I gleaned the following information from "Avro Vulcan" by Andrew Brookes,
Ian Allan Ltd.. Descriptions occasionally shortened where appropriate.
Engine testbeds we
XA894: Bristol Siddeley engine testbed. Modified to carry TSR.2 engine in
ventral pod. Burnt out when engine exploded during ground runs on 3 December
1962.
XA896: Transferred from 230 OCU to Ministry of aviation June 1964 for trials
with underslung vectored-thrust engine intended for Hawker P.1154. When
fighter was scrapped, XA896 quickly followed suit.
XA903: Concorde Olympus test bed; Tornado RB.199 test bed. Landed as last
airworthy B.1 on 22 February 1979. Farnborough fire dump.
Since the air intakes in the picture are simple pitot type, my money is on
XA894.
Regards,
Herman
"Mike Henley" schreef in bericht
...
"Tom Inglima" wrote in message
...
Regarding the Vulcan B-1 photo. I would prsume that this airplane was
being used as a test bed for testing the engines hung under the fuslage.
Does anyone know what type of engines they were. This is the first
picture of a Vulcan I have seen in this configuation.
Tom Inglima
wrote in message
news
I found this in Wikipedia
Avro Vulcan B1 with underslung Olympus 593 Concorde engine
In June 1966 a complete Olympus 593 engine and variable geometry exhaust
assembly was first run at Melun-Villaroche, Īle-de-France, France. At
Bristol, flight tests began using a RAF Vulcan bomber with the engine
attached to its underside. Due to the Vulcan's aerodynamic limitations the
tests were limited to a speed of Mach 0.98 (1,200 km/h). During these
tests the 593 achieved 35,190 lbf (157 kN) thrust, which exceeded the
requirements of the engine.[2]
http://en.wikipedia.org/wiki/Rolls-Royce_Olympus