FrangibleCover
commented
6 months ago Forward-swept wings create significant structural challenges for aircraft, I think it's unlikely that the Su-47 could match the Su-27's payload under the wings. It's possible that it would be unable to carry anything, indeed.
tbrandon517
DB Selector
DB3K
Baseline
SU27
Hypothetical
Yes
Name
Su47 "Firkin" Berkut
Country
Russia
Service
RuAF
In Commission
1997 first flight, Never entered service
Number in Service
1 Prototype
Length (m)
22.6
Wingspan (m)
16.7
Height (m)
6.4
Empty Weight (kg)
18400? same as SU35?
Maximum Takeoff Weight (MTOW) (kg)
34000
Payload Weight (kg)
Same as SU27?
Crew
1
Propulsion
2 × Soloviev D-30F11 Later 2 x Saturn AL-41F
Rate of Climb (ft/min)
765ft/s
Service Ceiling (ft)
59000
Military/Afterburner Speed (kt)
Mach 2+ design (though limited to 1060kts in practice)
Cruise Speed (kt)
same as SU27
Supercruise
No
Ferry Range (nm)
1,800
Endurance (min)
same as SU27
Takeoff / Landing Distance (m)
same as SU27
Fuel Capacity (kg)
same as SU27
Sensors
*No actual installed sensors, Presumed to have sensor suite equal to the best available to Russia at the time ie: on Mig 1.44 but with provisions for multirole function
Mounts
1x Internal weapons bay 1x (provisional) DECM, 90s era. Flares/Chaff
Loadout Options
No actual loadouts hypothetical only No actual external mounting pylons were installed but likely would have been as the internal weapons bay was very small *Loadouts based off SU27 for reference
Ferry 2x DropTanks
Internal only (stealth) 2x R77 2x R33
Internal + external 2x R77 + 4x R77+ 2x R73 Air superiority 2x R77 + 2x Drop tanks + 2xR77 + 2x R73 Air superiority long range 2x R33 + 4x R77 + 2x R73 Mixed Air superiority 2x R33 + 2x Drop tanks + 2xR77 + 2x R73 Mixed Air superiority long range 2x R33 + 4x R33 + 2x R73 Standoff Air superiority 2x R33 + 2x Drop tanks + 2xR77 + 2x R73 Standoff Air superiority long range
4x KAB500KR + 8x KAB500KR + 2x R73 Ground attack TV Guided 4x KAB500L + 8x KAB500L + 2x R73 Ground attack Laser Guided 4x KAB500KR + 2x Drop Tanks + 2x R73 Ground attack TV Guided Long range 4x KAB500L + 2x Drop Tanks + 2x R73 Ground attack Laser Guided Long range 1x KAB1500KR + 8x KAB500KR + 2x R73 Mixed Ground Attack TV Guided 1x KAB1500L + 8x KAB500L + 2x R73 Mixed Ground Attack Laser Guided 1x KAB1500KR + 2x KAB1500KR Heavy Ground Attack TV Guided 1x KAB1500L + 2x KAB1500L Heavy Ground Attack Laser Guided
2x KH29 + 4xKH29 + 2x R73 Close Air support 2x R77 + 2x KH31P + 2x R73 SEAD 2x R77 + 2x KH31 + 2x R73 Maritime Strike Supersonic 2x R77 + 2x KH59 + 2x R73 Maritime Strike Subsonic
Comms/Datalinks
Same as SU27?
Aircraft Codes
Supermanouverability, Fly-by-Wire, Helmet Mounted Sight / Display (HMS/HMD)
Comments
the Su47 was conceived as a technical demonstrator to prove new aircraft design and manufacturing concepts by the Sukhoi design bureau and was never intended to enter actual service, hence it's combat systems and weapons loadouts are entirely hypothetical with what would have been available at the time.
The engines used on this aircraft were fully 3D thrust vector capable and its forward swept wings give it unparallel agility (agility 5.5?)
while it was reported to have at least some limited stealth features such as divertless supersonic intakes, composite airframe and an internal weapons bay as well as unconfirmed reports of RAM being used. This should at least make this aircraft in the LO range.
Sources
https://en.wikipedia.org/wiki/Sukhoi_Su-47 https://www.globalsecurity.org/military/world/russia/su-47.htm https://www.airforce-technology.com/projects/s37/