I have had a number of requests for sources of polar diagrams for cruising sailors following my previous post here. Unfortunately the link I gave in that post to a free polar diagram app no longer works, but there is a great little replacement that is worth looking at – iPolar
iPolar generates sailing yachts polars of cruising yachts and cruiser racers from a very simple set of data
Mandatory Input data: Length Overall, Displacement, Mainsail area, jib area (units can be set to metric or imperial)
- Optional data: Symmetrical Spinnaker area, Assymetrical spinnaker area
Its available in the Apple App Store.