GPS tracking for dinghies

   I used to use a Velocitek Speed Puck which had a really good replay facility which would generate polar diagrams. Now that people are using mobile phones for tracking, is there a comparable program/app that will do the same job and allow me to see my track/tacking angle and downwind Vmg? If it would work with a Foretrex that would be a bonus. xmas wishes, George Morris (Findhorn, Moray, Weta117, Phantom 903)

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Wetabix Send Private Message Find Member's Posts Posting king Joined: 15 Feb 10 Location: United Kingdom Online Status: Offline Posts: 117	Post Options Post Reply Quote Wetabix Report Post Quote Reply Topic: GPS tracking for dinghies Posted: 22 Dec 24 at 9:15am
	I used to use a Velocitek Speed Puck which had a really good replay facility which would generate polar diagrams. Now that people are using mobile phones for tracking, is there a comparable program/app that will do the same job and allow me to see my track/tacking angle and downwind Vmg? If it would work with a Foretrex that would be a bonus. xmas wishes, George Morris (Findhorn, Moray, Weta117, Phantom 903)

Wetabix Send Private Message Find Member's Posts Posting king Joined: 15 Feb 10 Location: United Kingdom Online Status: Offline Posts: 117	Post Options Post Reply Quote Wetabix Report Post Quote Reply Posted: 27 Dec 24 at 2:32pm
	OK: no response there - how about I am trying to download resQ to my android phone but Play Store doesn't recognize it. Does anyone know if it still exists?

Brass Send Private Message Find Member's Posts Really should get out more Joined: 24 Mar 08 Location: Australia Online Status: Offline Posts: 1151	Post Options Post Reply Quote Brass Report Post Quote Reply Posted: 27 Dec 24 at 9:28pm
	RaceQs? I think she be deadybones.

Wetabix Send Private Message Find Member's Posts Posting king Joined: 15 Feb 10 Location: United Kingdom Online Status: Offline Posts: 117	Post Options Post Reply Quote Wetabix Report Post Quote Reply Posted: 27 Dec 24 at 11:43pm
	I think you are right!

JimC Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6660	Post Options Post Reply Quote JimC Report Post Quote Reply Posted: 28 Dec 24 at 12:51am
	In the absence of more recent recommendations I used the free version of this some years ago. The free version is still available, but very old. It seems that the paid for version is still being maintained and developed, but I can't comment on how good it is. The free one was clunky but usable. Its a Java app so whatever you run it on needs to be capable of running Java apps. http://gpsactionreplay.free.fr/ Edited by JimC - 28 Dec 24 at 12:53am

Wetabix Send Private Message Find Member's Posts Posting king Joined: 15 Feb 10 Location: United Kingdom Online Status: Offline Posts: 117	Post Options Post Reply Quote Wetabix Report Post Quote Reply Posted: 28 Dec 24 at 8:03am
	Thankyou very much - that is exactly what I was looking for. Whether it is what I want/need is another matter. At 30 Euros it is competing with other more modern ones which are currently active. All I wanted to do was see if my very old wooden Phantom runs DDW faster or slower (Vmg) if you head off to one side a bit!

JimC Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6660	Post Options Post Reply Quote JimC Report Post Quote Reply Posted: 30 Dec 24 at 6:27pm
	The 30 Euro version was last updated (V7.0) on 1st November 2024, so that's reasonably active! The free version (v3.3.3) was sufficient for me to do an evaluation of downwind angles on my IC with some carefully structured testing. I don't think I've ever come across a boat that actually was faster on an exactly 180 degree run, but personally at least I've found I never seem to be happy sailing one, I always seem to find one gybe or the other preferable, using the test of throwing the boom across and seeing if anything changes. If one feels better than the other you can't be at 180!

Wetabix Send Private Message Find Member's Posts Posting king Joined: 15 Feb 10 Location: United Kingdom Online Status: Offline Posts: 117	Post Options Post Reply Quote Wetabix Report Post Quote Reply Posted: 30 Dec 24 at 7:01pm
	Thanks - I've read their blurb and installation all sounds rather difficult. Actually I may still have my old SpeedPuck Action Replay software loaded but haven't got a suitable track to load up and try out as my SpeedPuck is producing unplayable tracks. Having been given a smartphone by one of my children I was hoping I could use that but have so far not found out how. Thanks for your reply - I like the try it and see what happens method but after some 11 years of sailing what is basically a 'slow asymmetric' (a Weta) I confess that I am not very good at it and I don't think wooden Phantoms are actually compatible with GPS but I thought that I'd give it a try. Someone told me to let the kicker off downwind and that seemed to make a huge difference although I can't really see why. I usually find myself sailing with the apparent wind well off 180 degrees ('cos you unstall the sail go faster) but am surrounded by Aeros and Lasers running by the lee. I fear I have not learned much in the last 80 years or so....!

JimC Send Private Message Find Member's Posts Visit Member's Homepage Really should get out more Joined: 17 May 04 Location: United Kingdom Online Status: Offline Posts: 6660	Post Options Post Reply Quote JimC Report Post Quote Reply Posted: 30 Dec 24 at 9:00pm
	Try this. Be warned I wrote this nearly ten years ago, so the state of the art damn well ought to have improved, but its all I have to hand. https://devboats.co.uk/sailing/gpslogging/ Edited by JimC - 30 Dec 24 at 9:07pm

Wetabix Send Private Message Find Member's Posts Posting king Joined: 15 Feb 10 Location: United Kingdom Online Status: Offline Posts: 117	Post Options Post Reply Quote Wetabix Report Post Quote Reply Posted: 30 Dec 24 at 9:07pm
	Ahh..I recognize that. That's what I used to get from my SpeedPuck. I'll have a look at Gps logger, try it out on my bicycle and see if I can play it through the Velocitek Control Centre which I still have. (Everyday a new IT Faff, but I am learning!)