Thu Dec 18, 2008 9:35 pm
Fri Dec 19, 2008 2:59 am
Fri Dec 19, 2008 3:03 am
Fri Dec 19, 2008 5:27 am
The Inspector wrote:They were essentially the same fuselage, just somewhat different wings and no center vertical stab-and far, far better engines
Fri Dec 19, 2008 10:45 am
Fri Dec 19, 2008 1:37 pm
Fri Dec 19, 2008 2:02 pm
Fri Dec 19, 2008 4:17 pm
Sat Dec 20, 2008 12:34 am
Comparison with a near contemporary
American bomber, the Martin B-26 Marauder,
is also instructive.
While the Manchester specification was
issued in 1936 and that to which the Maraud-
er was designed as late as January 1939, the
two appeared in service at a similar time.
Manchester operations and delivery of the
first four Marauders to the USAAC both took
place in February 1941. The two aircraft had
comparable engine power in the two Rolls-
Royce Vulture engines at l,780hp each and
the Pratt & Whitney R-2400 Double Wasp at
1,850hp apiece.
As initially designed operating weights
were also similar at 26,043 Ib for the Man-
chester and 27,200 Ib for the Marauder. Here
the similarities end and these statistics hold
the key to the respective failure and success
of the two types in service. Whereas the Vul-
ture was underdeveloped and unreliable, the
Double Wasp was not only developed and
thoroughly reliable, but a robust radial.
The contrast in the aircraft is even more
stark. Whereas the Marauder was a compar-
atively diminutive aircraft with an initial span
of 65ft and length of 56ft, the Manchester was
much larger, spanning 90ft lin and having a
length of 69ft 4/i in. In keeping with their size
the Marauder initially operated at an all up
weight of only 27,200 Ib, whereas the RAF
were soon attempting to operate the Man-
Chester at 45,000 Ib. Even when latterly some
semblance of reliability was available in the
Vulture, the Manchester thus had a weight
penalty approaching 18,000 Ib in comparison
to its lighter near-contemporary.
Sat Dec 20, 2008 9:20 am
Wed Dec 31, 2008 5:32 pm
Wed Dec 31, 2008 6:44 pm
Wed Dec 31, 2008 6:58 pm