'The Sea Dragon avionics complex integrated a Sea Snake coherent radar (claimed to be superior to the AN/APS-137 by a factor of between 25 and 30 per cent) with a MAD, a two-channel IR TV system, and a Hydrolocator. The aircraft used an Argon digital onboard computer and had a new display and control system compatible with the 72 sonobuoys which can be carried in an optional centreline pod. The buoys include passive and active, directional and non-directional buoys which are claimed to be superior to the American SSQ-53B, SSQ-75 and SSQ-77A buoys.....range 2,160 nm (4000 km; 2,485 miles), or 3,777 nm (7000 km, 4,350 miles) with inflight-refuelling"
http://www.aeronautics.ru/nws001/su32fn001.htm
Some nice pics.
http://www.globalaircraft.org/planes/su-34_fullback.pl
"The Su-35 with advanced weapon system, stronger airframe and canards takes the max-takeoff weight to 34,000 kg (75,000 lbs). The normal takeoff weight of the much larger Su-32"FN" is 42,000 kg (92,600 lbs) with a max-takeoff weight of 44,360 kg (98,000 lbs).
Su-32"FN" has been characterized by Sukhoi as a "specialized strike fighter" and "a reliable guardian of sea borders". It would be, according to Western terminology, a "missionized reconnaissance-maritime-strike platform" intended for around the clock operations to search for, detect, classify, and then destroy, if necessary, waterborne or submarine targets.
It has been optimized for long-range patrol missions with multiple air refuelings extending to ten to fourteen hours. Once you enter the cabin from the built in stairs, you close up the entry area to access a small crew kitchen with a refrigerator and food-heating unit, a sewage disposal "john", and a first aid station that could serve as a place to laydown and sleep.
The Su-32"FN" is fitted with the "Sea Snake" avionics suite optimized for surface search, anti-surface warfare, mine-detection, reconnaissance, and anti-submarine warfare. The active radar is designed to ensure detection of waterborne targets and submarine wake trails within a dispersion area of more than 3,000 sq.-meters from 150 km range at high altitude. The "Sea Snake" is also capable of detecting airborne targets, including small ones, low over the sea out to 200 to 250 kilometers.
To detect submarines, 72 passive sonobouys are allocated in a wide range of frequencies with active directional hydroacoustical buoys and explosive wave generators. Performance characteristics of the Sukhoi sonobouys exceeds American products, according to a Sukhoi representative.
There is also a magnetic anomaly detector (MAD is contained in the rear stinger, which also contains a rear facing radar) employed with the sonobouys while the radar can detect small periscopes just breaking the wave tops."
http://www.sci.fi/~fta/Su-30.htm
"A navalized version intended for the Russian Navy features sea-surface surveillance, submarine reconnaissance, mine detection and capabilities facilitating attacks against enemy surface ships."
http://www.deagel.com/pandora/su-32_pm00428001.aspx
All in all a very interesting aircraft.