Advanced Medium STOL Transport (AMST) and its predecessors

[Triton]

Boeing YC-14 cross-section artwork photo found on eBay.

URL:
http://www.ebay.com/itm/85-PLUS-VINTAGE-1970-S-BOEING-CONCEPT-VEHICLE-YC-14-ORIGINAL-MILITARY-PHOTOS-/140776979897?pt=LH_DefaultDomain_0&hash=item20c6f63db9

 

[Triton]

The seller had 85 photos from the estate of a Boeing engineer. I wonder what other concepts may be hiding in that pile?

 

[Triton]

Source:
http://www.ebay.com/itm/1976-Boeing-YC-14-Press-Photo-/200764268510?pt=Art_Photo_Images&hash=item2ebe7b9fde
http://www.ebay.com/itm/1975-Artist-Rendering-YC14-Boeing-Wire-Photo-/280945046994?pt=Art_Photo_Images&hash=item4169a135d2
http://www.ebay.com/itm/1973-Boeing-Soft-Take-off-and-Landing-Press-Photo-/200795284351?pt=Art_Photo_Images&hash=item2ec054e37f

 

[Triton]

Visitors inspected the Boeing YC-14 prototype at Boeing Field today [June 11,. 1976]. The Boeing Aerospace Co. unveiled its revolutionary new military transport, the YC-14 prototype, at Boeing Field today. The powerful, twin-engined transport, about the size of a 727 trijet, was displayed at the Boeing Flight center in a 45-minutes ceremony. Air Force Lt. Gen. James T. Stewart said the new Boeing aircraft or its or its McDonnell Douglas competitor could lead to production of more than 1,000 planes for this nation and foreign countries. "I can visualize a big market potentially commercially adaptable," Stewart said. "But the first step has to be taken by the [United States Air Force]"

Source:
http://www.ebay.com/itm/1976-Boeing-YC-14-Press-Photo-/200762034219?pt=Art_Photo_Images&hash=item2ebe59882b

 

[Triton]

Photos of the Boeing YC-14 circa 1976.

Source:
http://www.ebay.com/itm/1976-Boeing-YC-14-Boeing-Flight-Center-Press-Photo-/200760545450?pt=Art_Photo_Images&hash=item2ebe42d0aa
http://www.ebay.com/itm/1976-Boeing-YC-14-at-Boeing-Field-Press-Photo-/200764268495?pt=Art_Photo_Images&hash=item2ebe7b9fcf
http://www.ebay.com/itm/1976-Boeing-YC-14-in-flight-Press-Photo-/200760545475?pt=Art_Photo_Images&hash=item2ebe42d0c3
http://www.ebay.com/itm/1976-Boeing-YC-14-Press-Photo-/200760094379?pt=Art_Photo_Images&hash=item2ebe3beeab
http://www.ebay.com/itm/1973-Boeing-YC-14-being-constructed-Press-Photo-/200760545029?pt=Art_Photo_Images&hash=item2ebe42cf05
http://www.ebay.com/itm/1976-Boeing-YC-14-military-plane-Press-Photo-/200762034316?pt=Art_Photo_Images&hash=item2ebe59888c
http://www.ebay.com/itm/1976-Boeing-YC-14-Press-Photo-/200760545570?pt=Art_Photo_Images&hash=item2ebe42d122

 

[Triton]

http://www.ebay.com/itm/1976-Boeing-YC-14-Seattle-Plant-Press-Photo-/200760545443?pt=Art_Photo_Images&hash=item2ebe42d0a3

 

[Triton]

Photos of the Boeing YC-14 from the National Museum of the Air Force collection.

Source:
http://www.nationalmuseum.af.mil/photos/media_search.asp?q=yc&page=7
http://www.nationalmuseum.af.mil/photos/media_search.asp?q=YC-14&page=2
http://www.nationalmuseum.af.mil/photos/media_search.asp?q=YC-14&page=1

 

[Stargazer]

I love that aircraft. Thank you so much for these wonderful pictures!

 

[Stargazer]

What a treat... Thanks!

 

[hesham]

By the way,


McDonnell Douglas XC-15 was called D-915;


http://www.dtic.mil/dtic/tr/fulltext/u2/b002859.pdf

 

[Pioneer]

Great find Hesham!!!

Thanks for sharing ;D

Regards
Pioneer

 

[Stargazer]

McDonnell Douglas XC-15 was called D-915;

Yes. There were also operational configurations proposed to the AMST System designated as D915B and D915P.

However, the designation "XC-15" is totally inappropriate. It was YC-15A (though plain "YC-15" was often used for promotional purposes).

 

[hesham]

Hello Friends!
AMST Competition, 5 prorosals:
1) Boeing Model 953-------------YC-14
2) McDonnell-Douglas Model D-?--YC-15
3) Lockheed-Georgia/North American Rockwell Model ?
4) ? Model ?
5) ? Model ?

Thank you my dear Pioneer,

here is,we can say for AMST Competition,5 proposals;

1) Boeing Model 953 (YC-14)
2) McDonnell Douglas D-915B & D-915P (YC-15)
3) Lockheed-Georgia/North American Rockwell LG-203 & D-516
4) General Dynamics Model-?
5) Bell Model-? or D-?

 

[Triton]

McDonnell Douglas YC-15 model manufactured by Pacific Miniatures (Pacmin) found on eBay.

Source:
http://www.ebay.com/itm/McDonnell-Douglas-YC-15-Military-Aircraft-Display-Model-/251171727388?pt=LH_DefaultDomain_0&hash=item3a7b00681c

 

[Triton]

McDonnell Douglas YC-15 model manufactured by Pacific Miniatures (Pacmin) found on eBay.

 

[hesham]

The McDonnell Douglas Model D-915P;


http://www.dtic.mil/cgi-bin/GetTRDoc?AD=AD0910069&Location=U2&doc=GetTRDoc.pdf

 

[hesham]

Was this a generic model or General Dynamics AMST design ?.


http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19760012041_1976012041.pdf

 

[Stargazer]

I'd go for a Boeing design on this one, personally.

 

[Apophenia]

Was this a generic model or General Dynamics AMST design ?

Looks more like the General Dynamics design to my eye (based on cockpit glazing and tail shapes). The 'generic' and GD air cushion variant match up fairly well in profile (although the air-cushion type obviously has a longer fuselage)

 

[Triton]

Boeing YC-14 model manufactured by Pacmin found on ebay.

Source:
http://www.ebay.com/itm/Very-Rare-Factory-Desk-Top-Model-Pacific-Miniatures-YC-14-Boeing-Excellent-/121034027652?pt=LH_DefaultDomain_0&hash=item1c2e30b284

 

[Mark Nankivil]

Hi All -

Looks somewhat like the YC-15:

http://www.ebay.com/itm/airline-mcdonnell-douglas-aircraft-painting-memorabilia-/281070425431?pt=LH_DefaultDomain_0&hash=item41711a5557

Enjoy the Day! Mark

 

[Triton]

Nice find, Mark!

 

[flateric]

Boeing YC-14 patent
http://www.google.com/patents/US4447028.pdf

 

[circle-5]

Trio of Boeing C-14 factory models: YC-14 (Camo), C-14A in USAF markings and YKC-14 (KCX) in USMC markings. The KC-14 is equipped with (Qty.2) underwing fuel tanks and (Qty.2) drogue basket refueling pods. U.S. Marines were interested in a STOL KCX tanker, perhaps because a VTOL tanker would have been impractical .

 

[hesham]

Great find Circle-5.

 

[Triton]

Very nice, circle-5. Thank you for sharing!

 

[Pioneer]

I still think it a great pity that the C-14 was not adopted

Regards
Pioneer

 

[jsport]

super, great find Circle -5.

Thank you.

 

[circle-5]

Y'all are welcome!* Any additional info on the Boeing C-14 KCX tanker variant would be appreciated. All I know is that it was studied in response to a mid-1970s USMC requirement for a new tanker to replace their KC-130s.

This observation from an erudite linguist: y'all is a singular. The plural is all y'all.

 

[Triton]

Another gorgeous model. Thanks for sharing, circle-5.

 

[jsport]

wow, ditto the thanks Circle -5
Thank you for sharing again.

 

[flateric]

while sorting old papers...

 

[flateric]

Boeing 953-801 as base model and based on it Air Cushion Landing System aircraft


http://contrails.iit.edu/DigitalCollection/1973/AFFDLTR73-019volume06.pdf

 

[Triton]

Boeing YC-14 model manufactured by Pacmin in silver found on eBay.

URL:
http://www.ebay.com/itm/Vintage-Boeing-YC-14-PacMin-Airplane-Desk-Display-Model-/190839348377?pt=LH_DefaultDomain_0&hash=item2c6ee95c99

Seller's description:

Vintage, original manufacturer desk model of the Boeing YC-14 USAF cargo aircraft. This model was made in 1976 by Pacific Miniatures (PacMin) for Boeing. YC-14 models were made in very small numbers and given to key participants in the program. They were not available to the public. This example has Boeing inventory numbers engraved next to the mounting hole.

Model is in excellent condition, with tiny blemishes consistent with age (see pictures). Nothing is missing, broken or repaired. This is the best YC-14 model I've ever seen. Model is clean, made of resin on a wood & metal base. Approx. dimensions: 16in.L x 16in.W x 10in.H

 

[Triton]

McDonnell Douglas YC-15 model by Pacmin found on eBay.

URL:
http://www.ebay.com/itm/Vintage-McDonnell-Douglas-YC-15-Airplane-Desk-Display-Model-/190839349505?pt=LH_DefaultDomain_0&hash=item2c6ee96101

Seller's description:

Vintage, original manufacturer desk model of the McDonnell Douglas YC-15 USAF cargo aircraft. This model was made in 1975 by Pacific Miniatures (PacMin) for McDonnell Douglas.These YC-15 models were made in very small numbers for key participants in the program and were not available to the public. Model is in good condition, with minor blemishes consistent with age (see pictures). Nothing is missing, broken or repaired. The model is dirty but cleans up well -- I tried it in a small area. Resin model on a wood & metal base. Approx. dimensions: 16in.L x 13in.W x 10in.H.

 

[Triton]

Sold for US $1,226.97.

I wonder if the seller is our circle-5?

 

[hesham]

Artist's impression of Boeing Model 953-815 vector thrust medium STOL transport of the STOL Tactical Aircraft Investigation (STAI) portion of the AMST program.

Source:
Carroll, Richard H et al. STOL Tactical Aircraft Investigation. Volume I. Configuration Definition: Medium STOL Transport with Vectored Thrust/Mechanical Flaps Boeing Aerospace Co. Seattle, WA
May 1973

Abstract:

A configuration for an Advanced Medium STOL Transport (AMST) using vectored thrust for powered lift is defined in detail. Capability to operate from an austere forward airfield of 2000 feet length at the midpoint of 500 nm radius mission with 28,000 lbs. of payload is substantiated by aerodynamic, propulsion, structural, and weights data. The vectored thrust powered lift concept is compared with other powered lift schemes considered for the AMST. A program of continuing research and development in tactical airlift and STOL technology is recommended.

Handle / proxy Url: http://handle.dtic.mil/100.2/AD766637

Also from the same site,


the Model 953-812 drawing,and an Info about Model 953-801,807,809,810 & 811.

 

[hesham]

And;

 

[Cy-27]

The latest post reminded me of some related information on the YC-15 from the late 1970's

I was flicking through an old book (The Encyclopedia of World Air Power - By Bill Gunston), and came across this regarding the YC-15 -

One planned version was a totally self-contained mobile surgical hospital, complete with a casevac helicopter

Considering today`s more civilized nature of nations willing to moreopenly and humanly support and assist one another in times of natural disasters (regardless of political or ideological differences), I envisage this variant being a very useful and busy U.S contribution - had it been put into production and service.

Regards
Pioneer

Please find below a page from a YC-15 brochure from 1977 showing the interior arrangement for the STOL Airborne Surgical Hospital (SASH) version (including Casevac helicopter) proposed by McDonnell Douglas.

I also attached a drawing of the various proposed roles for the C-15 design and product badge from the period.

 

[hesham]

Great find my dear Cy-27.