Reply
 
Thread Tools Search this Thread Display Modes
 
Old 01-07-2022, 04:57 PM   #1
Senior Member
 
City: lockhart
Join Date: Nov 2020
Posts: 384
What does S/D at 8kts look like?

Anyone have a video of a Fleming at 8kts? Or any other similar S/D at 8kts?
phillippeterson is offline   Reply With Quote
Old 01-07-2022, 06:13 PM   #2
Guru
 
psneeld's Avatar
 
City: Ft Pierce
Vessel Name: Sold
Vessel Model: Was an Albin/PSN 40
Join Date: Oct 2011
Posts: 28,155
No video... but my 40 with a 34 WLL throws a big enough wake at 6.5 knots that slowing down a bit is required to not upset marina dwellers.

The WLL is what determines speed and wake.
psneeld is online now   Reply With Quote
Old 01-07-2022, 06:28 PM   #3
Moderator Emeritus
 
ksanders's Avatar
 
City: SEWARD ALASKA
Vessel Name: DOS PECES
Vessel Model: BAYLINER 4788
Join Date: Feb 2011
Posts: 6,267
No video but I can tell you that any SD boat over 40' is bow level at 8 knots.
__________________
Kevin Sanders
Bayliner 4788 Dos Peces
Seward, Alaska - La Paz, Baja California Sur
https://maps.findmespot.com/s/XLJZ#history/assets
ksanders is offline   Reply With Quote
Old 01-07-2022, 07:29 PM   #4
Senior Member
 
trawlercap's Avatar
 
City: Bend, Oregon
Vessel Name: JoAhna K
Vessel Model: 58' Bill Garden Trawler 1952
Join Date: Aug 2020
Posts: 293
Couple pics of 56’ waterline x 16.5 beam. 61 tons disp. at 8 knots 6 gph and 10 kts. About 3 times the gphClick image for larger version

Name:	F0DB83B6-44E6-4487-8F6C-4661CA70C3CC.jpg
Views:	64
Size:	42.3 KB
ID:	124614

Click image for larger version

Name:	4B940FB1-6EAB-4201-A644-753442063730.jpg
Views:	56
Size:	196.1 KB
ID:	124615
trawlercap is offline   Reply With Quote
Old 01-07-2022, 07:42 PM   #5
Guru
 
angus99's Avatar
 
City: Signal Mtn., TN
Vessel Name: Stella Maris
Vessel Model: Defever 44
Join Date: Feb 2012
Posts: 2,742
Our boat is variously described as full and semi-displacement. The hull is round and deep with no hard chines, but it flattens a bit toward the stern. (Drawing on the left is amidship and on the right is basically the transom.) The video is us arriving in Chattanooga as we completed the northern half of the Loop. We’re running at hull speed the first 40 second or so of the video, if that’s helpful.

Attached Thumbnails
2E469201-5D51-45CC-9789-46B5F84D7864.jpg  
angus99 is offline   Reply With Quote
Old 01-07-2022, 07:43 PM   #6
Guru
 
Join Date: Feb 2010
Posts: 1,161
You can watch Tony Flemmings great videos on You Tube. Well worth checking out.

John T
N4061 is offline   Reply With Quote
Old 01-07-2022, 07:44 PM   #7
FWT
Guru
 
City: Centreville MD
Vessel Name: Resilient
Vessel Model: Helmsman Trawlers 38E
Join Date: Dec 2020
Posts: 1,510
Quote:
Originally Posted by phillippeterson View Post
Anyone have a video of a Fleming at 8kts? Or any other similar S/D at 8kts?
What is it you are trying to see? Wake? Or what life is like at 8 knots?
FWT is offline   Reply With Quote
Old 01-07-2022, 09:24 PM   #8
Senior Member
 
City: lockhart
Join Date: Nov 2020
Posts: 384
Quote:
Originally Posted by psneeld View Post
No video... but my 40 with a 34 WLL throws a big enough wake at 6.5 knots that slowing down a bit is required to not upset marina dwellers.

The WLL is what determines speed and wake.
Quote:
Originally Posted by ksanders View Post
No video but I can tell you that any SD boat over 40' is bow level at 8 knots.
Quote:
Originally Posted by FWT View Post
What is it you are trying to see? Wake? Or what life is like at 8 knots?
Hi, I was thinking wake. But, now that you mention it, what is life like?

This thread could be dead real soon or it could get interesting.

It seems like 8 knots is a good speed for a lot of boats, even a Fleming
phillippeterson is offline   Reply With Quote
Old 01-07-2022, 09:30 PM   #9
Guru
 
City: Rochester, NY
Vessel Name: Hour Glass
Vessel Model: Chris Craft 381 Catalina
Join Date: Aug 2019
Posts: 7,556
How a boat behaves at 8 kts will depend a lot on its length. For my 38 footer (33.5 waterline), 8 kts is plowing water, making a big wake, etc. 6.5 or a hair more is a much better speed for slow cruise. A good SD hull may be able to go a little faster before hitting the wall (mine is a planing hull), but not necessarily.
rslifkin is online now   Reply With Quote
Old 01-07-2022, 09:30 PM   #10
Guru
 
Jeff F's Avatar
 
City: Guelph
Vessel Name: Escapade
Vessel Model: 50` US Navy Utility trawler conversion
Join Date: Nov 2015
Posts: 2,432
Quote:
Originally Posted by phillippeterson View Post

It seems like 8 knots is a good speed for a lot of boats, even a Fleming
I'm with psneed. If you're not planing, it's all about WLL.

8 knots is a great speed for a 64' LWL boat.
Jeff F is offline   Reply With Quote
Old 01-07-2022, 09:39 PM   #11
Guru
 
Nomad Willy's Avatar
 
City: Concrete Washington State
Vessel Name: Willy
Vessel Model: Willard Nomad 30'
Join Date: Oct 2007
Posts: 18,743
Quote:
Originally Posted by trawlercap View Post
Couple pics of 56’ waterline x 16.5 beam. 61 tons disp. at 8 knots 6 gph and 10 kts. About 3 times the gphAttachment 124614

Attachment 124615
Trawlercap,
Your boat is FD.
Extremely over driven in top pic.

Ask Codger2 for a picture of his 34 Halvorsen at 8.5 knots.
__________________
Eric

North Western Washington State USA
Nomad Willy is offline   Reply With Quote
Old 01-07-2022, 09:56 PM   #12
Senior Member
 
trawlercap's Avatar
 
City: Bend, Oregon
Vessel Name: JoAhna K
Vessel Model: 58' Bill Garden Trawler 1952
Join Date: Aug 2020
Posts: 293
Quote:
Originally Posted by Nomad Willy View Post
Trawlercap,
Your boat is FD.
Extremely over driven in top pic.

Ask Codger2 for a picture of his 34 Halvorsen at 8.5 knots.
Yes 10 knots is top end for that boat.
trawlercap is offline   Reply With Quote
Old 01-07-2022, 10:17 PM   #13
Guru
 
socalrider's Avatar
 
City: San Diego
Vessel Name: SEA WOLF
Vessel Model: 1979 CHB 41 Trawler
Join Date: Feb 2020
Posts: 999
If someone will lend me a Fleming for a few months I'll take all the video you want.

Here's our CHB 41's wake at about 8kts
Attached Thumbnails
64876810455__CD0FABE9-EA2D-422F-9E7B-8F41BD4FC8D3.jpg  
socalrider is offline   Reply With Quote
Old 01-08-2022, 02:10 AM   #14
Guru
 
long-cours.62's Avatar
 
City: Szczecin
Vessel Name: Dryade
Vessel Model: Trawler 72
Join Date: Mar 2012
Posts: 738
Sorry no video

but two photo of our Long-Cours 62 at 11.6 kts
32T, 60' Lwl, 16'4" beam, 14'8" beam at wl
Attached Thumbnails
Hoa2.JPG   14984-albums574-picture3452.jpg  
long-cours.62 is offline   Reply With Quote
Old 01-08-2022, 08:01 AM   #15
FWT
Guru
 
City: Centreville MD
Vessel Name: Resilient
Vessel Model: Helmsman Trawlers 38E
Join Date: Dec 2020
Posts: 1,510
Quote:
Originally Posted by phillippeterson View Post
Hi, I was thinking wake. But, now that you mention it, what is life like?

This thread could be dead real soon or it could get interesting.

It seems like 8 knots is a good speed for a lot of boats, even a Fleming
Because I have a Helmsman 38 on order, as you might imagine I have collected some clip links as I shopped. The one below shows life at 7 knots under the eye of a training captain. At one point one can see the 7 knot speed on the chart plotter. At this speed one has time to think, assess, react.



Below are a few promo videos that appear to be filmed at 7-8 knots.





This is a smaller boat than what you are asking about but perhaps it might be helpful.
FWT is offline   Reply With Quote
Old 01-08-2022, 09:15 AM   #16
Senior Member
 
Steve1.0's Avatar
 
City: Hobe Sound
Vessel Name: Kumatage
Vessel Model: Grnd Bnks 46 cl
Join Date: Aug 2020
Posts: 229
A screenshot. GB 46, 44'dwl. 12kts. CAT 3208 x 2, 2083rpm. 16.8gph total
Attached Thumbnails
Screenshot_20220108-100337_Video Player.jpg  
Steve1.0 is offline   Reply With Quote
Old 01-08-2022, 10:09 AM   #17
Guru
 
City: Rochester, NY
Vessel Name: Hour Glass
Vessel Model: Chris Craft 381 Catalina
Join Date: Aug 2019
Posts: 7,556
Quote:
Originally Posted by Steve1.0 View Post
A screenshot. GB 46, 44'dwl. 12kts. CAT 3208 x 2, 2083rpm. 16.8gph total

That looks almost like a planing wake to me.

For comparison, the pictures below show my boat's wake at 5.5, 6.5, and 17 kts.
Attached Thumbnails
IMG_20200903_101529.jpg   PXL_20210530_172517541.jpg   IMG_20200703_143233.jpg  
rslifkin is online now   Reply With Quote
Old 01-08-2022, 10:55 AM   #18
Senior Member
 
Steve1.0's Avatar
 
City: Hobe Sound
Vessel Name: Kumatage
Vessel Model: Grnd Bnks 46 cl
Join Date: Aug 2020
Posts: 229
rslifkin At 12kts it is almost planing. I think I was surfing a bit in that shot. It's a screen shot taken from a video clip.

I don't know how to post videos to the forum.
Steve1.0 is offline   Reply With Quote
Old 01-08-2022, 10:58 AM   #19
Senior Member
 
City: lockhart
Join Date: Nov 2020
Posts: 384
These are all awesome. More. More.
phillippeterson is offline   Reply With Quote
Old 01-10-2022, 02:30 PM   #20
Guru
 
Join Date: Feb 2010
Posts: 1,161
H38E Video

[QUOTE=FWT;1066437]Because I have a Helmsman 38 on order, as you might imagine I have collected some clip links as I shopped. The one below shows life at 7 knots under the eye of a training captain. At one point one can see the 7 knot speed on the chart plotter. At this speed one has time to think, assess, react.

Nice looking H38E videos, I like the one filmed in San Diego, looks a little familiar.

John T. - N4050, N4061, N3522, H38E former owner

Marshall Marine Sandpiper - current owner
N4061 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Trawler Port Captains
Port Captains are TF volunteers who can serve as local guides or assist with local arrangements and information. Search below to locate Port Captains near your destination. To learn more about this program read here: TF Port Captain Program





All times are GMT -5. The time now is 09:01 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2006 - 2012