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Airfix 1/144 SR.N4 Hovercraft # 09171V
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£35.99
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£39.99
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Produced at a time when British engineering was the envy of the world, the Saunders Roe/British Hovercraft Corporation SR.N4 was impressive in every respect of the word; a mighty craft heralding a new era in high speed, high comfort, cross-Channel travel for the masses.
Entering service in 1969, these Mountbatten Class Hovercraft were able to cruise at speeds in excess of 60 knots, allowing operators to complete 14 return trips each day during the busy summer schedule.
Powered by four marine variants of the Rolls Royce Proteus turboprop engine, each unit drove a massive 5.8 metre diameter variable Dowty Rotol propeller mounted-on pylons, which moved to provide the hovercraft with directional control, along with powered fins and rudders.
At the time the SR.N4 entered service, this floating leviathan was the largest passenger hovercraft ever built, equipped with the largest propellers ever produced.
Allowing these fully amphibious craft to use terminals away from existing busy seaports, but close enough to still be convenient for passengers, you definitely knew when one of these mighty craft were inbound, because of the incredible noise produced by its Proteus engines.
Everything about this hovercraft was spectacular, which also made it one of the most impressive Airfix model kits ever produced, one making a welcome return to our 2026 Vintage Classics range in 1/144 scale.
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The SR.N4 (Saunders-Roe Nautical 4) was the largest commercial hovercraft ever built and a true icon of British engineering.
Developed in the 1960s by Saunders-Roe (later part of British Hovercraft Corporation), it revolutionised cross-Channel travel between the UK and France.
Entering service in 1968, the SR.N4 operated primarily on the Dover–Calais and Ramsgate routes, dramatically reducing crossing times compared to conventional ferries.
Capable of speeds over 60 knots (around 70 mph / 110 km/h), it could carry cars, coaches, and hundreds of passengers across the English Channel in around 30–35 minutes.
Design & Performance
Powered by four Rolls-Royce Proteus marine gas turbine engines, the SR.N4 rode on a cushion of air contained by a flexible skirt system.
This allowed it to travel over both water and land, gliding directly onto specially prepared ramps at terminals.
Key features included:
- Vehicle deck capable of carrying up to 60 cars (early versions)
- Passenger capacity exceeding 250, later expanded to over 400 in “Super 4” versions
- Aluminium hull construction for reduced weight
- Distinctive twin fin tail design
Over time, several SR.N4 craft were lengthened in the mid-section to increase vehicle and passenger capacity, creating the famous “Super 4” variant.
A Channel Icon
Operated by companies such as Seaspeed and Hoverlloyd, the SR.N4 became a symbol of fast, futuristic travel during the 1970s and 1980s.
Its thunderous turbine roar and dramatic spray plume made it unforgettable for travellers and spotters alike.
However, rising fuel costs, increasing maintenance demands, and competition from the Channel Tunnel eventually led to its retirement in 2000.
Legacy
The SR.N4 remains the largest passenger hovercraft ever placed into commercial service.
It represents a bold chapter in British transport history — a time when air-cushion vehicles promised to reshape maritime travel.
