http://www.aircraftresourcecenter.com/Gal9/8301-8400/gal8342-Tupolev-Petrie/00.shtmor, for ease of reading:
1/144 Tupolev TU-4T "Bolshoi"
With the advent of jet aircraft, the leadership of the Soviet Union began to express concerns about keeping up with the decadent Westerners. One area urgently looked into was the Jet Bomber. With this type of aircraft, planes could hit capitalists fast and hard, without fear of interception
One of the first attempts was basically a jet engined version of the Tu-4 "Bull", which itself was a reverse engineered B-29. It seemed simple enough, add some jets to an existingly fast aircraft, and quick like borscht, you'd have a new, faster plane. Well, almost...
It turns out the airfoil design used on the B-29 had a limiting Mach factor, so the addition of jet engines only added 50 knots airspeed. The thirsty nature of early jet engines also meant that a massively large part of the payload had to be given over to fuel, and range suffered drastically as well. It turned out, the Tu-4T was capable of a slightly faster attack, at only 25% of the range of a conventional Tu-4, with only 31% of it's payload. A fully fuelled Tu-4T, taking off from Moscow, could only reach Kiev before requiring refuelling. Needless to say, the plane wasn't put into production, with only three prototypes being built.
However, the ever busy CIA and MI-6 were able to photograph the Tu-4T at a Soviet airfield, and it was assumed to be an operational aircraft. It was designated "Bolshoi" under the NATO naming protocols, and remained in the west's Cold War planning directives as late as 1967.
I got the idea from an old issue of Mechanix Illustrated. Academy lent their 1/144 scale B-29 to the cause, with engines from an old Revell 707 helping out.
Alvis 3.1