lifting-power

‘iiftin,pau-az ». power or capacity to lift or taise (an aeroplane or airship) in the air; lrftang-force; Irftrng-capacaty: as, the *lifting-power of gas; the *l1ftungpowers of het air. lifting-propeller ‘t1ftrn-pso,peloz m. a propeller of an airship whose function 1s to lift or raise the airship in the air; a lifting-screw; a vertical screw. lifting-serew ‘hiftry,sksou n. a revelving screw designed for lifting an airship; a gyrating helical aerofeil for raising a flying-machine into or thru the air; a l1fting-propeller. lifting-test ‘Irftrn,test n. a test or tzial of the Irftingpowers of a helxcepter or other mechanism. lifting-wheel ‘I1ftrn,wiit 7. a wheel or screw used to lift or raise an airs machine; a lifting-screw. lighter-than-air jat-toz-do’ne:z, (a umptivly) ‘ta1-tez-dome:z adj. po e ing le weight in proportion to bulk than - the air or atmosfere; of le specific gravity than the air: said of balloons or dirigibles which depend upon gases lighter than the air, or upon rarified air or a vacuum for sustaining-power: the oppos it of heavierzthanzair. lightning ‘lart-nin n. the visible discharge of electziczty between one group of clouds and another or between the clouds and the ground. ball lightning, lightning in the form of a slowly moving ball of fire which finally explodes, sometimes seen in hevy downpours of rain, and consisting of in cat i descent rarified air and gas. chained lightning, same meaning as chain lightning. chain lightning, lightning which a umes the form of a zigzag or broken line; forkt lightning. forkt lightning, zigzag lightning; chain lightning. sheet lightning, lightning in which a wide surface 1s illuminated at once, as summer-lightning or heatdlightning. summer lightning, see summer-lightning. lightning-flash ‘lait-nin,fix§ n. a flash or flame of lightning. lightning-recorder ‘tatt-nry-zz,ke:z-daz n. a modification of a wirele -telegraf instrument which recerds or indicates the presence of distant lightning. limb at ‘lim,bet. a cool nerthwest wind in the island of Cyprus. line-storm ‘tain,ste:zm ”. an equrnexial storm. list list inti. careen, heel, or incline to one side, as an airship in flight: as, rnttial *l1st; augmented *l1st. listing-moment ‘hstzn,moo-mont n. the moment or - effect of listing. see list. load-grading ‘lood,gee-din n. the grading (or rate of variation or change) of a variable load or normal pre ure, as along the length of an aerial screw-propeller blade.. com-- pare thrust-grading and linear grading.