Why Russia Fears Sweden’s Deadly Submarines

For decades, submarines came in two discrete flavors: traditional diesel-electric submarines that need to surface every day or two to recharge their noisy, air-breathing diesel engines, and nuclear-powered submarines that could quietly hum along under the sea at relatively high speeds for months at a time thanks to their nuclear reactors.

The downside to the nuclear-powered variety, of course, is that they cost many times the price of a comparable diesel submarines and require nuclear propulsion technology, which may not be worth the trouble for a country only interested in defending its coastal waters. A diesel submarine may also run more quietly than a nuclear submarine by turning off its engines and running on batteries—but only for a very short amount of time. Still, there remains a performance gap in stealth and endurance that many countries would like to bridge at an affordable price.

One such country was Sweden, which happens to be in a busy neighborhood opposite to Russian naval bases on the Baltic Sea. Though Sweden is not a member of NATO, Moscow has made clear it might take measures to ‘eliminate the threat,’ as Putin put it, if Stockholm decides to join or support the alliance. After a Soviet Whiskey-class submarine ran aground just six miles away from a Swedish naval base in 1981, Swedish ships opened fire on suspected Soviet submarines on several occasions throughout the rest of the 1980s. More recently, Russia has run an exercise simulating a nuclear attack on Sweden and likely infiltrated Swedish territorial waters with least one submarine in 2014. . .

The Swedish firm has unveiled concept art depicting a submarine with a ‘chinned’ sail, X-shaped tail fins for greater maneuverability in rocky Baltic waters, and four 533-millimeter torpedo tubes can fire both heavyweight torpedoes, back up by two 400-millimeter tubes, all of which would use wire-guided torpedoes. The vessel’s four Stirling engines apparently allow allowing for higher sustainable underwater cruising speed of 6 to 10 knots. . .

Sweden’s two A26s should be completed between 2022 and 2024, at which point it will be possible to gauge whether they can meet their ambitious performance parameters. In general, advancements to AIP submarines are allowing countries across the globe to acquire capable short and medium-range submarines at an affordable price. (Read more from “Why Russia Fears Sweden’s Deadly Submarines” HERE)

Follow Joe Miller on Twitter HERE and Facebook HERE