type, especially in America and Canada,
although aerial advertising is illegal in Britain. The V-Liner
(so called because of the shape of the structure) is being pushed
along under a four-year, $1.5 million development and design
programme in America, Canada and Britain. First flight is
scheduled for late 1969.
The aircraft has tandem wings, spanning 69ft and joined
by a V-sectioned alloy-tube structure 378ft long. Power is
supplied by two Rolls-Royce Continental 375 h.p. piston
engines mounted over the front wings, while an auxiliary
100 h.p. engine over the rear wing provides power for
the electrical display lighting.