Detailed introduction

Derating of Pump Motors at Higher Altitude

If I wanted to have the same service factor at altitude as at sea level, then I would have no choice but to chose a better motor. If that's not a derate, I don't know what is. PumpsOnly, Table II of that reference suggests that the temperature is allowed to decrease from 40 to 20 C when moving to 3000 m altitude, suggesting that ambient temp is correlated to output, not winding temperature. Get price

How Much Toilet Paper?!

Their rolls are also therefore much larger - with some rolls going up to 1250 sheets. Therefore we introduced advanced options on the site to allow for exact customization no matter where in the world you live. The origins of Toilet Paper can be dated back to 14th Get price

Is anybody actually watching the Republican convention?

2020/8/25The Forum is a free service, and much like the free content on Public Radio, we hope you will support WoodenBoat by subscribing to this fabulous magazine. To get WoodenBoat delivered to your door or computer, mobile device of choice, etc, click WB Subscriptions . Get price

Practical difference between 1725 and 3600 RPM motor w/

2012/9/6Pretty much any motor you buy will be physically capable of running at 3600 RPM because manufacturing economics mean that standardising as much as possible gives the lowest cost. The bearings, shaft, stator, etc will all be good to 3600 RPM, but in many cases, the electrical characteristics of the motor will limit the usable maximum speed to less than this. Get price

I have written a book about wooden boatbuilding and

2017/11/27Choosing the typeface, the kermel, is much easier and, in addition, you can always copy the format, the presentation of an existing book. In any case, if you go to an editor with a book in electronic format, the editor will give you a better price than if you go to it with a handwritten text and a folder full of photographs and graphics drawn on paper. Get price

Grinding Wheel Wobble

2020/5/24I've got a new 8" Ricon 1/2 hp slow speed grinder. The coarse wheel runs with very little wobble. However the fine wheel has what I believe is excessive wobble. Both have a small amount of runout that can be easily dressed out. I've tried Ricons procedure of turning Get price

Paddle Plans quick question

2012/4/5Bob is spot on with his comment. The idea is that the two 3mm will hold the curve by themselves. AJ on this forum did build some out of 2 x 4mm but carefully shaped the back face to remove the extra thickness near the edges to keep the blades looking light. Get price

Boat varnish for wooden boats

Boat Varnish to Beautify Your Brightwork. Boat Varnish, is for many owners is the favorite way to show off the natural beauty of the wood and their boat. On wooden boats I believe it is best to stick to the traditional type of oil based boat varnish. Or the natural sheen and Get price

Learning the Ropes

Learning the Ropes New to marine DIY? From online videos to hands-on instruction from experts, there are many ways to gain the knowledge needed to keep your boat shipshape. Sailing into Santorini Sailing Totem: Foraging While Cruising Bali 5.4 Boat Review August 2020 Chartering Update 5 Sailors Tell Their Stories of COVID-19 Quarantine Sailing Totem: Managing Propane Aboard Salty Dawg Fall Get price

Boat Paint for Back Yard Boa Bbuilders.

It's better to apply several thin coats, sanding between coats if left for more than 24 hours. When painting the topsides continue the over the boot stripe area and into the anti-foul area. Then apply the boot stripe over top, this will ensure that there are no gaps left. Get price

Practical difference between 1725 and 3600 RPM motor w/

2012/9/6Pretty much any motor you buy will be physically capable of running at 3600 RPM because manufacturing economics mean that standardising as much as possible gives the lowest cost. The bearings, shaft, stator, etc will all be good to 3600 RPM, but in many cases, the electrical characteristics of the motor will limit the usable maximum speed to less than this. Get price

Unisaw Bullet Motor Repair

Before that post was added to the forum thread, I first made a spring using the estimated length as noted above. The original OEM necklace is made out of an extension spring, using 3/32 .018 wire. That specific wire can be hard to find, but a very close approximation is a 1/8 .018 wire that is available from on-line sources such as McMaster-Carr (, this example was $4.00 plus Get price

What is better

2020/6/4The Forum is a free service, and much like the free content on Public Radio, we hope you will support WoodenBoat by subscribing to this fabulous magazine. To get WoodenBoat delivered to your door or computer, mobile device of choice, etc, click WB Subscriptions . Get price

Joel's Navigator Site: My dinghy cruising packing list

So much so that I haven't had much time to write about it, sorry. I've gotten my packing routine down to the point where I feel it's getting quite efficient. I always bring the same items and store them in the same place for every trip. Get price

Center of Effort vs. Center of Lateral Plane

2011/2/11I'm confused, for years I have believed that the distance the Center of the sail area is ahead of the Center of Lateral Plane is the positive lead, (giving weather helm). However, I was just reading a book that states that the Center of Effort should be behind of the Get price

Using VFD to overspeed a motor

2020/8/4HP for HP . . . an inverter duty TENV motor from Baldor will win in the freight train level of inertia contest compared to a Black Max from Marathon 08-03 -2020, 05:08 PM #24 beckerkumm View Profile View Forum Posts Cast Iron Join Date Aug 2014 Location Get price

Boat varnish for wooden boats

Boat Varnish to Beautify Your Brightwork. Boat Varnish, is for many owners is the favorite way to show off the natural beauty of the wood and their boat. On wooden boats I believe it is best to stick to the traditional type of oil based boat varnish. Or the natural sheen and Get price

Boat Paint for Back Yard Boa Bbuilders.

It's better to apply several thin coats, sanding between coats if left for more than 24 hours. When painting the topsides continue the over the boot stripe area and into the anti-foul area. Then apply the boot stripe over top, this will ensure that there are no gaps left. Get price

F/V Petrel

Based on suggestions on the WoodenBoat Forum, the solution is to inject thickened epoxy into the damaged areas. So that's the first project. Actually, the first project is to remove all of the old nails and miscellaneous fasteners from the frames in preparation for the epoxy. Get price

Help me learn about Grinding Wheels

2020/8/14I'm not an expert on wheels. I use Norton white wheels for tool steel they are 100 and 150 grit then I hand Stone the tool. Aluminum oxide won't do for carbide. I have a Baldor tool grinder with diamond wheels on it for carbide tools. Don't really use it that much. Get price

Function of stator winding RTD in a motor

Like halving it for each 8 - 10 C temperature rise. So, there is no risk that you will have flames in the motor if your delay is five or ten minutes. Especially as the winding resistance reacts instantaneously to temperature. Much faster than an RTD does. But that is Get price

Using VFD to overspeed a motor

2020/8/5An encoder is not required for a CT M750 drive (and the CT Classic application linked above doesn't use an encoder) . . . and the drive is much more compact and a much better performer than the Yaskawa drives as it uses a Rotor Flux Control algorithm for current Get price

Using VFD to overspeed a motor

2020/8/4HP for HP . . . an inverter duty TENV motor from Baldor will win in the freight train level of inertia contest compared to a Black Max from Marathon 08-03 -2020, 05:08 PM #24 beckerkumm View Profile View Forum Posts Cast Iron Join Date Aug 2014 Location Get price

Squirt

During a weekend in northern Michigan during the summer of 2009, I got a chance to take a spin in a couple of wooden boats that my daughter's boyfriend had built with his dad and his brother. The thrill of coming up on plane and hitting a few waves in an 11′ boat with a 15-hp outboard put a smile on my face that persisted. . . Get price

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