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Video: Windsurfing to 39 mph 34 knots with freestyle wave?
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windsurfillinois.com



Joined: 24 Nov 2010
Posts: 18

PostPosted: Thu Apr 14, 2022 4:11 am    Post subject: Video: Windsurfing to 39 mph 34 knots with freestyle wave? Reply with quote

Youtube video: Windsurfing to 39 mph, 34 knots, 62 km/h with wave / freestyle wave gear and inboard straps.

Date: April 10, 2022
Spot: Clinton Lake, IL
Rider: Reid Fillman
Sail: 4.2 Ezzy Tiger
Board: 95L RRD FSW
Fin: 31cm MFC Freewave
Camera: GoPro HERO6 Black

Video: [deleted]

Later,
Reid


Edit:
Videos from posts below and next page. Hit 35. something mph, 30 knots

Re-uploaded video: https://www.youtube.com/watch?v=NRk3oZPUKaw

Raw split screen video: https://www.youtube.com/watch?v=XX76Dg9kHlg

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Last edited by windsurfillinois.com on Thu Apr 21, 2022 8:06 am; edited 6 times in total
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joethewindsufa



Joined: 10 Oct 2010
Posts: 1188
Location: Montrťal

PostPosted: Thu Apr 14, 2022 5:25 am    Post subject: Reply with quote

NICE !!

i was surprised at how little chop there was !!
and actually sped up the viewing of the slomo
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boardsurfr



Joined: 23 Aug 2001
Posts: 1262

PostPosted: Thu Apr 14, 2022 7:25 pm    Post subject: Reply with quote

You are going quite fast for the gear, but the 39 knots looks like an artifact. The point-to-point variation is quite extreme, which is pretty typical for GoPro numbers. Numbers go from 35 to 39 knots and back in a fraction of a second.

Looks like you might be reaching 2-second averages near 35 mph (30.5 knots). That's still quite fast for the gear you are using.

If you'd want to have a good idea of your real speed, you'd need to put the data in analysis software like GPS Action Replay, and look at your 10-second averages. But getting the speed data out of the GoPro into a format that analysis software can use can be quite difficult.
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manuel



Joined: 08 Oct 2007
Posts: 1159

PostPosted: Fri Apr 15, 2022 7:02 am    Post subject: Reply with quote

31cm on a 4.2, woah, must go upwind well!
Never had issues with board control or stiff jibes?

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dhmark



Joined: 04 Sep 2007
Posts: 376

PostPosted: Fri Apr 15, 2022 7:47 am    Post subject: Reply with quote

boardsurfr wrote:
You are going quite fast for the gear, but the 39 knots looks like an artifact.

Might be camera placement high on mast, mast flex/movement supplementing the velocity instantaneously. Catapults will show high speeds too.
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coachg



Joined: 10 Sep 2000
Posts: 3287

PostPosted: Fri Apr 15, 2022 10:28 am    Post subject: Reply with quote

[quote="dhmark"]
boardsurfr wrote:
Catapults will show high speeds too.


Very Happy Very Happy Very Happy Very Happy Very Happy Very Happy Very Happy

Coachg
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ozzimark



Joined: 23 Dec 2020
Posts: 11

PostPosted: Sat Apr 16, 2022 6:09 am    Post subject: Reply with quote

dhmark wrote:
Might be camera placement high on mast, mast flex/movement supplementing the velocity instantaneously. Catapults will show high speeds too.


Aye, I’ve hit 40 knots flying through the air with a 170L Go!
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dllee



Joined: 03 Jul 2009
Posts: 5191
Location: East Bay

PostPosted: Sat Apr 16, 2022 10:56 am    Post subject: Reply with quote

Tip of mast get's launched at 40, boom area at 25, you connected by harness line at 15.......
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skyking1231



Joined: 10 Jul 2000
Posts: 275

PostPosted: Sat Apr 16, 2022 8:47 pm    Post subject: Reply with quote

Not to be Mr. Negative…but speed on the water would not be fluctuating back and forth like that. You can certainly lose speed very quickly …but regaining the speed back is slow …a lot slower. It can take quite sometime to go from say 30-35….and only a fraction of a second to from 35-30. Sorry but I highly doubt the speed reading . Like others mentioned mast movement or just glitches .
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windsurfillinois.com



Joined: 24 Nov 2010
Posts: 18

PostPosted: Sun Apr 17, 2022 6:11 pm    Post subject: Reply with quote

boardsurfr wrote:
Numbers go from 35 to 39...and back in a fraction of a second.

Looks like you might be reaching 2-second averages near 35 mph (30.5 knots). That's still quite fast for the gear you are using.



Thanks for the input, everybody.

I ran the same camera data through the GoPro phone app, instead of the GroPro Quik desktop version. And it's as skeptical as you guys are. Besides its algorithm filtering it gives a 1 sec average. It's saying I hit a sustained 35 point something mph. Not 39 mph MAX. The speedometer moves really smooth.


Uploaded new video: https://www.youtube.com/watch?v=NRk3oZPUKaw


Thx,
Reid
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