Rule 50.3(a), Setting and Sheeting Sails: Use of Outriggers
A competitor may hold a sheet outboard.
Is it permissible for a competitor to hold the sheet of a headsail or spinnaker outboard?
Rule 50.3(a) prohibits the use of an outrigger and defines it to be a fitting or other device. A competitor is neither a fitting nor a device. It is therefore permissible for a competitor to hold a sheet outboard, provided that rule 49 is complied with.
Racing Rules of Sailing for 2013-2016; Version 6
Racing Rules of Sailing for 2017-2020
Great Britain - RYA has declined to grant a license for prescriptions and cases.