Blackburn R.B.3A Perth
1933
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Blackburn R.B.3A Perth

A development of the Iris, the Blackburn R.B.3A Perth was built to replace the earlier flying-boat in service with No. 209 Squadron at Plymouth, and differed from the Iris V primarily in having an,enclosed cockpit, and a hull covered with corrosion-resistant material. An improvement in armament was the installation of a 37mm gun in the bow position for anti-shipping work, but there was also an alternative rail-mounted 7.7mm machine-gun, as on the Iris. The Perth's service introduction came in January 1934 when the second aircraft was delivered to Plymouth. At that time the first was still under test at Felix-stowe, but by 31 May 1934 all three from the first contract had been delivered. A fourth Perth had been ordered subsequently and flew in April 1934, but this was retained at the MA&EE Felixstowe for experimental work.

Problems with the tail unit required the flying-boats to be modified at Brough, keeping them out of service for several months. The first Perth was lost in heavy seas during September 1935, and two. of the remaining three were eventually struck off charge in 1936. The last aircraft survived a further two years at Felixstowe.

3-View 
Blackburn R.B.3A PerthA three-view drawing (800 x 728)


Specification 
 CREW6
 ENGINE3 x RR "Buzzard IIMS", 615kW
 WEIGHTS
    Take-off weight14740 kg32496 lb
    Empty weight9500 kg20944 lb
 DIMENSIONS
    Wingspan29.6 m97 ft 1 in
    Length21.3 m70 ft 11 in
    Height8.1 m27 ft 7 in
    Wing area233.3 m22511.22 sq ft
 PERFORMANCE
    Max. speed213 km/h132 mph
    Cruise speed175 km/h109 mph
    Ceiling3500 m11500 ft
    Range w/max.fuel2780 km1727 miles
    Range w/max.payload1600 km994 miles
 ARMAMENT1 x 37mm machine-guns, 1 double-MG, 3 machine-guns, 900kg of bombs

Comments
dave lucas, 01.08.2010

Has anyone suggested building a full size flying replica of this aircraft? It would make a spectacular addition to the airshow scene...

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