BISON MOBILE PILLBOX

By

DAVE J STUBLEY

LINCOLNSHIRE AIRCRAFT RECOVERY GROUP

This BISON MOBILE PILLBOX, rescued by the Lincolnshire Aircraft Recovery Group, can be seen on display at the Lincolnshire Aviation Heritage Centre, East Kirkby, near Spilsby, Lincolnshire.

In 1940, the British Army was forced to leave much of its armoured strength behind in the aftermath of the German advances into France. Due to the considerable risk of invasion from the enemy and the need to make up previous losses in fighting vehicles, a series of improvised structures were built using commandeered civilian lorry chassis.

Among numerous plans submitted was that of C.B. MATTHEWS CBE, joint Managing Director of BISON CONCRETE LIMITED. His designs included a mobile blockhouse and pillbox.

The example here is of the pillbox design.

KEY FACTS

The construction involved taking the cab from the lorry chassis and replacing it with a concrete one.

In addition, a pillbox of 6 inch re-inforced concrete, 12 feet long, 8 feet wide and 5 feet high was placed on the lorries flatbed.

Access to the pillbox was via a trapdoor in the wooden floor.

Use of this primitive vehicle was mainly by the Home Guard for airfield defence. However, some were possibly in service with the regular army.

The crew of the Bison consisted of two men in the cab and upto three riflemen squatting in the cramped pillbox.

It is significant to note, that, due to the varied chassis required, no two Bison`s would have been the same.

RECOVERY OF THE `BISON` MOBILE PILLBOX BY

THE LINCOLNSHIRE AIRCRAFT RECOVERY GROUP

The remains of the Bison were found at Sleaford where it had been a familiar land mark to many and a playground item to many children over the last 50 years. However, few could have known its historical value. Indeed, only around 200 were built and remember that no two were never the same.

It was not until 1988 that the Lincolnshire Aircraft Recovery Group were informed of it`s existence by a local Sleaford resident, Mr J. Shortland. On seeing the structure it was obvious that this was no ordinary pillbox. A further two years of research provided an answer to exactly what it was.

Contact with the Beverley Museum of Army Transport gave the vital information. They have the only other Bison pillbox known to have survived so far. That Bison has now been moved to the Tank Museum at Bovingdon, Dorset.

Further contact with Bison Floors Limited of Tamworth, Staffordshire, proved that they were the original Bison Concrete Limited who manufactured the pillbox during WWII. They kindly provided much needed photographic and technical information.

With the Bison having such historical value it was decided to remove the relic to a safe place of keeping. With the landowners permsiion granted the operation was planned.

As the Bison was in a copse, it had accumulated a lot of rubbish and so once it had been removed the site would be cleared and restored to nature.

THE BIG LIFT

On Sunday March 22nd 1991, a team from the Lincolnshire Aircraft Recovery Group (LARG) based here at the Lincolnshire Aviation Heritage Centre (LAHC), together with heavy lifting equipment kindly supplied by A.P. CRANE HIRE of Boston, successfully lifted the remains.

The final journey was then made by using E.T. MORRIS`s, New York based articulated lorries.

Amazingly, on lifting the concrete sections, it was discovered that the roof still retains its camouflage paint and one of the can sections has its original wooden shuttering.

FURTHER RESEARCH

Following the recovery to East Kirkby and subsequent publicity by the media, information came forward from various people concerning its history.

The most important contact was from Mr Hide of Nottingham. He informed us that the Bison was used by the Home Guard for airfield defence at RAF DIGBY, some miles north of Sleaford.

RAF DIGBY was the most northern Battle of Britain Station and therfore required additional protection. However, later in WWII as the Allied advance moved further into Europe, Digby was downgraded and hence the additinal airfield protection was not required.

The Army Transport Corps working from Hanley`s yard, Sleaford were tasked with it`s removal to Ferrybridge, Yorkshire for storage. Unfortunately, the condition of the vehicle was so poor that it could not be moved any great distance. The Home Guard eventually used it for road block defence on the A15 just outside of Sleaford. Towards the end of the war it was again unwanted and it was finally abandoned in a copse to the side of the A15 near Quarington Lane end. The ensuing years saw it stripped and vandalised until eventually the chassis was converted for use as a farm trailer.

It is interesting to note that the original lorry chassis was a 1915 Leyland Box Van, complete with soild tyres and chain driven. A remarkable coincidence was that before being commandeered by the Army and sent for conversion to a mobile pillbox, the lorry was owned by CAMMOCKS of Sleaford and used as a furniture van. So, the lorry has always been based in Lincolnshire!

The group has hoped to fined a suitable period chassis for the pillbox and to reconstruct the Bison to as near as original as possible.

CAN ANYONE HELP?

Visitors are welcome to come and see the BISON at the

LINCOLNSHIRE AVIATION HERITAGE CENTRE

East Kirkby, near Spilsby, Lincolnshire, PE23 4DE

01790-763207

website: www.lincsaviation.co.uk

Opening times:

Easter to October: Monday to Saturday 9.30am to 5pm (last admission 4pm)

November to Easter: Monday to Saturday 10am to 4.30pm (last admission 3pm)

Copyright Graham G Matthews@PSG2002