McDonnell-Douglas ATS, pre-ATF and ATF studies

flateric said:
The St. Louis ATF effort was led by a conservative retired USAF fighter general who had rejected a stealth-driven approach in favour of what programme officials called a "super F-15." McDonnell Douglas placed fifth, behind Boeing.

Sweetman, Bill
Interavia Business & Technology
Friday, November 1 2002
Click to expand...
Ironically, today I would describe the F-22 as a "super F-15": more maneuverable, faster, better radar, etc. Oh, and stealthy.
 
Yes, in this very topic. Its the SF-1107.

sf-1107-png.514016

https://www.secretprojects.co.uk/th...s-ats-pre-atf-and-atf-studies.399/post-238273
xd4c-119538-1-apr-81-jpg.82191

https://www.secretprojects.co.uk/th...as-ats-pre-atf-and-atf-studies.399/post-69229
l-86-10626-1-jpg.115709

https://www.secretprojects.co.uk/th...s-ats-pre-atf-and-atf-studies.399/post-103935
 
McDonnell-Douglas view of an ATF requirement, 1981.
Speed
sustained supersonic speed ( M1.8) over enemy territory for survivability and, enhanced air combat effectiveness; maximum speed of Mach 2.5 for intercept and chase

Maneuverability
sustained turning performance equal to threat
18-20°/sec turn rate, MO.6, 10K ft
5g M 0.9/30K ft
6g M1.6/30K ft
Maximum attainable turn rate given sustained capability

Agility and Control Enhancement (ACE)
flight/fire control coupling, direct force modes, maneuver enhancement and control, tailored handling qualities and energy management for improved firing opportunities.

Acceleration
equivalent or better than the threat throughout the envelope
M0.8-1.6, 30K ft: 50 sec, 40 sec desired
+ 10% combat reserve thrust, 10 seconds
STOL
1500 feet total required runway length

Observables
less than 0.5m2 radar cross section (frontal aspect)
infrared reduction to eliminate head-on missile shot; degrade IR detection
visual reduction (size, contrast, contrails,...)
electromagnetic emission control; passive fire control

Sortie Rate and Availability
four to five sorties per day under surge conditions
80 percent readiness
3.0 Mean Flight Hours Between Failure (MFHBF) in service

Combat Persistence
25% of internal fuel, combat allowance, or 2 minutes, maximum A/B M0.6 10K, or

Supersonic Endurance
10 minutes at combat cruise speed or 5 minutes maximum A/B at combat conditions

Range
300 nm supersonic radius, internal fuel, M1.8 optimum conditions, with combat
500 nm subsonic radius, internal fuel, optimum subsonic cruise, with combat
300 nm subsonic radius, internal fuel and one hour loiter, with combat
1200 nm subsonic radius, external fuel, with combat 3200 nm ferry range

Crew
single place with two place variant
crew station and escape systems compatible with speed and NBC environment

Structural Design
9g design limit load factor
18 fps sink rate, rough field, taxi and tow capability

Fire Control
90 nm detection range, 1 m2 target;
multitarget, multishot integral offensive/defensive counter-measures
forward aspect passive angle/range measurement
IFFN capability

Firepower
four long range intercept missiles
four medium range missiles with CIC
capability (carriage for eight)
25 nm gun, 500 rounds; coupled fire control
Click to expand...
Multirole Fighter.png

Kozlowski, D., "Fighter Issues - 2000," SAE Technical Paper 811096, 1981, https://doi.org/10.4271/811096.
 

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