Performance of Inflatable Life Rafts and Drogues in Wind and Waves, Volume 1: Main Report, Volume 2: Appendices

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TypeTechnical Report
Series titleContractor Report
Subjectliferaft; drogue; drift; series drogue; breaking waves; steepness
AbstractThe present report documents a test series conducted in the towing tank on life raft drift, towed life raft resistance and towed drogue resistance. These complimented a series of tests conducted by Fleet Technology Limited dealing with the capsize of a 1:7 scale model of a 20 person life raft. Towed resistance experiments conducted on standard drogues at full scale and 1:5, 1:7 and 1:9 scales. Experiments with series drogues (consisting of up to 40 cones in series) were conducted at full scale, at 1:7 scale and for an oversized full scale drogue design. Towed resistance experiments were conducted on a full scale 16 person life raft and on a 1:7 scale model of a 20 person raft. Wind drag experiments were also conducted for a range of canopy orientations relative to the wind direction. Life raft drift experiments were performed with the 1:7 model for 0.35 and 0.75 in regular waves with 1:15 and 1:7 steepness to simulate breaking wave conditions.
Publication date
PublisherNational Research Council Canada. Institute for Marine Dynamics
PlaceSt. John's, NL
AffiliationNRC Institute for Ocean Technology; National Research Council Canada
Peer reviewedNo
NRC number6013
NPARC number8894838
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Record identifierb0148d8b-f209-4dc8-ad41-c9439da91847
Record created2009-04-22
Record modified2016-10-03
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