Vickers No 3 and No 4
Monoplane

Continuing the Vickers-development of the French REP Monoplane design.
Vickers No 3 monoplane right front The Vickers No 3 monoplane at Brooklands - No 4 closely resembled No 3.
 
The Vickers No.3 and No.4 Monoplanes, which appeared in late 1911 / early 1912, introduced further changes to the REP design that was the basis of the Vickers No.1 and No.2 Monoplanes.
 
The revised undercarriage and rudder of the first two monoplanes were retained, but the fuselage from the pilot’s cockpit forward was changed to be of rectangular cross-section. The wings were completely redesigned, changing to a rectangular planform of reduced span, with rounded wing tips, rather than tapered with square-cut tips.
 
The landing wires were supported by a much more robust ‘cabane’ structure which was designed to protect the pilot, should the aircraft turn over on landing. The fuselage structure was also changed with the brazed joints used by Vickers Monoplanes No.1 and No.2, being replaced by welded and bolted fixtures.
 
No photographs have been found of No.4, which is believed to have been externally very similar to No.3.
 
One source suggests that it was not used at the Vickers’ School at Brooklands and might have been delivered directly to Captain Sykes for him to take part in the March 1912 Mortimer-Singer competition, where it was damaged on landing on 31st March 1912.
 
A second source suggests that Vickers Monoplane No.4 was designed with a much higher safety factor and was found too heavy to fly, being relegated to a ground trainer role to give pupils experience of engine control and taxying only.
 

Variants & Numbers


Two only, Vickers No.3 and No.4 Monoplanes.
 

Specification


Powerplant
One 60 hp REP or Vickers-REP semi-radial engine
Span
38 ft 6 in
Maximum Weight
1,300 lb
Capacity
Pilot and passenger
 

Survivors


No examples of the Vickers No.3 and No.4 Monoplane survive.

Other information