Tag Archives: ASW

Bering Patrol

Your author has been distracted since late March, but here’s an effort to regain (and possibly maintain) focus….

On April 9, the U.S. Air Force intercepted two Russian Il-38 May ASW aircraft in the Bering Sea north of the Aleutians. The Russian planes were in the Alaska ADIZ but didn’t enter sovereign U.S. or Canadian airspace.

Two random Il-38Ns

Two random Il-38Ns

According to the Russian Pacific Fleet’s press-service, the Il-38s were conducting a “flight-tactical exercise” to their max combat radius — about 2,200 km (1,188 nm).

The precise track is known only to the Russians and to NORAD. A full-range flight from their base at Yelizovo could have taken them to the Bering Strait and back, or perhaps along the Aleutian chain. Or maybe somewhere in between. The distances are great enough, however, to limit any search or loitering time.

The aircraft practiced ASW with radar and acoustic sensors and notional delivery of on-board weapons, according to the report. MiG-31 Foxhound interceptors provided air cover. An-12 Cub and An-26 Curl transports flew in a surface recce role.

“Special attention” was given to coordinating the activity of the Il-38s with the Marshal Krylov and tactical ship groups. The Marshal Krylov is an old missile range instrumentation vessel reportedly now serving as the Pacific Fleet’s command ship.

The Pacific Fleet and Il-38 aircraft have been wrapping up the winter training period with some fairly vigorous exercises.

The Russian Navy and its Il-38s are obviously interested in U.S. military systems in Alaska and how they react to ingressing aircraft. They’re also interested in U.S. subs operating in the Bering, whether headed for the Arctic or possibly tracking Russian subs based on Kamchatka.

Flying to max radius (for Il-38s which have typically been used close to home) is most curious. Perhaps it’s sensor system testing. Maybe it was the chance to train with Marshal Krylov as a tactical controller. Why not rebase and fly from Anadyr?

Russian Naval Aviation may operate as few as 20 Il-38s at this point. The Yelizovo-based 317th Mixed Aviation Regiment has an ASW squadron of probably 8 Il-38 and 4 Il-38N aircraft. The Northern Fleet probably has another 8 airframes.

All Il-38s are likely 40 or more years old, but perhaps seven were modernized to Il-38N during the 2010s. In 2017, the chief of Naval Aviation claimed to have 30 Il-38s that would be upgraded to Il-38N by 2025.

The Il-38N is the old airframe plus the new Novella P-38 system to replace the original Berkut-38. That sensor suite mounted rather awkwardly atop the fuselage increases the range of the plane’s air and surface target detection and tracking. More enthusiastic reports say it can find submarines by magnetic, wake, and IR detection, and is four times more effective in target search.

Talk of a new medium-range ASW aircraft is heard from time to time. The Beriyev-designed A-40 Albatros amphibian was once a possibility. Now the Il-114 is often mentioned. However, no clear move to replace the aged Il-38 inventory is evident.

Bears Leaving Hibernation

RAF Typhoon intercepts Bear F

RAF Typhoon intercepts Bear F

Russia’s Tu-142 / Bear F ASW aircraft are waking up at the end of the winter training period. The Russian media highlighted four evolutions recently.

We probably haven’t seen a surge in long-range naval surveillance flights like this in some time. Possibly not since Soviet times. 

On March 7, two Bear F flew a patrol into the Atlantic. A Russian Northern Fleet spokesman said the aircraft were refueled over the southern Norwegian Sea during the 15-hour flight. The aircraft trained over waters near Spain and Portugal before returning home.

On March 6, three Pacific Fleet Bear F over the Sea of Japan practiced locating, tracking,  and attacking a notional enemy submarine.

On March 4, at least one (probably more) Bear F aircraft was refueled over the Black Sea. TVZvezda provided this video. Northern Fleet air crews trained at the Russian Navy’s Combat Training and Combat Employment Center in Yeysk during the week.

On 26-27 February, two Bear F flew a mission south of the Faeroes and Iceland, possibly to gain contact on U.S. or British subs enroute to ICEX 2020.

At present, there are likely about 24 Tu-142 aircraft in the Russian Naval Aviation inventory. One air group or squadron of 12 each (possibly as many as 15) in the Northern and Pacific Fleets. The former at Kipelovo-Fedotovo and the latter at Mongokhto.

Tu-142 Bear F bases

In the late 1960s, the Tupolev design bureau developed the Tu-142 on the blueprint of the Tu-95 / Bear bomber with a range of roughly 10,000 km.

The Bear F has carried various ASW systems including surface search radars, airborne acoustic detectors, Korshun search-targeting system, magnetic anomaly detectors, IR direction finders, gas analyzers, and Korshun-K. The Korshun-K system is found on the Tu-142MK. The Tu-142MZ is distinguished by its newer NK-12MP engines.

The Bear F, while aged in most cases, has been a reliable aircraft. It’s suffered three known crashes, the last in 2009 occurred in the Strait of Tatary.

The current fleet was produced mainly in the late 1970s and 1980s. A number, perhaps most, of them received capital repairs in the late 2000s and 2010s.

The oldest Russian Bear F are likely 40-45 years old. The youngest perhaps 30. But relatively restricted flying hours have helped keep them in the air. Flying them hard, however, would stress the limits of the force. 

The Russian Navy is reportedly thinking about acquiring civilian Tu-204 or Tu-214 airliners for conversion into new ASW aircraft but this would be expensive and hasn’t advanced beyond the requirements stage yet.