Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Folding_propeller> ?p ?o }
Showing triples 1 to 39 of
39
with 100 triples per page.
- Folding_propeller abstract "A folding propeller is a type of propeller whose blades automatically fold out when the engine is turning, and then fold back (or \"feather\") when the engine stops. Folding propellers are found on sailing yachts, on model airplanes, and increasingly on self-launching gliders and small motor gliders, such as the Aériane Swift PAS. Their purpose of folding propellers is to reduce drag when sailing or soaring, respectively.Folding propellers are spun outwards by centrifugal force when the engine is turning, but when the engine stops, the pressure of airflow or waterflow forces the blades back. It follows that such propellers must be pushers, as tractor propellers cannot fold back. Typically, the blades are geared together so that they open and close in unison. Folding propellers used mainly to be two-bladed, but 3-bladed and 4-bladed versions are now available.Contrary to popular belief, a self-feathering propeller is not more efficient than a fixed bladed prop, as neither type can adopt an optimal blade angle. An exception is the Brunton Autoprop, which is not a typical folding propeller, but a self-actuating variable-pitch propeller. On a boat, most propellers are much less effective in astern, and this is particularly true of folding propellers; whereas the Brunton AutoProp is as effective astern as ahead. (Of course, aircraft have no reverse gear).The arguments for and against folding propellers are:".
- Folding_propeller thumbnail Folding_propeller_-_Gori_two_bladed.jpg?width=300.
- Folding_propeller wikiPageExternalLink www.flexofold.com.
- Folding_propeller wikiPageExternalLink www.gori-propeller.dk.
- Folding_propeller wikiPageExternalLink www.martec-props.com.
- Folding_propeller wikiPageID "19328591".
- Folding_propeller wikiPageLength "2602".
- Folding_propeller wikiPageOutDegree "10".
- Folding_propeller wikiPageRevisionID "689984579".
- Folding_propeller wikiPageWikiLink Aériane_Swift.
- Folding_propeller wikiPageWikiLink Category:Propellers.
- Folding_propeller wikiPageWikiLink Centripetal_force.
- Folding_propeller wikiPageWikiLink Drag_(physics).
- Folding_propeller wikiPageWikiLink Glider_(sailplane).
- Folding_propeller wikiPageWikiLink Motor_glider.
- Folding_propeller wikiPageWikiLink Propeller.
- Folding_propeller wikiPageWikiLink Sailing_yacht.
- Folding_propeller wikiPageWikiLink Variable-pitch_propeller.
- Folding_propeller wikiPageWikiLink File:Folding_propeller_-_Gori_two_bladed.jpg.
- Folding_propeller wikiPageWikiLinkText "Folding propeller".
- Folding_propeller wikiPageWikiLinkText "folding propeller".
- Folding_propeller wikiPageWikiLinkText "folding".
- Folding_propeller wikiPageUsesTemplate Template:Reflist.
- Folding_propeller subject Category:Propellers.
- Folding_propeller hypernym Propeller.
- Folding_propeller type MeanOfTransportation.
- Folding_propeller type Component.
- Folding_propeller type Dynamic.
- Folding_propeller type Machine.
- Folding_propeller comment "A folding propeller is a type of propeller whose blades automatically fold out when the engine is turning, and then fold back (or \"feather\") when the engine stops. Folding propellers are found on sailing yachts, on model airplanes, and increasingly on self-launching gliders and small motor gliders, such as the Aériane Swift PAS.".
- Folding_propeller label "Folding propeller".
- Folding_propeller sameAs Q2078632.
- Folding_propeller sameAs Foldepropel.
- Folding_propeller sameAs Klapschroef.
- Folding_propeller sameAs m.04n49l7.
- Folding_propeller sameAs Q2078632.
- Folding_propeller wasDerivedFrom Folding_propeller?oldid=689984579.
- Folding_propeller depiction Folding_propeller_-_Gori_two_bladed.jpg.
- Folding_propeller isPrimaryTopicOf Folding_propeller.