contrapropellern.

/ˌkɒntrəprəʊˈpɛlə/

Etymology: < contra- prefix 2 + propeller n.

One of a pair of propellers having concentric shafts and rotating in opposite directions; a contra-rotating propeller.

ΘΚΠ

society > travel > travel by water > vessel, ship, or boat > equipment of vessel > propulsion machinery > [noun] > propeller > types of

screw propeller1835

screw1839

reversing propeller1849

contrapropeller1927

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [noun] > aircraft engine > propeller > types of propeller

tractor1903

contrapropeller1927

controllable-pitch1929

fixed-pitch propeller1931

contraprop1940

propfan1970

propulsor1975

1927 N. Skene Elem. Yacht Design (1936) xvii. 227 The Star contrapropeller..consists of fixed blades just abaft the propeller, set at an angle to extract a forward thrust from the rotation of the propeller jet.

1939 Jrnl. Royal Aeronaut. Soc. 43 109 Tests of an eight-blade contra-propeller of 32-in. diameter..were made in the wind tunnel at Stanford University.

Derivatives

ˈcontraprop n.

/ˈkɒntrəprɒp/

ΘΚΠ

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [noun] > aircraft engine > propeller > types of propeller

tractor1903

contrapropeller1927

controllable-pitch1929

fixed-pitch propeller1931

contraprop1940

propfan1970

propulsor1975

1940 Flight 25 Jan. 86/1 Twin engines mounted one behind the other in the fuselage, driving contra-props.

1940 Times 28 Mar. 10/6 A ‘contraprop’..is a co-axial, oppositely rotating airscrew.

This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018).

单词	contrapropeller
释义	contrapropellern. /ˌkɒntrəprəʊˈpɛlə/ Etymology: < contra- prefix 2 + propeller n. One of a pair of propellers having concentric shafts and rotating in opposite directions; a contra-rotating propeller. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > propulsion machinery > [noun] > propeller > types of screw propeller1835 screw1839 reversing propeller1849 contrapropeller1927 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [noun] > aircraft engine > propeller > types of propeller tractor1903 contrapropeller1927 controllable-pitch1929 fixed-pitch propeller1931 contraprop1940 propfan1970 propulsor1975 1927 N. Skene Elem. Yacht Design (1936) xvii. 227 The Star contrapropeller..consists of fixed blades just abaft the propeller, set at an angle to extract a forward thrust from the rotation of the propeller jet. 1939 Jrnl. Royal Aeronaut. Soc. 43 109 Tests of an eight-blade contra-propeller of 32-in. diameter..were made in the wind tunnel at Stanford University. Derivatives ˈcontraprop n. /ˈkɒntrəprɒp/ ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > means of propulsion > [noun] > aircraft engine > propeller > types of propeller tractor1903 contrapropeller1927 controllable-pitch1929 fixed-pitch propeller1931 contraprop1940 propfan1970 propulsor1975 1940 Flight 25 Jan. 86/1 Twin engines mounted one behind the other in the fuselage, driving contra-props. 1940 Times 28 Mar. 10/6 A ‘contraprop’..is a co-axial, oppositely rotating airscrew. This entry has not yet been fully updated (first published 1972; most recently modified version published online June 2018). < n.1927
随便看	distringases distrix distroublance distrouble distroubled distroubler distroubling distrouser distruss distrust do-gooder do-goodery do-gooding do-goodism do-goody do-it-himself do-it-yourself do-it-yourself-manship do-it-yourselfer do-it-yourselfing do-it-yourselfism do-little do-naught do-nothing do-nothingism