Lockheed XV-4 'Hummingbird'

lark

CLEARANCE: Top Secret
Senior Member
Joined
Feb 17, 2006
Messages
1,776
Reaction score
0
Lockheed produced several initial designs leading
to the Hummingbird.
One of them was the GL-224-2 concept.
Is there anyone who can help with a decent three view drawing or an
other illustration about?

The 'X' plane book No.5 -HPM Publications haves an illustration
but in my copy the drawing is almost invisible.

Thanks in advance.
 

Antonio

CLEARANCE: Top Secret
Staff member
Joined
Jan 22, 2006
Messages
3,344
Reaction score
0
It's almost impossible to see anything but it looks almost identical to GL-224-3 whith less prominent intakes.
 

circle-5

CLEARANCE: Top Secret
Senior Member
Joined
May 31, 2009
Messages
1,158
Reaction score
0
While testing the XV-4A (but prior to the XV-4B redesign) Lockheed offered a production variant of the Hummingbird, which is briefly described in Jane's All The World Aircraft, 1964-65.

Attached is a factory model of this production variant (V-4A?). A comparison photo with the VZ-10 (XV-4A) model shows numerous aerodynamic and design improvements. Among them is the large ventral weapons fairing, shorter tail fin, reduced stabilizer area, extended intakes, different canopy, integrated puffer jets, canted wingtip fairings, tail probe, single VTOL intake doors (instead of split louvers), etc.

Additional info, drawings and data are always welcomed.
 

Attachments

Stargazer2006

CLEARANCE: Above Top Secret
Staff member
Senior Member
Joined
Jun 25, 2009
Messages
13,244
Reaction score
0
  • An item on the Hummingbird's first flight (Army Research and Development Newsmagazine, September 1962)
  • Another item on the Hummingbird's first flight (US Army's Aviation Digest, September 1962)
  • Artwork depicting jet ejection lift
 

Attachments

Jemiba

CLEARANCE: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Mar 11, 2006
Messages
7,949
Reaction score
0
lark said:
... Is there anyone who can help with a decent three view drawing or an
other illustration about?
Have looked through this and some other threads, but couldn't find a better drawing,
so I hope, that this one, though far from being perfect, is just about 8 years late .... ;)
(from vertiflite July 1963)
 

Attachments

lark

CLEARANCE: Top Secret
Senior Member
Joined
Feb 17, 2006
Messages
1,776
Reaction score
0
Thanks Jens,

Better late than never :)

We,at last have an idea about now..
 

Pioneer

Seek out and close with the enemy
Joined
May 22, 2006
Messages
1,601
Reaction score
0
Justo Miranda said:
Drawings here
Hey, nice find gents with the desk-top models and drawings gents!!
Justo Miranda that cut-away drawing of the Hummingbird really emphasised to me the internal volume and weight of the separate lift and propulsion jet arrangement takes up within such a design!!

Regards
Pioneer
 

Jemiba

CLEARANCE: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Mar 11, 2006
Messages
7,949
Reaction score
0
Tried to clean up the above posted drawing, but without much success. So
I decided to redraw it, but I encountered several uncertainties.
The actual arrangement of the augmentor on the upper side of the
fuselage isn't clear to me, as well, as the position of the bulge at the
fuselage sides, visible on the top view, but not on side view.
If someone has better ideas, just tell us.
And if someone wants to make changes by himself, I've attached the sketch
as pdf-file, suitable to be imported to Inkscape or CorelDraw.
 

Attachments

Pioneer

Seek out and close with the enemy
Joined
May 22, 2006
Messages
1,601
Reaction score
0
Nice job Jemiba on the clean up!!

Regards
Pioneer
 

Orionblamblam

CLEARANCE: Above Top Secret
Top Contributor
Senior Member
Joined
Apr 5, 2006
Messages
7,183
Reaction score
0
Website
www.up-ship.com
Here's a kinda craptacular piece of art showing the GL-224-2 pilot rescue vehicle in action with the C-130 mothership orbiting above.
 

Attachments

blackkite

Don't laugh, don't cry, don't even curse, but.....
Joined
May 31, 2007
Messages
5,583
Reaction score
0
This picture shows XV-4A main engine, exhaust gas shout off valve, exhaust gas manifold and ejector nozzle manifold.
Upper engine shows cruising condition and bottom engine shows hovering condition.
Correction is given to this picture. (White color zone, parts name)
Thrust amplification of this system is small.(smaller than 1.2)
The ejector principle was applied with notably disappointing results to the Rockwell XFV-12A and the Lockheed XV-4A.
Ejector induced flow also push the aircraft to downward direction. ;D

Rockwell XFV-12A
https://thelexicans.files.wordpress.com/2013/08/rockwellxfv12athrustaug.jpg
 

Attachments

Top