Friday, 27 April 2012

Uffa Fox, his greatest design

I am not at all sure this if fact but as the tomb stone on his grave shows a parachute and a small boat floating down through the air to the sea, its clear the family thought this way.

Uffa Fox’s great and lasting memorial – the Airborne Lifeboat

Uffa Fox’s Airborne Lifeboat rigged for sailing

from Wikipedia Commons via Ian Dunster

Keith Muscott recently wrote this entertaining short history of Uffa Fox’s Airborne Lifeboat for members of the excellent Yahoogroup Openboat, and has been kind enough to give me permission to publish it here. Many thanks Keith!

‘Uffa Fox became obsessed with the notion of a ‘droppable’ lifeboat following the capture of his stepson Bobbie Sach after a ditching. His first idea was a folding boat that could be dropped straight from a low-flying aircraft. He soon realized the impracticality of this, and moved on to consider parachuting it into the oggin. It was to be made of small panels of plywood, which would be opened up by the parachutes as the whole parcel descended. Legend has it that he dropped the first model from a top floor window and converted the drinkers in the Duke of York to teetotalism when they saw it float down. Folding plywood panels were soon discarded in the light of experience.

‘That idea was dropped in favour of carrying the complete craft in the belly of a plane, which was to be an American Hudson (already in use for air-sea rescue). Subsequently they discovered that the bomb door jacks took up too much room for the boat to be carried in the bomb bay, so it was back to the drawing board to design a boat which was streamlined enough to hang outside like a torpedo without completely ruining the air flow. Uffa secured the go-ahead from Lord Brabazon, who subsequently got a rocket from those above for allowing himself to cave in so quickly under the influence of Fox’s silver tongue.
‘Uffa designed the final version one-eighth full-size, 1.5 ins to the foot, and ran off dozens of copies so that many draughtsmen could work on it simultaneously. The lines were lofted then the builders set to work: three weeks in all from pencil lines to waterlines. The hull was built with traditional diagonal planking – two layers of opposing diagonals, one straight planks fore and aft separating them, if I remember correctly. There would probably have been oiled silk or some such material between layers.

‘The test pilot in the Hudson would only fly the first test with the boat attached if Uffa went along too – which he did, including during the final stall tests. The streamlined boat hardly affected the airspeed at all and the plane kept up easily with another Hudson carrying RAF photographers. A secondhand Britannia Middy engine was reconned by the manufacturers for the tests and proved to be exactly right, delivering six knots and good endurance – but it was no longer in production. This led to a call going out to pleasure boat operators up and down the land, including many municipal boating lakes, to strip out engines and return them to the manufacturers (the British Motor Boat Manufacturing Company). June Dixon, Uffa’s neice, describes this bizarre situation beautifully:

“These valiant little engines, cast aside by the exigencies of war and no longer responding to the peacetime call of ‘Come in number twelve, your time is up’, were destined to find themselves chugging gaily along, homeward bound, offering new hope to men whose time but for them might well also have been up.’”

‘The air-sea trial took place during an air raid, with Uffa, and others, bobbing up and down in the Solent in a rubber dinghy. The pilot had been instructed to drop the boat from 600 feet at 110 mph, aimed right at the dinghy, whose occupants were duly soaked by the splash. It descended as the designer intended, nose down under several chutes at a thirty degree angle. The chutes were blown away by a charge when the boat hit and floating lines were fired outwards by two rockets.

‘The boat – a world’s first – was equally as successful in practice and Uffa was eventually presented with a certificate saying as much by members of the Goldfish Club when he became the subject of the television programme This is Your Life many years later.
‘It has been suggested that if the old rogue ever did get into heaven before the Devil knew he was dead, then this design above all others would have been the one that tipped the balance in his favour.

‘Keith Muscott
The Airborne Lifeboats were used in as many as 600 rescues, but after WWII was over, many were converted for use by yachtsmen and dinghy sailors, and I’ve heard reports of a racing class being created around them. They would certainly have made good, big cruising boats for sailing schools and so on.

My thanks to those who wrote about this amazing design and thanks also to Wikipedia.