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Forum: General Discussion 01-18-2020, 09:08 AM
Replies: 24
Views: 712
Posted By TDunn
A whip antenna is the easiest antenna to...

A whip antenna is the easiest antenna to implement. Alternatively you could run a wire from bow to a high point then down to the stern. That would give your tuner a bit more of a workout though.
...
Forum: Electrical and Electronics & Navigation 12-27-2019, 10:35 AM
Replies: 80
Views: 3,539
Posted By TDunn
Most of the drop in lithium iron phosphate...

Most of the drop in lithium iron phosphate batteries I have seen are limited to a 100 amp discharge by their battery management system (BMS), so cranking a big diesel would require 4+ 100 Ah...
Forum: Electrical and Electronics & Navigation 12-25-2019, 08:20 AM
Replies: 80
Views: 3,539
Posted By TDunn
Charge loss of idle lead acid batteries is...

Charge loss of idle lead acid batteries is temperature dependent. The higher the temperature that faster they lose charge. My batteries sit idle for six months each year, but only lose 20-25% of...
Forum: Power Systems 12-16-2019, 10:40 AM
Replies: 51
Views: 2,403
Posted By TDunn
Submerged floats mostly happen in high current...

Submerged floats mostly happen in high current areas. You can usually avoid them by staying out of those areas when the tide is running hard. I say usually because I have snagged two trap lines in...
Forum: Power Systems 12-13-2019, 09:29 AM
Replies: 51
Views: 2,403
Posted By TDunn
Perhaps I should have put it this way. Pay...

Perhaps I should have put it this way. Pay attention to the water. If in Maine don't run on autopilot or at night and you won't have many problems. Lobster and crab traps are few and far between...
Forum: General Discussion 12-12-2019, 08:18 AM
Replies: 61
Views: 2,890
Posted By TDunn
I use a laptop with a $45 GPS puck. I have Open...

I use a laptop with a $45 GPS puck. I have Open CPN and Seaclear on the laptop. Both are freeware and use NOAA charts downloaded free. The 19" display is nice.
Forum: Power Systems 12-12-2019, 08:15 AM
Replies: 51
Views: 2,403
Posted By TDunn
25 years boating in Maine without any type of...

25 years boating in Maine without any type of line cutter and I have never had to go over the side. I have snagged two lines. Both floats were pulled under by current. A little work with the boat...
Forum: General Maintenance 12-11-2019, 09:16 AM
Replies: 42
Views: 2,393
Posted By TDunn
In my experience with gel coating an existing...

In my experience with gel coating an existing surface, the gelcoat will have to be sanded fair then buffed back to a gloss finish. That takes a LOT of hours. Also gelcoat is quite thick and is very...
Forum: Power Systems 12-08-2019, 08:58 AM
Replies: 39
Views: 1,660
Posted By TDunn
I just finished building a battery box for eight...

I just finished building a battery box for eight group 31 batteries. I made it from 1/2" exterior plywood that I nailed together. Once the box was together I put fillets of thickened epoxy on all...
Forum: General Maintenance 12-08-2019, 08:47 AM
Replies: 98
Views: 4,386
Posted By TDunn
I have a few comments about the "repair"...

I have a few comments about the "repair" suggestions you and others have made.


1) Any hull repair other than simply replacing planks with new wood must be preceded by replacing ALL rotted/soft...
Forum: General Maintenance 12-07-2019, 09:45 AM
Replies: 98
Views: 4,386
Posted By TDunn
The only good way to restore a wooden hull is to...

The only good way to restore a wooden hull is to repair the existing hull with new wood. All I can say is go over every inch of the boat inside and out to assess its condition. ALL soft/rotted wood...
Forum: General Maintenance 12-01-2019, 08:36 AM
Replies: 15
Views: 568
Posted By TDunn
You do need to sand, fair and then prime before...

You do need to sand, fair and then prime before putting a high gloss top coat on. If you don't you will end up with the crazing showing in the paint unless you prime it very heavily (several times)....
Forum: Fuel Check 11-25-2019, 08:47 AM
Replies: 53
Views: 2,500
Posted By TDunn
I have found that auto repair shops will take...

I have found that auto repair shops will take used oil. Some may charge a buck a gallon, but it is worth that to get rid of it.
Forum: General Discussion 11-06-2019, 08:33 AM
Replies: 29
Views: 1,967
Posted By TDunn
As others have said glassing over a wood hull not...

As others have said glassing over a wood hull not designed to be glassed over is normally just to get a few more years from the hull. Any deck leaks will result in the wooden part of the hull...
Forum: Power Systems 11-01-2019, 09:20 AM
Replies: 158
Views: 5,442
Posted By TDunn
If you over cranked the engine enough to back...

If you over cranked the engine enough to back water into the engine from the exhaust, you would most likely have hydrolocked the engine and the engine would not crank. It takes very little water...
Forum: Marinas, Anchorage, Harbors, Slips and Storage 10-27-2019, 07:27 AM
Replies: 37
Views: 1,890
Posted By TDunn
Fort Worden State Park is definitely not walking...

Fort Worden State Park is definitely not walking distance from the Bremerton ferry since it is in Port Townsend. You can hop a passenger only ferry to Port Orchard from Bremerton.
Forum: Boating Safety and Concerns 10-27-2019, 07:23 AM
Replies: 6
Views: 589
Posted By TDunn
Not an issue here in Maine. The only changes are...

Not an issue here in Maine. The only changes are very infrequent moves of marks. The rocks are where they always have been.
Forum: Electrical and Electronics & Navigation 10-25-2019, 05:30 PM
Replies: 52
Views: 2,593
Posted By TDunn
One consideration for lithium iron phosphate...

One consideration for lithium iron phosphate batteries is charging with your alternator. Lithium batteries can accept very high charge currents. If the batteries are low they can and will pull your...
Forum: Marinas, Anchorage, Harbors, Slips and Storage 10-25-2019, 04:59 PM
Replies: 37
Views: 1,890
Posted By TDunn
If you take the Bainbridge ferry or the Bremerton...

If you take the Bainbridge ferry or the Bremerton ferry schedule your return at or just after sunset. Coming back into the city at night is beautiful. As said the Bremerton ferry is the more scenic...
Forum: Electrical and Electronics & Navigation 10-02-2019, 08:26 AM
Replies: 13
Views: 566
Posted By TDunn
The solar array size is fine, but with solar...

The solar array size is fine, but with solar bigger is better. The batteries, on the other hand, are pretty minimal unless all he is going to run is lights. As mentioned above, he needs to work out...
Forum: Anchors and Anchoring 09-28-2019, 07:53 AM
Replies: 14
Views: 625
Posted By TDunn
Lofrans makes a two capstan manual windlass...

Lofrans makes a two capstan manual windlass (Lofrans Royal). They cost about $800. I had one for a number of years. They work fine, but you do have to switch capstans when going from rope to...
Forum: Dinghys and Smaller Boats 09-20-2019, 08:18 AM
Replies: 8
Views: 766
Posted By TDunn
I have had one of their 10' hypalon compact ribs...

I have had one of their 10' hypalon compact ribs since 2006. It is still doing fine. Mine is west marine branded but was made by zodiac.
Forum: General Maintenance 09-19-2019, 07:51 AM
Replies: 49
Views: 3,046
Posted By TDunn
It looks very slippery.

It looks very slippery.
Forum: General Discussion 09-16-2019, 09:42 AM
Replies: 29
Views: 2,667
Posted By TDunn
I bought my current boat without a survey. I did...

I bought my current boat without a survey. I did spend 3 full days going over the boat and found almost every fault that has turned up in the 12 years since I bought the boat. I do have to say that...
Forum: General Discussion 09-14-2019, 08:02 AM
Replies: 40
Views: 3,109
Posted By TDunn
My boat was built in 1936. That is one of the...

My boat was built in 1936. That is one of the reasons I bought it. I have had no problem insuring it with an agreed value policy.
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