Unbuilt ASW/MARPAT versions of airliners?

[Jemiba]

Interesting proposal, thanks for sharing !
The nose reminds me very much on the Nimrod.

 

[fightingirish]

Canadair CL-280 - * Boeing LRPA (B707/B720 Long-Range Patrol Aircraft), 1974
Canadair CL-281 - Lockheed LRPA (P-3C Long-Range Patrol Aircraft), 1974
Became Canadian Forces Lockheed CP-140 Aurora patrol aircraft

Source: Interavia Germany, February 1974, page 114
Edit:

https://twitter.com/x/status/1280108500450971648

View: https://twitter.com/BurkhardDomke/status/1280108500450971648?

 

[flateric]

...

 

[kitnut617]

Douglas factory desk model of the MDC DC-10 LRPA (Long Range Patrol Aircraft / Canadian Air Force).

Now I know what I'll do with my 1/72 DC-10 kit

 

[codeone]

Lockheed P-7 Concept Model - Pacmin unfinished

http://r.ebay.com/f74486

Background: The P-7 was designed as an enlarged version of the original P-3C. The fuselage, of similar cross-section to that of the P-3, was lengthened by 2.40 m (8 ft), and the wingspan by 2.10 m (7 ft). The wing center section was increased in length, which moved the engines farther away from the fuselage to reduce noise levels in the cabin. The tailplane was increased by about 25% in area, but shortened in height compared to that of the P-3. The P-7A was to be powered by four General Electric T407-GE-400 turboprops with 5-blade propellers.

 

[fightingirish]

Found via @Tony Osborne at Twitter.
Original source is the AviationWeek archive

 

[overscan (PaulMM)]

A beautiful model of the McDonnell-Douglas P-9D ASW derivative of the MD-87 propfan.

Gallery

Yours for just $1650...

 

[hesham]

From Air Force 1997/7.

 

[Hobbes]

Tip: if you add the image caption as text to your post, it becomes searchable. As long as we don't have text recognition that works inside images, people looking for Il-114 info won't find your post...

 

[EwenS]

BAe P.132 based on the ATP/Jetstream 61. From this very site

https://www.secretprojects.co.uk/threads/military-bae-atp.1908/

 

[taildragger]

A beautiful model of the McDonnell-Douglas P-9D ASW derivative of the MD-87 propfan.

Gallery

Yours for just $1650...

I wonder what the rationale was for the "D" suffix. It seems an odd touch given that there were no P-9A, B or Cs built and P-9 was probably not an officially allocated DoD designation anyway (just guessing). Perhaps it was some nostalgic marketing guy's homage to the D for Douglas designator in the old pre-1961 USN designation system.

 

[TomS]

A beautiful model of the McDonnell-Douglas P-9D ASW derivative of the MD-87 propfan.

Gallery

Yours for just $1650...

I wonder what the rationale was for the "D" suffix. It seems an odd touch given that there were no P-9A, B or Cs built and P-9 was probably not an officially allocated DoD designation anyway (just guessing). Perhaps it was some nostalgic marketing guy's homage to the D for Douglas designator in the old pre-1961 USN designation system.

I think they were treating it as a continuation of the C-9 (military DC-9), which had the C-9A aeromedical evacuation aircraft, the C-9B cargo/passenger transports, and the VC-9C VIP transports. That's not quite how the system should work -- it would have had to be the PC-9D. In practice, the MD-90 was enough different from the DC-9 that I'm fairly sure the base designation would have changed and it would have been the P-8A or possibly P-9A.

 

[hesham]

From Air Force 2000/2.

 

[Jason Dykstra (Wyvern)]

With Il-114 production starting up again, on the new and improved -300 variant, it is likely that a Maritime Patrol variant will enter service, in an effort to help replace Russia's ageing maritime patrol and intelligence gathering fleet, namely, the Il-20, Il-22 and Il-38 (themselves based off of the Il-18 airliner). A model of what it would look like in service was displayed at MAKS in 2019.

Russia's Reborn Il-114 Transport Aircraft Eyed For Specialized Military Roles

Various Russian electronic warfare and maritime patrol aircraft need replacing, and the Il-114-300 might fit the bill.

www.thedrive.com

 

[Jason Dykstra (Wyvern)]

Fellow forum member Triton made a thread about the Tu-204P, an ASW variant of the Tu-204, that was intended to replace the Il-38.

https://www.secretprojects.co.uk/threads/tupolev-tu-204p.25751/

 

[Jason Dykstra (Wyvern)]

Maritime patrol variants of the BAE ATP are discussed in the thread below

https://www.secretprojects.co.uk/threads/military-bae-atp.1908/

 

[Jason Dykstra (Wyvern)]

Saab offered their Swordfish package on a number of platforms, including the Global 6000 business jet from Bombardier. It boasted a range of 4,400nm, a maximum cruise speed of 450 knots and a long-range cruise speed of 360 knots. It featured a 360 degree AESA radar, a Magnetic Anomaly Detector, SATCOM and data links, four hardpoints for weapons, a Multi-Statics acoustic system and various IR and EO systems, all in HD. Saab believed that the system could compete against types like the Boeing P-8 Poseidon and Kawasaki P-1, and intended to market it mostly Southeast Asian countries who might not be able to acquire the P-8, either due to cost or political factors. It was offered to the South Koreans as an alternative to the P-8, however, they procured the Poseidon instead. The platform was able to carry a variety of weapons loads, including MU90 torpedoes and RBS 15EF anti-ship missiles. The Royal Aeronautical Society's article about the type also states that it can be used as a SAR platform.

“Saab understands every mission that the modern MPA will be called upon to perform and we know how to deliver success. That is why we carefully selected the Bombardier Global 6000 aircraft for our airborne surveillance solutions. It brings a perfect balance of operational performance and cost, and is ideally suited to demanding, multi-level MPA operations.

Although an MPA has to be able to handle many different missions, airborne anti-submarine warfare remains the core competence of any credible MPA. General Dynamic Mission Systems-Canada heritage as the premier supplier of acoustic processors to aircraft means that Swordfish can locate, track and classify all submarine types,” says Lars Tossman, Head of Airborne Surveillance at Saab.

“The Swordfish initiative and the Global 6000 aircraft are truly a perfect match,” says Stéphane Leroy, Vice President of Specialized Aircraft at Bombardier.

“The redundancy built into the baseline Global 6000 aircraft – such as the four variable frequency generators as well as an auxiliary power unit and RAM air turbine generator – ensures safety and reliability on MPA missions. Other features, such as the revolutionary Bombardier Vision flight deck, reduce pilot workload for a safer, more efficient experience and the head-up display and MultiScan weather radar provide comfort, control and enhanced situational awareness for pilots.

Most importantly, its advanced and flexible wing design contributes to a smooth ride, reducing the effects of turbulence on both the crew and on-board equipment. These features are very important when one considers the Swordfish can stay on station for over 11 hours at 200 nautical miles from base.”

I am unsure as to whether it is still offered by Saab as part of their portfolio. They did tout the fact that it is interoperable with the GlobalEye.

Sources:

Swordfish Multi-Role Maritime Patrol Aircraft (MPA)

Swedish company Saab introduced the Swordfish long-range, multi-role maritime patrol aircraft (MPA) mission system in February 2016.

www.naval-technology.com

Saab puts marketing effort for Swordfish maritime plane on hiatus

Why is Saab stepping away from its sub-hunting aircraft concept?

www.defensenews.com

A look at Saab’s Swordfish maritime patrol aircraft

ukdefencejournal.org.uk

Enter the Swordfish - Royal Aeronautical Society

SAAB is actively marketing its new business jet-sized Swordfish multi-role maritime patrol aircraft which it hopes will offer a competitive alternative to larger platforms. BILL READ FRAeS reports from Linkoping in Sweden.

www.aerosociety.com

Defense World

View News at Defense World

www.defenseworld.net

 

[Grey Havoc]

I wouldn't be surprised if the system is in service or otherwise on order with Sweden, in light of ongoing events.

 

[Jason Dykstra (Wyvern)]

The same system has also been offered on the Q400/DHC-8. I assume this would be catered more towards the EEZ protection role, while the Global 6000 variant would be assigned to the long-range patrol role, therefore complementing each other in their respective roles.

 

[Jason Dykstra (Wyvern)]

Saab had previously offered the Swordfish package on their Saab 2000. The aircraft was offered to India and a few other nations. I never fully understood whether the aircraft would be new build or converted from second hand aircraft, although I always believed it to be the latter.

Sources:

Saab's 'special mission' aircraft searches for customers

Saab aerospace are re-modifying their turbo-prop aircraft from passenger planes to special mission aircraft.

www.bbc.com

FARNBOROUGH: Saab 2000 offered as Swordfish MPA

The Saab 2000 regional turboprop could be adapted for maritime patrol applications under a new proposal by the Swedish airframer. Eyeing potential...

www.flightglobal.com

Saab 2000 Maritime patrol Aircraft Offered to India - Defense Update:

After failing the MMRCA competition, Saab is now aiming at another Indian program Medium range Maritime recce (MRMR).

defense-update.com

Datasheet - Saab 2000 MPA

Datasheet - Saab 2000 MPA

www.yumpu.com

View: https://www.youtube.com/watch?v=l5rptoqeIsw&ab_channel=AsianDefence

 

[flateric]

Boeing 757 LRAACA model

 

[publiusr]

View: https://twitter.com/BurkhardDomke/status/1280108500450971648?

Beautiful

I could see the 747 airborne laser more on a tri-jet, however.

Imagine high bypass engines mounted perhaps on top of an older tri-Jet…allowing the tail engine to be removed…with that nacelle to have the laser optics and keeping the nose simpler. The guts would still be in the fuselage…

The top mount wings allow access to in-improved fields and optics slid out more easily in case laser aircraft are looked at again.

 

[flateric]

Lockheed P-7A LRAACA cockpit art

 

[flateric]

1974 BOEING 707-MP LONG RANGE MARITIME PATROL AIRCRAFT FOR IRAN Publication | #2016267429

An original 1974 BOEING 707 - MP Long Range Maritime Patrol Aircraft for Iran Technical Summary Conference Presentation Publication from the COLD WAR Era. Multiple purchases and combined shipping enco

www.worthpoint.com

 

[Rickshaw]

Did Vickers ever propose a maritime patrol version of their vanguard?

 

[Jason Dykstra (Wyvern)]

Did Vickers ever propose a maritime patrol version of their vanguard?

Yes they did, proposing variants to both the RAF and Indian Airforce. Chris Gibson's "Nimrods Genesis" is the go to source for it.

 

[flateric]

...

 

[Pioneer]

1974 BOEING 707-MP LONG RANGE MARITIME PATROL AIRCRAFT FOR IRAN Publication | #2016267429

An original 1974 BOEING 707 - MP Long Range Maritime Patrol Aircraft for Iran Technical Summary Conference Presentation Publication from the COLD WAR Era. Multiple purchases and combined shipping enco

www.worthpoint.com

That looks like gold my dear flateric
Were you the lucky one who purchased it?


Regards
PIoneer

 

[flateric]

no

 

[Rickshaw]

Did Vickers ever propose a maritime patrol version of their vanguard?

Yes they did, proposing variants to both the RAF and Indian Airforce. Chris Gibson's "Nimrods Genesis" is the go to source for it.

Are their any pictures of such a beast available? The book is beyond what my wallet can stand...

 

[hesham]

From Aviation magazine 1990.

 

[CJGibson]

From Aviation Week 1977 1-9 a Boeing derivative of the 727, still 3 engined, but
with the tail side mounted engines moved to pods under the wings. Any explanation
why ? Lower noise level in the cabin, for a better acoustic environment ? ???

Yesterday in Kew I found this in a file about selling Nimrods to Canada. It's a Boeing proposal for a maritime patrol 727 with a completely reconfigured, but still rear-engined propulsion system. Anyone shed any light on this?

Chris

Dual Cycle Concept.. The dual cycle concept, it is claimed, is directed at emphasized endurance. In simplest terms the present three JT8-D-1 turbojets would be retained. The two side mounted engines become hub-installed, direct-coupled gas generators for two large cruise fans side-mounted in the present side engine positions. The dorsal mounted JT8-D-1 would become a remote generator used to tip drive the cruise fans and provide additional thrust for take-off, etc but would be shut down at times. There is no provision for closing and fairing the dorsal intake during cruise and patrol; the engine would be allowed to windmill and the intake air bled overboard through ports along the fin base. Although complicated and no more than a paper proposal. this concept is not as far-fetched as might at first be thought and would have the support of considerable practical GE/Ryan experience of large, tip-driven fans (Ryan XV5-A) and the very detailed investigations that GE have carried out in conneetion with numerous (unpublicized) Lockheed Marietta proposals employing large tip-driven fans for transport application.

 

[taildragger]

...

Is this logo something generated by Lockheed Martin or is it fan art?

 

[flateric]

...

Is this logo something generated by Lockheed Martin or is it fan art?

a).

 

[Jemiba]

As that Boeing proposal pooped up again here ...
Tried a reconstruction of its 3-view several years ago, without knowledge of the propulsion system, described by Chris. The nacelles may even have needed a larger diameter, I think now, and then probably longer stroke landing gear legs, which I just took over from the standard B727 back then. Ground clearance would have been a close call already in this depiction. As stated on the drawing, source grade 2 at best.

 

[CJGibson]

Nice work Jemiba,

The proposal as described retained rear engines.

I wondered if the tipfan system was related to one of the proposals in The Admiralty and AEW.

Chris

 

[GTX]

Canada's Multi-Mission Aircraft Team

defense.bombardier.com

 

[A Tentative Fleet Plan]

What stores are on the most outboard pylons?

 

[TomS]

SAR kits, I assume. Pods with life rafts or overland survival supplies.

 

[Apophenia]

SAR kits, I assume. Pods with life rafts or overland survival supplies.

Yep. A variant of Irvin's SKAD (Survival Kit Air Droppable).

​