• Hi Guest! Forum rules have been updated. All users please read here.

Boeing-Vertol Model 179 YUH-61A UTTAS / Model 237 LAMPS contender

Abraham Gubler

ACCESS: Top Secret
Senior Member
Joined
Mar 18, 2008
Messages
3,555
Reaction score
230
Some information on the Boeing Vertol Model 237 (YUH-61A) offer for the Utility Tactical Transport Aircraft System (UTTAS) project (lost to the Sikorsky Black hawk). A few of their period adverts.
 

Attachments

  • boeing_uttas.jpg
    boeing_uttas.jpg
    50.6 KB · Views: 1,049
  • boeing_uttas_rotor.jpg
    boeing_uttas_rotor.jpg
    44.5 KB · Views: 1,002
  • boeing_uttas_lamps.jpg
    boeing_uttas_lamps.jpg
    43.5 KB · Views: 1,051

flateric

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
9,151
Reaction score
1,289
I have an old promotional brochure that damn don't fit the scaner...
 

Attachments

  • yuh-61.jpg
    yuh-61.jpg
    141.3 KB · Views: 907

AeroFranz

ACCESS: Top Secret
Senior Member
Joined
May 4, 2008
Messages
2,317
Reaction score
245
FYI there is an article complete with cutaways (both Army and Navy versions IIRC) on the Flight Archives.
 

flateric

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
9,151
Reaction score
1,289
http://www.flightglobal.com/pdfarchive/view/1976/1976%20-%201601.html and following pages
 

alanqua

I dunno if she's the wife of my life
Joined
Aug 31, 2007
Messages
99
Reaction score
172
Thank you!
Pardon me, but it does not talk about the Navy version of the YUH-61 (LAMPS). I've been searchin for this one in Flight Archives but never found something.

Regards
Alain
 

AeroFranz

ACCESS: Top Secret
Senior Member
Joined
May 4, 2008
Messages
2,317
Reaction score
245
That's my bad. :-[
I did not read the article but just saved it for future reading because I found it while looking for something else, and I thought i saw two cutaways differing only in landing gear arrangement (hence army/navy version). i see now the second cutaway is the S-60.
 

overscan (PaulMM)

Administrator
Staff member
Joined
Dec 27, 2005
Messages
12,862
Reaction score
4,774
Some Boeing YUH-61 pics via sobchak.wordpress.com (note: site is a blog, you may find off-topic or objectionable material...)
 

Attachments

  • 6121.jpg
    6121.jpg
    90.2 KB · Views: 179
  • 616.jpg
    616.jpg
    112.4 KB · Views: 222
  • 615.jpg
    615.jpg
    133.1 KB · Views: 197
  • 614.jpg
    614.jpg
    131.8 KB · Views: 177
  • 613.jpg
    613.jpg
    113.3 KB · Views: 157
  • 612.jpg
    612.jpg
    150 KB · Views: 177
  • 611.jpg
    611.jpg
    94.8 KB · Views: 821

Skybolt

ACCESS: Top Secret
Senior Member
Joined
Jun 14, 2006
Messages
2,299
Reaction score
154
There was a fine document on DTIC a couple of years ago on YUH-61. Disappeared, and who knows were it is on my disks...
 

Tailspin Turtle

ACCESS: Top Secret
Senior Member
Joined
Dec 6, 2007
Messages
699
Reaction score
121
Website
www.tommythomason.com
alanqua said:
Thank you!
Pardon me, (deleted) but it does not talk about the Navy version of the YUH-61 (LAMPS). I've been searchin for this one in Flight Archives but never found something.

Regards
Alain
 

Attachments

  • yuh-61-LAMPS_01.jpg
    yuh-61-LAMPS_01.jpg
    57.4 KB · Views: 369

hesham

ACCESS: USAP
Senior Member
Joined
May 26, 2006
Messages
27,775
Reaction score
4,894
Hi,

the Boeing Vertol LAMPS version was called BV.237.
 

JohnR

ACCESS: Top Secret
Senior Member
Joined
Sep 8, 2006
Messages
790
Reaction score
236
From what I recall there wasn't much in terms of performance between the Boeing and Sikorsky UTTAS, I remember the story of the Boeing crashing into a stand of Oaks and being repaired. And personaly I consider that the Boeing design was better aesthetically.

Why was the Blackhawk eventually selected?
 

Tailspin Turtle

ACCESS: Top Secret
Senior Member
Joined
Dec 6, 2007
Messages
699
Reaction score
121
Website
www.tommythomason.com
SteveO said:
Why is the main rotor shaft a lot longer in the naval variant ???
To make a long story short, both the Sikorsky and Boeing candidates had problems due to the very short rotor shaft dictated by the requirement for air transportability. Sikorsky solved the problem by using a readily removable section of rotor shaft to reduce the overall height of the helicopter. When Boeing engineers modified their design for the Navy program, they lengthened the main rotor shaft.
 

Abraham Gubler

ACCESS: Top Secret
Senior Member
Joined
Mar 18, 2008
Messages
3,555
Reaction score
230
Tailspin Turtle said:
To make a long story short, both the Sikorsky and Boeing candidates had problems due to the very short rotor shaft dictated by the requirement for air transportability. Sikorsky solved the problem by using a readily removable section of rotor shaft to reduce the overall height of the helicopter. When Boeing engineers modified their design for the Navy program, they lengthened the main rotor shaft.

That's an interesting design problem. Having seen a few helos loaded into An-124s, C-17s it is the rotor hub that is always the tight fit. I would have thought approaching the problem laterally would have been the way and using crouching undercarriage. Leave the rotor hub be and lower the height by lowering the ground clearance.
 

Tailspin Turtle

ACCESS: Top Secret
Senior Member
Joined
Dec 6, 2007
Messages
699
Reaction score
121
Website
www.tommythomason.com
JohnR said:
From what I recall there wasn't much in terms of performance between the Boeing and Sikorsky UTTAS, I remember the story of the Boeing crashing into a stand of Oaks and being repaired. And personaly I consider that the Boeing design was better aesthetically.

Why was the Blackhawk eventually selected?

At the risk of oversimplifying, and based on correspondence with an Army official involved in the selection, the prototypes of both helicopters were found to have significant problems during the fly off for which both companies proposed credible solutions. However, the Boeing UTTAS design incorporated an advanced Bölkow-type hingeless rotor that was considered higher risk by the Army evaluators, particularly from a development schedule standpoint. The Sikorsky UTTAS proposal had a more conventional rotor of a larger diameter and was therefore considered to be more likely to meet the challenging hover requirement and also have better high-speed maneuverability. Boeing management disagreed with the risk assessment, of course, and believed that if they had just had a little more time to develop and demonstrate fixes to the excessive YUH-61 vibration problem, the decision would have gone the other way. That they ran out of time might have been due to the fact that they refused until the last minute to raise the rotor higher above the fuselage as shown in their Navy LAMPS proposal.
 

JohnR

ACCESS: Top Secret
Senior Member
Joined
Sep 8, 2006
Messages
790
Reaction score
236
Interesting and very concise, you've answered my question nicely.

Thanks.
 

alanqua

I dunno if she's the wife of my life
Joined
Aug 31, 2007
Messages
99
Reaction score
172
Hi,

To illustrate the debate, here are some drawings I made and publish in "Le Fana de l'Aviation" quite some time ago.
- General 3 view plan of the YUH-61
- One view of the LAMPS

Regards
Alain
 

Attachments

  • Plan YSUH-61 No2.jpg
    Plan YSUH-61 No2.jpg
    659.3 KB · Views: 631

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Additional Boeing-Vertol YUH-61 UTTAS images.
 

Attachments

  • h61nv2402dj0.jpg
    h61nv2402dj0.jpg
    33.3 KB · Views: 343
  • yuh61-i.jpg
    yuh61-i.jpg
    19.9 KB · Views: 328
  • AA2086_YUH-61_real_1.jpg
    AA2086_YUH-61_real_1.jpg
    19.9 KB · Views: 333
  • 1975_02817L.JPG
    1975_02817L.JPG
    20 KB · Views: 332

alanqua

I dunno if she's the wife of my life
Joined
Aug 31, 2007
Messages
99
Reaction score
172
Nice!
I did not have the one with the air intake in the airflow test facility (first of your photo). Do you have other pictures like that?
Regards
ALain
 

hesham

ACCESS: USAP
Senior Member
Joined
May 26, 2006
Messages
27,775
Reaction score
4,894
Hi,

here is the Boeing-Vertol BV.237 LAMPS III mock-up.
 

Attachments

  • Boeing Vertol BV.237.jpg
    Boeing Vertol BV.237.jpg
    50.9 KB · Views: 169
  • BV.237 data.JPG
    BV.237 data.JPG
    46.4 KB · Views: 157

Howedar

ACCESS: Confidential
Joined
Sep 24, 2008
Messages
58
Reaction score
1
It lost the competition to Sikorsky's S-70 (SH-60, in this particular case) for LAMPS-III (and, as I recall, the Army competition as well).
 

Pioneer

Seek out and close with the enemy
Senior Member
Joined
May 22, 2006
Messages
1,965
Reaction score
371
Hey Hesham
I found this on one of my discs. I am sorry but I have no source!


Regards
Pioneer
 

AeroFranz

ACCESS: Top Secret
Senior Member
Joined
May 4, 2008
Messages
2,317
Reaction score
245
I think there is already another thread on YUH-61...
 

Stargazer2006

ACCESS: USAP
Senior Member
Joined
Jun 25, 2009
Messages
13,227
Reaction score
644
LAMPS III was the Boeing Vertol BV-237, while UTTAS was the BV-179. Although they had much in common, they can be considered as two separate designs and I believe therefore that each deserves a thread of its own!
 

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Model of Boeing YUH-61 UTTAS found on eBay. Manufacturer of model is unknown.

URL: http://cgi.ebay.com/TOPPING-LIKE-BOEING-YUH-61-ULTRA-RARE-MODEL-1970S-/170531827545?pt=LH_DefaultDomain_0

Description:
UP FOR BID WITH "NO RESERVE" IS A RARE DESK MODEL OF THE EXPERIMENTAL ARMY HELICOPTER KNOWN AS THE YUH-61( AKA MODEL 179) CONCEIVED BY BOEING IN THE MID 1970'S WHEN COMPETING FOR A "UTTAS" PROGRAM IN COMPETITION WITH SIKORSKY'S S-60 (WHO WON). THIS DESK MODEL WAS MADE FOR BOEING POSSIBLY BY TOPPING OR ROLEN AND DISTRIBUTED TO ARMY GENERALS AT THE PENTAGON.

THE MODEL IS IN PRISTINE CONDITION WITH NO MISSING PARTS THAT I CAN TELL NOR ANY CRACKS OR GLUED AREAS ANYWHERE. IT'S AN AWESOME MODEL TO LOOK AT, AND OWN IN ONE'S COLLECTION AS ONLY THREE EXPERIMENTAL ONES WERE EVER MADE AND NEVER WENT INTO PRODUCTION. THIS HELICOPTER HAD 4 BLADES NOT 2.

THE MODEL IS LIKE NEW AND IS IN EXCELLENT CONDITION AND COMES WITH 2(DOUBLE) ROTOR BLADES, A TAIL ROTOR AND A BLACK PLASTIC STAND. THE STAND HAS NO MARKINGS WHATSOEVER. NOT SURE IF THE MODEL IS MADE OF PLASTIC OR FIBERGLASS, EITHER WAY IT'S AN OUTSTANDING MODEL TO OWN AND ADD TO ANY HELICOPTER COLLECTION. THIS ONE WAS PURCHASED ALMOST 20 YEARS AGO FROM A GOOD FRIEND PILOT (DECEASED)WHO CAPTAINED A GOLDEN DC9 OWNED BY THE LATE MALCOLM FORBES.

THE MODEL IS APPROXIMATELY 13 INCHES LONG. I BELIEVE THE SCALE MAY BE 1:48. I HAVE NOT SEEN ANOTHER ONE LIKE IT IN MY 35 YEARS OF COLLECTING HELIS EXCEPTING ONE (1) EXAMPLE AT THE HELICOPTER MUSEUM IN VIRGINIA.
 

Attachments

  • !B1FU2mwCWk~$(KGrHqF,!hEEw5g95lwiBMdBqQUGr!~~_3.jpg
    !B1FU2mwCWk~$(KGrHqF,!hEEw5g95lwiBMdBqQUGr!~~_3.jpg
    36.4 KB · Views: 59
  • !B1FUvZgBGk~$(KGrHqN,!hMEw5FOsQF9BMdBp+vupw~~_3.jpg
    !B1FUvZgBGk~$(KGrHqN,!hMEw5FOsQF9BMdBp+vupw~~_3.jpg
    39.7 KB · Views: 51
  • !B1FUelg!Wk~$(KGrHqZ,!jQE)pqshS3NBMdBpYuTU!~~_3.jpg
    !B1FUelg!Wk~$(KGrHqZ,!jQE)pqshS3NBMdBpYuTU!~~_3.jpg
    46.8 KB · Views: 46
  • !B1FUWTQB2k~$(KGrHqJ,!ioE)qvmEv3pBMdBpF,+Gg~~_3.jpg
    !B1FUWTQB2k~$(KGrHqJ,!ioE)qvmEv3pBMdBpF,+Gg~~_3.jpg
    46.4 KB · Views: 50
  • !B1FUNn!CGk~$(KGrHqJ,!iwE)r5LhgtmBMdBo)qTKg~~_3.jpg
    !B1FUNn!CGk~$(KGrHqJ,!iwE)r5LhgtmBMdBo)qTKg~~_3.jpg
    39.9 KB · Views: 48
  • !B1FT99wBWk~$(KGrHqF,!hcEw5B(QMqWBMdBoMNFRg~~_3.jpg
    !B1FT99wBWk~$(KGrHqF,!hcEw5B(QMqWBMdBoMNFRg~~_3.jpg
    46.1 KB · Views: 50
  • !B1FT2FQEWk~$(KGrHqF,!h8E)qs+dzZTBMdBn5gjmQ~~_3.jpg
    !B1FT2FQEWk~$(KGrHqF,!h8E)qs+dzZTBMdBn5gjmQ~~_3.jpg
    44.9 KB · Views: 53
  • !B1FTt7!!mk~$(KGrHqZ,!jYE)pKuDO19BMdBnlY2Hw~~_3.jpg
    !B1FTt7!!mk~$(KGrHqZ,!jYE)pKuDO19BMdBnlY2Hw~~_3.jpg
    37.6 KB · Views: 53

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Model of Boeing YUH-61 UTTAS found on eBay. Manufacturer of model is unknown.
 

Attachments

  • !B1FUFIg!2k~$(KGrHqZ,!hQEw5JDJhVtBMdBoegBWQ~~_3.jpg
    !B1FUFIg!2k~$(KGrHqZ,!hQEw5JDJhVtBMdBoegBWQ~~_3.jpg
    34.1 KB · Views: 39
  • !B1FUm-!EWk~$(KGrHqR,!jQE)pwI-skTBMdBpsck1!~~_3.jpg
    !B1FUm-!EWk~$(KGrHqR,!jQE)pwI-skTBMdBpsck1!~~_3.jpg
    50.3 KB · Views: 35
  • !B1FVEpQ!2k~$(KGrHqJ,!h!Ew5I(pyeSBMdBq)3,rw~~_3.jpg
    !B1FVEpQ!2k~$(KGrHqJ,!h!Ew5I(pyeSBMdBq)3,rw~~_3.jpg
    34.6 KB · Views: 34
  • !B1FU9cQEGk~$(KGrHqV,!icE)q7oeumDBMdBqh!qyg~~_3.jpg
    !B1FU9cQEGk~$(KGrHqV,!icE)q7oeumDBMdBqh!qyg~~_3.jpg
    36 KB · Views: 43

flateric

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
9,151
Reaction score
1,289
11/18/75 YUH-61A UTTAS 01 mishap report and photos
http://ww.chinook-helicopter.com/news/Boeing/CH-47C_Slings_UTTAS_001_November_1975.pdf
 

flateric

ACCESS: Above Top Secret
Staff member
Top Contributor
Senior Member
Joined
Apr 2, 2006
Messages
9,151
Reaction score
1,289
some graphics from http://www.dtic.mil/srch/doc?collection=t3&id=ADA063712
all other YUH-61A related docs at DTIC are unaccessible
 

Attachments

  • YUH-61 1.485 scale model.jpg
    YUH-61 1.485 scale model.jpg
    1.3 MB · Views: 266

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Boeing Vertol YUH-61A UTTAS model found on eBay.

URL:
http://cgi.ebay.co.uk/BOEING-VERTOL-YUH-61A-/200615926241?pt=UK_ToysGames_ModelKits_ModelKits_JN&hash=item2eb5a419e1
 

Attachments

  • $(KGrHqR,!iwE3QhUi8nSBN6fEfJfH!~~0_12.jpg
    $(KGrHqR,!iwE3QhUi8nSBN6fEfJfH!~~0_12.jpg
    45.9 KB · Views: 203
  • $(KGrHqQOKpcE3JTCJC14BN6fEW!Gn!~~0_12.jpg
    $(KGrHqQOKpcE3JTCJC14BN6fEW!Gn!~~0_12.jpg
    44.8 KB · Views: 199
  • $(KGrHqEOKi0E3BEqIfFyBN6fEJhw5w~~0_12.jpg
    $(KGrHqEOKi0E3BEqIfFyBN6fEJhw5w~~0_12.jpg
    29.8 KB · Views: 201
  • $(KGrHqZ,!l!E3HniKtCuBN6fD9cQo!~~0_12.jpg
    $(KGrHqZ,!l!E3HniKtCuBN6fD9cQo!~~0_12.jpg
    39.3 KB · Views: 211
  • $(KGrHqIOKokE3ElchmfYBN6fD0y4b!~~0_12.jpg
    $(KGrHqIOKokE3ElchmfYBN6fD0y4b!~~0_12.jpg
    44.4 KB · Views: 242

Stingray

Resident retro rainbow rotorhead nerdy girl, uwu
Senior Member
Joined
Nov 30, 2007
Messages
415
Reaction score
102
Website
sites.google.com

Attachments

  • UTTAS0005.jpg
    UTTAS0005.jpg
    92.1 KB · Views: 121
  • UTTAS0006.jpg
    UTTAS0006.jpg
    78.2 KB · Views: 117
  • UTTAS0007.jpg
    UTTAS0007.jpg
    85.1 KB · Views: 126
  • UTTAS0011.jpg
    UTTAS0011.jpg
    119.1 KB · Views: 119
  • UTTAS0012.jpg
    UTTAS0012.jpg
    80 KB · Views: 184
  • UTTAS0027.jpg
    UTTAS0027.jpg
    101.8 KB · Views: 185
  • UTTAS0026.jpg
    UTTAS0026.jpg
    76.1 KB · Views: 188
  • UTTAS0025.jpg
    UTTAS0025.jpg
    92.2 KB · Views: 186

Stingray

Resident retro rainbow rotorhead nerdy girl, uwu
Senior Member
Joined
Nov 30, 2007
Messages
415
Reaction score
102
Website
sites.google.com
More:
 

Attachments

  • AATB0041.jpg
    AATB0041.jpg
    228.3 KB · Views: 114
  • AATB0061.jpg
    AATB0061.jpg
    68.2 KB · Views: 112
  • AATB0087.jpg
    AATB0087.jpg
    113.7 KB · Views: 111
  • Helo history pics0142.jpg
    Helo history pics0142.jpg
    110.1 KB · Views: 85
  • D1_UTTAS0002.jpg
    D1_UTTAS0002.jpg
    72.9 KB · Views: 90
  • UTTAS0001.jpg
    UTTAS0001.jpg
    54.5 KB · Views: 78

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Boeing Vertol YUH-61A press photo circa 1973.

Source:
http://www.ebay.com/itm/1973-Boeing-Vertol-Division-Press-Photo-/200794612810?pt=Art_Photo_Images&hash=item2ec04aa44a
 

Attachments

  • 6_13_308_img2766A.jpg
    6_13_308_img2766A.jpg
    72.8 KB · Views: 494
  • 6_13_308_img2766B.jpg
    6_13_308_img2766B.jpg
    86.8 KB · Views: 471

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Boeing Vertol Model 179 commercial variant.

Source:
http://www.ebay.com/itm/1973-Boeing-Vertol-Division-Model-179-helicopter-Press-Photo-/190704754255?pt=Art_Photo_Images&hash=item2c66e39e4f
 

Attachments

  • 6_13_308_img2767B.jpg
    6_13_308_img2767B.jpg
    70.5 KB · Views: 416
  • 6_13_308_img2767A.jpg
    6_13_308_img2767A.jpg
    69.6 KB · Views: 467

Stargazer2006

ACCESS: USAP
Senior Member
Joined
Jun 25, 2009
Messages
13,227
Reaction score
644
A general arrangement of the 19-passenger, twin-turbine Boeing Vertol Model 179 helicopter, originating from the company:
 

Attachments

  • 179 general arrangement.gif
    179 general arrangement.gif
    91.5 KB · Views: 385

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Full-scale mock-up of the Boeing Vertol 237 which is being developed to meet the U.S. Navy's requirement for a Light Airborne Multi-Purpose System (LAMPS) - shipborne anti-submarine helicopter.

Source:
http://crimso.msk.ru/Site/Crafts/Craft21783.htm
 

Attachments

  • 5-3.jpg
    5-3.jpg
    51.6 KB · Views: 125

Triton

Donald McKelvy
Senior Member
Joined
Aug 14, 2009
Messages
9,719
Reaction score
803
Website
deeptowild.blogspot.com
Source:
http://www.ebay.com/itm/Boeing-Vertol-YUH-61-A-UTTAS-Helicopter-1975-print-Ad-advertisement-/360473086955?pt=LH_DefaultDomain_0&hash=item53eddecbeb
http://www.ebay.com/itm/Boeing-Vertol-YUH-61-A-UTTAS-Helicopter-Spill-Proof-Seat-1975-Ad-advertisement-/140797924039?pt=LH_DefaultDomain_0&hash=item20c835d2c7
 

Attachments

  • b51120.jpg
    b51120.jpg
    76.2 KB · Views: 99
  • b51121.jpg
    b51121.jpg
    85.6 KB · Views: 127

Stargazer2006

ACCESS: USAP
Senior Member
Joined
Jun 25, 2009
Messages
13,227
Reaction score
644
Promotional photo of the Model 237:
 

Attachments

  • 237 mockup.jpg
    237 mockup.jpg
    635.2 KB · Views: 203

Similar threads

Top