Błotniak (

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

for "

Harrier Harrier may refer to: Animals * Harrier (bird), several species of birds * Harrier (dog) Media * Harrier Comics, a defunct British publisher * Space Harrier, a video game series Military * Harrier jump jet, an overview of the Harrier family: ...

") is a one-man wet cabin underwater craft designed in

Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...

in 1978. It was based in the

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, s ...

research centre in

Gdynia Gdynia ( ; ; german: Gdingen (currently), (1939–1945); csb, Gdiniô, , , ) is a city in northern Poland and a seaport on the Baltic Sea coast. With a population of 243,918, it is the 12th-largest city in Poland and the second-largest in th ...

(commonly called

Formoza , (Military Unit Formoza) (2007-2011 ) (Naval Special Operations Unit), previous names: (Polish Navy Special Operations Sections), (Special Frogmen Groups). History JWF is now part of Wojska Specjalne (1975-2008 - part of the Polish Navy) ...

Technical data

Specification

*propulsion: **two batteries of compressed air accumulators in the tubes on the sides of the craft **one set of ducted

contra-rotating propellers Aircraft equipped with contra-rotating propellers, also referred to as CRP, coaxial contra-rotating propellers, or high-speed propellers, apply the maximum power of usually a single piston engine, piston or turboprop engine to drive a pair of ...

**one electrical motor as a source of power for the propeller *equipment: **two spotlights **2

sonar Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances ( ranging), communicate with or detect objects on ...

s (passive and active) **depth-levelling system *maximum speed: *range: *load capacity:

Technical data

Specification

See also