[net.aviation] \"Was It Something I Said\", et al.

kallis@pen.DEC (06/17/85)

On the subject of "most beautiful aircraft," I can think of only
one *family* of aircraft that this applies to from an aesthetic
standpoint: the Northrop Flying Wings.  There were several technical
reasons these aircraft didn't "take hold," but looking at them in 
flight, they were beautiful (perhaps the only readily available footage
worth seeing's buried in the 1950s-timeframe science fiction movie, _War
of the Worlds_, where a YB49 was used to drop a nuclear weapon (unsuccess-
fully) on the invading Martians).  there are aircraft I have a greater
emotional attachment to, such as the DC-3, or my beloved PA28-151, but
for sheer beauty (and a sort of timelessness: the basic configuration is as
ancient/modern as an eagle), you can't touch a Flying Wing, in my opinion.

Steve Kallis, Jr.

ems@amdahl.UUCP (ems) (06/20/85)

> On the subject of "most beautiful aircraft," I can think of only
> one *family* of aircraft that this applies to from an aesthetic
> standpoint: the Northrop Flying Wings.  There were several technical
> reasons these aircraft didn't "take hold," but looking at them in 
> flight, they were beautiful [...]
> for sheer beauty (and a sort of timelessness: the basic configuration is as
> ancient/modern as an eagle), you can't touch a Flying Wing, in my opinion.
> 
> Steve Kallis, Jr.

I have seen some footage of the Flying Wing and read that the
demise was more a political (DoD politics) one than a technical one.
What were the technical reasons you mention?  Are these reasons also
why we don't see experimental kit flying wings?
-- 

E. Michael Smith  ...!{hplabs,ihnp4,amd,nsc}!amdahl!ems

This is the obligatory disclaimer of everything. (Including but
not limited to: typos, spelling, diction, logic, and nuclear war)

dbp@dataio.UUCP (Dave Pellerin) (06/26/85)

>
>I have seen some footage of the Flying Wing and read that the
>demise was more a political (DoD politics) one than a technical one.
>What were the technical reasons you mention?  Are these reasons also
>why we don't see experimental kit flying wings?
>
>E. Michael Smith  ...!{hplabs,ihnp4,amd,nsc}!amdahl!ems

Whatever the reason for the it's demise, there are flying wings
available in kit form for homebuilders.  The one that comes to
mind is the Mitchell U-2.  This was designed by Don Mitchell, who
claims he was an engineer on the real Flying Wing.

The wing planform of the U-2 is similar to it's much larger
relative; swept back leading edge, trailing edge 'elevons', rear
engine mounted on a central cockpit pod.  'Tuck' (the tendancy
for a flying wing to pitch forward) is prevented by keeping the
swept back wingtips artificially 'washed-out' via the elevons.
Yaw control is via drag rudders on the tips.

Flying wing designs are not that technically challenging, they
just don't offer enough advantages over conventional or canard
designs, and are less forgiving of changes in CG, trim, diff-
erential thrust, etc.


			Dave Pellerin
		...uw-beaver!entropy!dataio!dbp

warner@orca.UUCP (Ken Warner) (07/01/85)

[FLYS]
And Northrop is resurecting the flying wing as the stealth bomber.
Won't that be a pretty ship!?!?

dsmith@hplabsc.UUCP (David Smith) (07/09/85)

>
>I have seen some footage of the Flying Wing and read that the
>demise was more a political (DoD politics) one than a technical one.
>What were the technical reasons you mention?  Are these reasons also
>why we don't see experimental kit flying wings?
>

I don't have the references, but what I have read about the demise of the
B-49 is:

Political:  Some powerful congressmen were trying to consolidate the
    defense industry, and pushed Northrop to merge with Convair.  Northrop
    refused, and the congressmen made sure that the B-49 was not bought.

Technical:  The B-49 was beaten by the B-47, which was a more stable
    bombing platform.  It had long, flexible wings to absorb gusts,
    letting the fuselage ride more smoothly, and it had a longer tail
    moment arm.

It seems that the relative importance of these factors is still a topic of
disagreement.  Northrop believes it was an entirely political decision.

		David Smith
		ucbvax!hplabs!dsmith

dsmith@hplabsc.UUCP (David Smith) (07/10/85)

Taken from "Bomber 47" by Walt Boyne (Executive Officer of the National
Air and Space Museum), in the August 1981 Wings magazine:

	The Northrop YB-49 was a later competitor to the B-47, an outgrowth
	of the piston engine XB-35 flying wing.  Top speed was close to 500
	mph.  Aircraft was not produced due to politics or stability
	problems, depending upon which argument you prefer.  But although
	the "Flying Wing" exhibited great range, handled well, and carried
	a large bombload, it was nearly 100 mph slower than the B-47 and
	required a crew of eight.

The B-47 carried a crew of three, and had six engines to the YB-49's eight.
I don't know how the ranges and bombloads compared.  But if the B-49 was
meant to be a long-range, heavy bombload aircraft, it may have been boxed
in by the B-52.

By the way, the Northrop Stealth Bomber now in development is a flying
wing.

			David Smith
			ucbvax!hplabs!dsmith