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Search: Posts Made By: nautdesign1
Showing results 1 to 25 of 58
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Forum: General Boating Discussion
12-03-2025, 12:03 PM
Replies: 15
Views: 14,820
Posted By nautdesign1

For the record Matt (whilst I disagree with you...

For the record Matt (whilst I disagree with you on this point) you otherwise do a brilliant job. I also agree that an MTI witch hunt is not appropriate as any of these modern light “high wing area...
Forum: General Boating Discussion
12-03-2025, 11:26 AM
Replies: 132
Views: 36,245
Posted By nautdesign1

14 years later yet the laws of aerodynamics...

14 years later yet the laws of aerodynamics remain the same.....

https://cimg8.ibsrv.net/gimg/www.offshoreonly.com-vbulletin/2000x602/image_e178eb6b03486ebad07c29eb2ac120e8453432de.png
Forum: General Boating Discussion
12-02-2025, 01:32 PM
Replies: 15
Views: 14,820
Posted By nautdesign1

Sorry Matt but you are wrong on this point. If...

Sorry Matt but you are wrong on this point. If you look at the comments and ‘thumbs’ you will see that almost no one agrees with your perspective.

The collective view is -pay respect to those who...
Forum: General Boating Discussion
12-01-2025, 01:04 PM
Replies: 132
Views: 36,245
Posted By nautdesign1

Firstly, my condolences to the families of the...

Firstly, my condolences to the families of the deceased. If these figures are indeed correct (and one then calculates the death rate/(hours operated X total builds) this is completely unacceptable.
...
Forum: General Boating Discussion
03-19-2025, 02:41 PM
Replies: 65
Views: 14,575
Posted By nautdesign1

“I love Pete, love skaters, hate balsa core and...

“I love Pete, love skaters, hate balsa core and what it takes to replace and or repair. These pictures crack me up when I look at them. Pete and my son are both F1 junkies so they were inside our...
Forum: General Boating Discussion
03-17-2025, 03:49 PM
Replies: 65
Views: 14,575
Posted By nautdesign1

Hey Brad, For sure excess resin is a problem...

Hey Brad,

For sure excess resin is a problem as all of the strength is in the fibers. That’s one of the main advantages of bagging/infusion. It sucks out the excess resin whilst using the mass of...
Forum: General Boating Discussion
03-16-2025, 01:32 PM
Replies: 65
Views: 14,575
Posted By nautdesign1

You are confusing the resin with the fabric....

You are confusing the resin with the fabric. Epoxy has the best elongation and fatigue properties. When used as the matrix with high modulus carbon, the failure mode is dominated by the carbon. For...
Forum: General Boating Discussion
06-28-2021, 03:03 PM
Replies: 57
Views: 30,959
Posted By nautdesign1

Why do some people feel the need to make factual...

Why do some people feel the need to make factual statements which imply expertise when in reality they don’t have a clue. With proper scarf ratios, modern epoxies, reinforcements and proper...
Forum: General Boating Discussion
02-14-2021, 10:27 AM
Replies: 87
Views: 26,049
Posted By nautdesign1

Exactly ND1

Exactly

ND1
Forum: General Boating Discussion
03-02-2020, 10:25 AM
Replies: 55
Views: 31,524
Posted By nautdesign1

Matt, I read your earlier point as one of hull...

Matt, I read your earlier point as one of hull efficiency…and in that regard you are spot on. The Crouch constant corresponding to a weight of 17,500 lbs, speed of 125MPH and 2700 HP is about 318....
Forum: General Boating Discussion
11-13-2019, 04:47 PM
Replies: 34
Views: 14,458
Posted By nautdesign1

In the story it seems Steve David is solely...

In the story it seems Steve David is solely attributing the initial pitching moment to the vortex interaction but given 2/3+ of the lift (of a wing in ground effect) is derived from the lower (high...
Forum: General Boating Discussion
11-13-2019, 03:26 PM
Replies: 34
Views: 14,458
Posted By nautdesign1

These aerodynamic proximity effects can be tricky...

These aerodynamic proximity effects can be tricky to lock down without running CFD. Certainly any vortex lift would need to act in a manner that enhances lift on the adjacent boat by virtue of the...
Forum: General Boating Discussion
06-26-2019, 11:46 AM
Replies: 12
Views: 5,541
Posted By nautdesign1

Thanks Boatally –that is valuable information and...

Thanks Boatally –that is valuable information and the crosswind point may be highly relevant as powerboats are essentially backward flying darts. Those old Linder hulls do run on their nose a bit and...
Forum: General Boating Discussion
06-25-2019, 12:17 PM
Replies: 12
Views: 5,541
Posted By nautdesign1

Very pleased to hear there were no serious...

Very pleased to hear there were no serious injuries.

On that basis hopefully it is not rude to ask what the industry can learn from this incident? If an engine failure causes a near instantaneous...
Forum: General Boating Discussion
09-11-2018, 01:29 PM
Replies: 32
Views: 6,202
Posted By nautdesign1

Indeed –as another non-American I wish our...

Indeed –as another non-American I wish our friends and allies in the US the best of luck. The unconditional generosity that is displayed in this thread is so impressive and yet another example of...
Forum: General Boating Discussion
09-09-2018, 04:08 PM
Replies: 41
Views: 21,323
Posted By nautdesign1

Brilliant – the fine art of sarcasm executed with...

Brilliant – the fine art of sarcasm executed with vigor : )


ND1
Forum: General Boating Discussion
04-08-2018, 09:34 AM
Replies: 30
Views: 25,751
Posted By nautdesign1

How do you derive that question from my previous...

How do you derive that question from my previous posts? It appears you have a thing for Mr. Linder but I reference him ONLY as yet another example of a designer that utilises variable lateral...
Forum: General Boating Discussion
04-07-2018, 09:27 AM
Replies: 30
Views: 25,751
Posted By nautdesign1

1) The concept is the same as the Linder...

1) The concept is the same as the Linder hulls but the low deadrise planes are not longitudinally continuous which results in diverging angles of incidence. That’s why I used the term...
Forum: General Boating Discussion
04-06-2018, 02:27 PM
Replies: 30
Views: 25,751
Posted By nautdesign1

[QUOTE=Skater30;4620174] Once again, Skater is...

[QUOTE=Skater30;4620174] Once again, Skater is leading the way in catamaran hull technology.........

Let’s not get too carried away. George Linder, Steve Koss and the UIM Formula 1 class have been...
Forum: General Boating Discussion
10-20-2016, 07:50 PM
Replies: 212
Views: 56,998
Posted By nautdesign1

I have not been on OSO for a long time but the...

I have not been on OSO for a long time but the carnage of late is hard to ignore.

Tunnel boats are absolutely wings in that they create aerodynamic lift via a pressure differential between the...
Forum: General Boating Discussion
11-19-2013, 11:50 AM
Replies: 64
Views: 12,409
Posted By nautdesign1

…but he has the most lovely wife that more than...

…but he has the most lovely wife that more than makes up for his indiscretions :).

Seriously though, he is correct in that there are many applications where SMALL turbines are installed in less...
Forum: General Boating Discussion
11-18-2013, 12:46 PM
Replies: 64
Views: 12,409
Posted By nautdesign1

Quite –I’m confident your objective view of the...

Quite –I’m confident your objective view of the material risks does not provide you with an automatic admission to the ‘liberal media’ club…

On other matters, rather than rudely interrupt the...
Forum: General Boating Discussion
11-14-2013, 12:27 PM
Replies: 64
Views: 12,409
Posted By nautdesign1

Red face As usual, (save for his view on the efficiency of...

As usual, (save for his view on the efficiency of stepped hulls :)), this chaps makes the most compelling points -the track record is absolutely horrendous. However it is also clear the reliability...
Forum: General Boating Discussion
07-12-2013, 02:50 PM
Replies: 13
Views: 1,885
Posted By nautdesign1

Also the audio portion really illustrates how...

Also the audio portion really illustrates how well the throttleman is anticipating the water. This chap is on point.

ND1
Forum: General Boating Discussion
10-01-2012, 05:37 PM
Replies: 63
Views: 12,587
Posted By nautdesign1

Bingo

Bingo
Showing results 1 to 25 of 58
 
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