Search found 5337 matches

by jimh
Mon Nov 12, 2018 9:22 am
Forum: VHF MARINE RADIO
Topic: Transmission Line Loss by Cable Type
Replies: 1
Views: 24

Re: Transmission Line Loss by Cable Type

Power ratios expressed in decibels can be converted to a numerical power ratio (gain or loss) . The formula is Power ratio = 10^(dB/10) For example, a power ratio of 5 dB is Power ratio = 10^(5/10) = 3.16 Another example: a a power ratio of -2 dB is Power ratio = 10^(-2/10) = 0.63 Power ratios expre...
by jimh
Sun Nov 11, 2018 8:25 am
Forum: SMALL BOAT ELECTRICAL
Topic: Adding USB outlet
Replies: 2
Views: 46

Re: Adding USB outlet

...if the digital voltage display is always on it will eventually run down the battery while in storage for several weeks. Your analysis is correct. The power to operate a digital display monitoring the voltage will come from the battery powering the display. Although the current may be low, over t...
by jimh
Sat Nov 10, 2018 3:46 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 1988 NEWPORT 17 Battery In Anchor Locker
Replies: 1
Views: 62

Re: 1988 NEWPORT 17 Battery In Anchor Locker

How much does each 12-Volt battery weigh? What are the case dimensions? A Group-24 battery, INTERSTATE MTP-24, weighs 44.4-lbs. Its case is 11-inches by 6.875-inches. That is a loading of 44-lbs / (11x6.875) = 44-lbs/75.625-inches = 0.58-lbs/square-inch Now suppose a human that weighs 200-lbs stands...
by jimh
Sat Nov 10, 2018 11:54 am
Forum: VHF MARINE RADIO
Topic: Transmission Line Loss by Cable Type
Replies: 1
Views: 24

Transmission Line Loss by Cable Type

As a general rule in designing a radio transmission system, the loss in the transmission line should be kept to a minimum. There will always be some loss in the transmission line, but a line loss figure of -1 dB is a reasonable goal. A loss of 1 dB means the power will be reduced by a factor of 0.74...
by jimh
Sat Nov 10, 2018 9:43 am
Forum: REPAIRS and MODIFICATIONS
Topic: 1994 Outrage 21 Fuel Tank Replacement
Replies: 6
Views: 178

Re: 1994 Outrage 21 Fuel Tank Replacement

...With bad conditions, the mileage didn't drop a little--it tanked. This usage of tanked seemed quite interesting to me, as it talks about the fuel tank and how the level of the fuel in that container dropped quickly or tanked, making almost a nice pun. This led me to read further about the many m...
by jimh
Sat Nov 10, 2018 9:20 am
Forum: MARKETPLACE
Topic: FS: 2013 150 Super Sport, Unknown Location, Unknown Price
Replies: 3
Views: 105

Re: FS: 2013 150 Super Sport, Unknown Location, Unknown Price

Please see the required minimum content for listings. This listing omits location and price.
by jimh
Sat Nov 10, 2018 8:55 am
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

Get a 9.9-HP with pull start for these reasons: --without electric start the engine will be lighter, which will help maintain the best performance; --without electric start the engine will be cheaper; --without electric start the engine won't need a heavy starting battery on the boat; --without elec...
by jimh
Sat Nov 10, 2018 8:47 am
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

I had a SPORT 13 ...[Using tiller steering] was uncomfortable as the rear seat should have been moved further aft... The problem you had was your boat was a SPORT. When Boston Whaler made the 13 STANDARD model--not intended for a console and remote steering--then Boston Whaler DID locate the rear s...
by jimh
Sat Nov 10, 2018 8:42 am
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

Dutchman wrote:...the OP can then determine if that gives him a performance that is satisfactory.

The goal is to have a boat his young son can run. It is gonna go as fast as a 9.9 can push it.
by jimh
Fri Nov 09, 2018 9:21 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Strange voltage reading
Replies: 5
Views: 195

Re: Strange voltage reading

n accurately reading DVM is a great help in any sort of analysis of electrical voltage readings.
by jimh
Fri Nov 09, 2018 7:16 pm
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

My wife's aunt had a SPORT 13 with a 25-HP Evinrude. You could pull up a water skier--albeit a light water skier--with that rig.
by jimh
Fri Nov 09, 2018 1:05 pm
Forum: The GAM
Topic: Offshore Collision At Sea: Attessa IV and Prowler
Replies: 21
Views: 668

Re: Offshore Collision At Sea: Attessa IV and Prowler

DUANE--I know the answer to your trivia question. Check your PM inbox.
by jimh
Fri Nov 09, 2018 9:37 am
Forum: The GAM
Topic: My 1975 Revenge 21
Replies: 7
Views: 426

Re: My 1975 Revenge 21

My inference from your comments: your 1975 REVENGE 21 has the stock transom, and uses an engine with a 20-inch shaft. With the mounting you show with the added jack plate, you should have plenty of range of adjustment in the engine mounting height. Re the continuousWave Tee-shirts: they are collecto...
by jimh
Fri Nov 09, 2018 9:11 am
Forum: The GAM
Topic: Range of Discount on New 150 MONTAUK
Replies: 6
Views: 183

Re: Range of Discount on New 150 MONTAUK

Back in the last century, a dealer might order a Boston Whaler boat on speculation. The options available were limited, and many could be fitted to the boat after it left the factory. Today with options for multiple molded-in hull colors, multiple railing configurations, and significant permanent ad...
by jimh
Fri Nov 09, 2018 8:58 am
Forum: Introduction
Topic: Mandatory Style Elements
Replies: 1
Views: 372

Re: Mandatory Style Elements

Posts will be routinely edited to: --correct misspellings or errors in grammar; --change sentence construction to more direct, more simple, and more concise expression, particularly to remedy the annoying modern practice of employing gerunds as the complement to the verb "to be"; --to elim...
by jimh
Thu Nov 08, 2018 6:17 pm
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

The need for a 9.9-HP comes from the limitation of the New Jersey law, not from anything else in particular. If the 13-year-old is going to be legally eligible to operate the boat alone, the engine must be not greater than 9.9-HP. Even if the OP borrows a 9.9-HP and tests, he won't have any options ...
by jimh
Thu Nov 08, 2018 3:16 pm
Forum: VHF MARINE RADIO
Topic: 2018 VHF Marine Band Radio Round-up
Replies: 0
Views: 55

2018 VHF Marine Band Radio Round-up

Here is a short list of VHF Marine Band fixed-mount 25-Watt radios with NMEA-2000 and their MSRP and retail prices, in order of lowest retail price. The hyperlinked text leads to additional articles that concentrate on describing the particular radio in detail. 2018 VHF Marine Band Radios with Class...
by jimh
Thu Nov 08, 2018 2:49 pm
Forum: The GAM
Topic: Offshore Collision At Sea: Attessa IV and Prowler
Replies: 21
Views: 668

Re: Offshore Collision At Sea: Attessa IV and Prowler

Contributing to the notoriety of the ANDRIA DORIA sinking was the relatively close-to-shore position that enabled newsreel cameramen to fly out in small planes and record the event on film, and for that film to be processed and shown on American television the same day in the largest television mark...
by jimh
Thu Nov 08, 2018 9:24 am
Forum: PERFORMANCE
Topic: Outrage Engine Mounting Height; Performance
Replies: 4
Views: 164

Re: Outrage Engine Mounting Height; Performance

KARLOW--a week has passed since your initial posting. You have not contributed any of the requested information, even the most simple information such as identifying the length of the boat you are asking about. Are you still interested in this discussion?
by jimh
Thu Nov 08, 2018 8:55 am
Forum: REPAIRS and MODIFICATIONS
Topic: Waviness and Spider Cracking in c.1989 Boat
Replies: 1
Views: 122

Re: Waviness and Spider Cracking in c.1989 Boat

...The starboard side transom was wavy. Is this a common problem? Or, is [a wavy transom] a cause for concern? The incidence of wavy hull sides in 13-foot Boston Whaler boats by my recollection has been very low, and I cannot actually recall anyone ever mentioning this in the 13-foot hulls. General...
by jimh
Wed Nov 07, 2018 12:28 pm
Forum: The GAM
Topic: Offshore Collision At Sea: Attessa IV and Prowler
Replies: 21
Views: 668

Re: Offshore Collision At Sea: Attessa IV and Prowler

Having some familiarity with the circumstances of the ANDRIA DORIA and its collision with the STOCKHOLM, the role of RADAR in the situation was a result of an error in interpretation of the RADAR returns. The ships were approaching each other on nearly parallel courses and in heavy fog. Each ship th...
by jimh
Wed Nov 07, 2018 11:37 am
Forum: The GAM
Topic: November Gales
Replies: 10
Views: 281

Re: November Gales

When the EDMUND FITZGERALD was built her hull depth was 39-feet. At her initial rating by the USCG for maximum cargo capacity her LOAD LINE CERTIFICATE in the sailing season on the Great Lakes designated as "winter" (November 1 to March 31) the required minimum freeboard was to be 14-feet ...
by jimh
Wed Nov 07, 2018 10:58 am
Forum: The GAM
Topic: November Gales
Replies: 10
Views: 281

Re: November Gales

Back to the topic of this thread, November Gales, and the question of the fuel oil used on the steamer EDMUND FITZGERALD: The report of the investigation by the Coast Guard into the sinking contained these comments about the fuel used: 8. Pollution On the morning of 11 November 1975, when it became ...
by jimh
Wed Nov 07, 2018 10:17 am
Forum: The GAM
Topic: November Gales
Replies: 10
Views: 281

Re: November Gales

Returning to the topic of this thread, November Gales, there are two more major ship losses in November. The steamer CARL D. BRADLEY sank on November 18, 1958 in Lake Michigan during a gale. This voyage was also intended to be the last one of the that season. The ship broke in two on the surface. Th...
by jimh
Wed Nov 07, 2018 9:37 am
Forum: The GAM
Topic: Offshore Collision At Sea: Attessa IV and Prowler
Replies: 21
Views: 668

Re: RADAR

According to unofficial accounts of the collision between the ATTESSA IV and PROWLER, both boats were equipped with RADAR. Any watchstander on either boat should have been getting a RADAR return target from the other boat. As DUTCH mentioned earlier, at this point the cause of the collision appears ...
by jimh
Wed Nov 07, 2018 9:09 am
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

Does your 9.9-HP engine have electric start and electric power trim-tilt? Those features add weight and need a battery--more weight. Those added weights should also be considered in the decision to use tiller steering or remote steering.
by jimh
Wed Nov 07, 2018 8:44 am
Forum: PERFORMANCE
Topic: SPORT 13 with 9.9-HP
Replies: 14
Views: 235

Re: SPORT 13 with 9.9-HP

According to Boston Whaler, a 13-foot hull can reach plane with 9-HP. See http://continuouswave.com/whaler/reference/13/ A 13-year-old will find boating more exciting if his boat can get on plane. On that basis, the total boat weight should be kept to a minimum. I suggest the initial set-up be with ...
by jimh
Tue Nov 06, 2018 4:48 pm
Forum: The GAM
Topic: November Gales
Replies: 10
Views: 281

Re: November Gales

Behind the EDMUND FITZGERALD was the ARTHUR ANDERSON. Bernie Cooper was the captain. Here is an interview with Captain Cooper:

https://www.youtube.com/watch?time_continue=6&v=3VXY6tuZ5eU
by jimh
Tue Nov 06, 2018 2:00 pm
Forum: REPAIRS and MODIFICATIONS
Topic: 1985 Challenger 25 Makeover (continued)
Replies: 23
Views: 4865

Re: 1985 Challenger 25 Makeover (continued)

Pete--very nice work and very nice of you to follow up with new pictures. Re the E-TEC engines: my E-TEC runs like a diesel. You set the engine speed, and that is the engine speed. Steady engine RPM no matter what. I love that aspect, particularly when you have to run into some head seas. The engine...
by jimh
Tue Nov 06, 2018 12:53 pm
Forum: The GAM
Topic: November Gales
Replies: 10
Views: 281

Re: November Gales

Regarding the new sidebar topic, not about gales, but about propulsion engines: the EDMUND FITZGERALD had a steam turbine propulsion engine engine and steam turbine generators. The propeller shaft turned at 99-RPM at maximum service speed. The propeller pitch was something like 15.9-feet and diamete...
by jimh
Mon Nov 05, 2018 1:32 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Aspect Ratio
Replies: 3
Views: 58

Re: Aspect Ratio

Image
Fig. 1. Comparison of screen size between HDS-8 and HDS-9.
This graphic assumes the display in the HDS-9 is a 16:9 aspect ratio.
by jimh
Mon Nov 05, 2018 1:31 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Aspect Ratio
Replies: 3
Views: 58

Re: Aspect Ratio

For navigation purposes the most useful display might be a square display or an aspect ratio of 1:1. If we typically plot the boat's present position in the center of the display then a square display gives the best presentation of the environment around us. As the display transitions from square to...
by jimh
Mon Nov 05, 2018 1:30 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Aspect Ratio
Replies: 3
Views: 58

Re: Aspect Ratio

A further problem in the screen dimension is the orientation. It might be said for a SONAR device that the most important screen dimension is vertical pixels. Vertical pixels show the water column details. Horizontal pixels show the water column history. For the fisherman we might postulate that ver...
by jimh
Mon Nov 05, 2018 1:29 pm
Forum: SMALL BOAT ELECTRICAL
Topic: Aspect Ratio
Replies: 3
Views: 58

Aspect Ratio

I am reprinting several earlier articles from the old forum in this thread in the new forum. One aspect of the HDS Gen2 Touch that was somewhat troublesome for me was the screen dimension. And here I am using aspect as an intentional double entendre. The HDS Gen2 Touch screen has a much different as...
by jimh
Mon Nov 05, 2018 12:29 pm
Forum: The GAM
Topic: November Gales
Replies: 10
Views: 281

November Gales

About 30-years ago I attended a lecture given by a meteorologist from Ann Arbor who worked for what was then called "The Weather Bureau" (now NOAA). The topic was the weather on the Great Lakes in November. Although it has been many years, I still very clearly recall two startling observat...
by jimh
Mon Nov 05, 2018 11:15 am
Forum: REPAIRS and MODIFICATIONS
Topic: RAGE Jet Re-power
Replies: 6
Views: 274

Re: More clarity please on Yamaha engine direct bolt-in replacements

...there are three engines that are direct bolt in for the RAGE. The Yamaha 601 is the base motor in this boat. There are two other Yamaha engines that fit on the bottom bolt pattern. Please give more details on the two other engines besides the Yamaha 601 that will be a direct bolt-in fit on a RAGE.
by jimh
Mon Nov 05, 2018 5:01 am
Forum: REPAIRS and MODIFICATIONS
Topic: RAGE Jet Re-power
Replies: 6
Views: 274

Re: What is "it" that you glassed in

whalerguy321 wrote:...On the other I removed everything and glassed it in.


I don't follow your description. What is "it" that you glassed in?
by jimh
Mon Nov 05, 2018 4:52 am
Forum: The GAM
Topic: Location of Label on Mills Canvas
Replies: 2
Views: 91

Re: Location of Label on Mills Canvas

Do you really have the SUNTOP canvas? Or, do you have the smaller FLYING TOP canvas? The total weather canvas system with a forward dodger, windshield, side curtains, and aft drop curtain was for the use with the Flying Top. I have a Wm. J Mills & Co. Flying Top on my boat (but it's not an Outra...
by jimh
Sun Nov 04, 2018 10:53 am
Forum: SMALL BOAT ELECTRICAL
Topic: OMC Wiring Harness
Replies: 1
Views: 154

Re: OMC Wiring Harness

The splices appear to be made with heat-shrink insulation--as you described, a good job. WIthout knowing what engine you have or the year, it is impossible to know the cost for a replacement wiring harness. If the wiring harness pre-dates the conversion by OMC to their modular wiring system (MWS) en...
by jimh
Sat Nov 03, 2018 11:39 am
Forum: The GAM
Topic: More Consolidation: Brunswick Buys 11 Favorite Brands
Replies: 5
Views: 564

Re: More Consolidation: Brunswick Buys 11 Favorite Brands

Some years ago Brunswick formed a new operating division, Brunswick New Technologies. They bought a great New Zealand marine electronics company, NAVMAN. Navman made very nice gear--really well-designed and well-made--and was a growing company. After they were taken into the Brunswick ownership, the...
by jimh
Fri Nov 02, 2018 7:11 pm
Forum: MARKETPLACE
Topic: For Sale: 1985 Montauk 17 - $17,500.00
Replies: 5
Views: 306

Re: For Sale: 1985 Montauk 17 - $17,500.00

Where is the boat located?
by jimh
Fri Nov 02, 2018 2:14 pm
Forum: The GAM
Topic: Taylor Made Sold
Replies: 2
Views: 307

Re: Taylor Made Sold

Consolidation of suppliers in the boating industry has been underway (a pun) for some time. See this article about how Brunswick now owns just about every decent supplier of boat electrical devices: More Consolidation: Brunswick Buys 11 Favorite Brands http://continuouswave.com/forum/viewtopic.php?f...
by jimh
Fri Nov 02, 2018 1:43 pm
Forum: MARKETPLACE
Topic: Appraisal 13 Whaler
Replies: 3
Views: 131

Re: Appraisal 13 Whaler

If you like the boat, engine, and trailer, the price seems quite modest.
by jimh
Fri Nov 02, 2018 12:31 pm
Forum: The GAM
Topic: NJ Captain charged in collison
Replies: 2
Views: 207

Re: NJ Captain charged in collison

...New Jersey yacht captain...[pled] guilty Tuesday in U.S. District Court in Providence to seaman's manslaughter... Apparently "Seaman's Manslaughter" is a crime under federal jurisdiction. I have never heard of that crime. Generally any crime must be specified by the statue it violates,...
by jimh
Fri Nov 02, 2018 11:10 am
Forum: REPAIRS and MODIFICATIONS
Topic: Filling Console Cut-outs No Longer Needed
Replies: 4
Views: 174

Re: Filling Console Cut-outs No Longer Needed

I suggest a much simpler solution: cover the unused cut-out with a blank panel that matches the other instrument panels. Typically the panels are aluminum, about 0.125-inch thick, are black, and often have a circumferential white stripe. You can fabricate a panel yourself with much less fuss than yo...
by jimh
Fri Nov 02, 2018 11:02 am
Forum: REPAIRS and MODIFICATIONS
Topic: Outrage Rigging Tunnel Boot
Replies: 2
Views: 93

Re: Outrage Rigging Tunnel Boot

I don't know the Boston Whaler company nomenclature for that device, but I would refer to it as a rigging tunnel boot or gasket or dam or escutcheon. Usually you see them installed around the deck opening at the rigging tunnel under the console. The shape is matched to the shape of the rigging tunne...
by jimh
Fri Nov 02, 2018 10:52 am
Forum: REPAIRS and MODIFICATIONS
Topic: 1994 Outrage 21 Fuel Tank Replacement
Replies: 6
Views: 178

Re: 1994 Outrage 21 Fuel Tank Replacement

If your overall average fuel economy is at least 3-MPG, having a fuel capacity of 125-gallons suggests you'd have a range of over 350-miles. Unless you really like to make long-distance jaunts in your 21-foot boat, a fuel endurance range of greater than 350-miles does seem rather large. As for fuel ...
by jimh
Thu Nov 01, 2018 12:37 pm
Forum: The GAM
Topic: Offshore Collision At Sea: Attessa IV and Prowler
Replies: 21
Views: 668

Re: PROWLER Not Found in ITU Database

...the following vessels must have on board a properly installed, operational Coast Guard type-approved AIS Class A device: (i) A self-propelled vessel of 65 feet or more in length, engaged in commercial service... There are some exemptions that affect that statement, particularly for fishing vesse...
by jimh
Thu Nov 01, 2018 12:07 pm
Forum: REPAIRS and MODIFICATIONS
Topic: After Impeller Change, Gear Case Always in Forward
Replies: 10
Views: 172

Re: After Impeller Change, Gear Case Always in Forward

[Is there a] link to that shop manual? Generally you have to purchase the shop manual. I don't have a link to a seller or source. Try searching. Call your local Mercury Marine dealer and ask him if the manual is still available and the price. If you plan to perform your own service and repairs on a...
by jimh
Thu Nov 01, 2018 10:26 am
Forum: REPAIRS and MODIFICATIONS
Topic: Keeping Dashboard Panel and Gauges Watertight
Replies: 11
Views: 273

Re: Keeping Dashboard Panel and Gauges Watertight

Frank--thanks for the emendation: the panel under discussion is plastic, not metal, is noted.

And very good advice on taking care with not over-tightening the mounting screws.