Osa vs Rihtniemi

Overview

The Osa and the Rihtniemi are both Patrol vessel classes.

Displacement is 209 tons for the Osa vs 110 tons for the Rihtniemi. The Osa reaches 42 knots vs 15 knots for the Rihtniemi. The Osa carries a crew of 28 vs 20 for the Rihtniemi.

The Osa was commissioned in 1960, 3 years after the Rihtniemi (1957).

Osa

Ex-USSR missile boat, introduced in 1960, reaches speeds of 42 knots, with over 400 units built.
Origin 🇨🇳 Ex-USSR
Category Patrol vessel
Type Missile boat
Manufacturer Vostochnaya Verf
Year introduced 1960
Number built 400 units
Estimated unit price NA
Finnish patrol boat Rihtniemi, introduced in 1957, has a displacement of 110 tons and a crew of 20.
Origin 🇫🇮 Finland
Category Patrol vessel
Type Patrol boat
Manufacturer --
Year introduced 1957
Number built NA
Estimated unit price NA

Osa

Displacement 209 tons ◉
Maximum speed 42.0 knots ◉
Range 1,800 nm at 500 knots
Length 38.6 m ◉
Beam 7.6 m ◉
Crew 28 ◉
Propulsion 3 × 4,000 hp (3.0 MW) M-503G diesel engines (205) or 3 × 5,000 hp (3.7 MW) M-504B diesel engines (205U onwards); 3 shafts
Armament
  • 2 × AK-230 twin 30 mm CIWS (2,000 rounds)
  • 4 × P-15 Termit (SS-N-2 Styx) anti-ship missiles
Displacement 110 tons ◉
Maximum speed 15.0 knots ◉
Range NA
Length 31.1 m ◉
Beam 5.7 m ◉
Crew 20 ◉
Propulsion 51, 52: 2 Mercedes-Benz Diesel; 1,044 kW 53, 54, 55: 2 Mercedes-Benz Diesel; 1,864 kW
Armament

1 × 40 mm Bofors 1 × 20 mm Madsen 1 × Squid ASW mortar

Performance Radar Chart

Frequently Asked Questions

Which has greater displacement, the Osa-class or Rihtniemi-class?
The Osa-class has greater displacement at 209 tons compared to the Rihtniemi-class's 110 tons.
Which is faster, the Osa-class or Rihtniemi-class?
The Osa-class is faster with a maximum speed of 42 knots compared to the Rihtniemi-class's 15 knots.
Which has longer range, the Osa-class or Rihtniemi-class?
The Osa-class has a longer range at 1,800 nautical miles compared to the Rihtniemi-class's 0 nautical miles.
Which is longer, the Osa-class or Rihtniemi-class?
The Osa-class is longer at 38.6 meters compared to the Rihtniemi-class's 31.1 meters.
How many crew members do the Osa-class and Rihtniemi-class have?
The Osa-class has a larger crew complement of 28 compared to the Rihtniemi-class's 20 crew members.