#McDonnell Douglas MD-XX

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mossy creek
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The MD-XX was a trijet design which was proposed early into the development of the MD-12. Essentially an extended MD-11 with a new tail, avionics, etc., it would have supplanted it as MD's primary widebody, designed to compete with the A340 and older 747s. The design was eventually shelved in favour of the double-decker design which became the MD-12, before the whole project was cancelled in the late 1990s.

There are two main variants of this aircraft: the MD-XX Stretch and the MD-XX LR. Both aircraft would have uprated engines, a new tail which used composites in its construction, a larger casing for the No. 2 engine, larger wings and landing gear, and had freighter variants.

Specifications:

General characteristics

Crew: 2
Length: 71.4 m (234 ft 4 in) [Stretch]/61.6 m (202 ft 2 in) [LR]
Wingspan: 64.7 m (212 ft 3 in)
Height: 19.6 m (64 ft 5 in)
Empty weight: 172,819 kg (381,000lb)
Gross weight: 363,781 kg (802,000 lb) [MTOW]
Powerplant: 3x General Electric CF6-80E1/Pratt & Whitney PW4168/Rolls-Royce Trent 700 (approx. 65,000 lbs)

Performance

Maximum speed: 924 km/h (574 mph, 499 kn, Mach 0.88) at 33,000 ft
Cruise speed: 902 km/h (561 mph, 487 kn, Mach 0.85)
Landing speed: 274 km/h (174 mph; 148 kn)
Range: 5,740 nmi [Stretch]/7,350 nmi [LR] (10,640/13,610 km)
Service ceiling: approx. 43,000 ft (13,100 m)

Capacity
MD-XX Stretch: 375 pax (18F/70B/287E with 60/38/32 in. of pitch)
MD-XX LR: 309 pax (18F/58B/233E with 60/38/32 in. of pitch)
MD-XX Freighter: approx. 66 LD3 containers (44 96x125 in containers) [Stretch]/approx. 52 LD3 containers (35 96x125 in containers)

Source: https://www.secretprojects.co.uk/threads/mcdonnell-douglas-md-12.1061/

MD-12early.jpg
Secret Projects Forum
McDonnell Douglas MD-12

I was really hoping to see a 3-engine MD-12. IIRC it was suppose to be powered by 3 90,000lb thrust class engines.

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Scale models of the two MD-XX variants

fls24.jpg
near elk
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MD-11neo

compact ferry
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md12 if it was just md11

thorn fossil
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real

broken charm
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I was going to suggest this one lol (now I have to research to suggest the ATMR airliner 🗿)

scarlet prawn
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BIG TRIJET

meager coral
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And we meet again deado

shell sail
mossy creek
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not the trijet

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I personally believe the MD-XX can be added as its own thing, seperate from the MD-11 and MD-12

long canopy
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I wonder what would the landing gear look like since it's much heavier

mossy creek
long canopy
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Yeah it seem right

silent forge
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Type it

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Sandhawk

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I’m watching you

mossy creek
long canopy
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It seem the horizontal stabilizer design was larger

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maybe trying to solve MD-11 bounce problem

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maybe

neon blaze
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Aeronautica Suggestions:

mild bolt
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not enough trijets

marsh schooner
scarlet prawn
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Shredding facts

spice cloud
neon blaze
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Thank you

mild bolt
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we need this asap

lofty fulcrum