26 Jun
2015
26 Jun
'15
1:44 p.m.
On 2015-06-26 12:47 AM, Robert Ollerton wrote:
Im pretty sure there is a book on this, perhaps from
the Smithsonian
Air and Space Museum.
As it so happens, within arm's reach of where I'm sitting I have what is
probably the book you refer to:
Gary R. Pape, John M. Campbell, "Northrop Flying Wings: A History of
Jack Northrop's Visionary Aircraft", Shiffer, 1995
It's a large-format book on glossy paper with tons of illusrations; it covers
the prototypes as well as the bombers, and in great detail. Highly
recommended.
Much later, Jack was given a vip tour of the secret B2
factory and
presented with a model of the design in Lancaster CA before his death.
Yes, a famous story in the aviation world. Somebody had a lot of class.
The book has a picture of Jack with the B-2 design team.
{Hope I got the attribution right here: I didn't get the intermediate
messages, so I'm picking this out of a later reply.}
> On 2015-06-19 3:05 PM, geneb wrote:
> it's my understanding that the program was
cancelled because at the
> time, the USAAF (USAF?) mandated stall testing as part of their
> development programs. Without serious flight control computers,
> stalling a flying wing just ends up in a freshly planted aluminum tree.
Umm, not quite. See pp. 160-161; they did deliberately stall a YB-49 as part
of the flight test program; it was pretty benign unless the CG was way aft,
in which case it became a handful.
The Air Force did lose one during flight testing, it is thought perhaps as
the result of a spin; it is further thought that perhaps Northrop's guidance
on how to handle spins in this very unusual flying device wasn't given to the
test pilots - one of whom was Glen Edwards, who the Edwards AFB is named
after.
The book isn't clear on why the wings were dropped; it seems to have been a
combination of DoD budget limitations, cost over-runs in the wing program,
the loss of the two YB-49 prototypes in accidents, etc.
Noel