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No, each rotor has two blades, but they can pivot individually for folded storage. Once folded, the drone is only about 7" long. Once you start the motors the blades automatically swing out and into...

I own a DJI Air2 S and a DJI Air 2. The photographic and video capabilities of both are pretty spectacular. For water use, I usually run them with a set of detachable pontoons. they fly a bit better...

Found in the ads at the bottom of the page. Just the thought of it makes your lips itch.

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https://www.youtube.com/watch?v=St6jyEFe5WM

My 13' Whaler has a simple 50 lb. thrust Minn Kota Endura Max next to the Yamaha 25 on the transom. I doubt that it is any more efficient at displacement speed under electric power than most Jon...

Can't get the photos to show up, but it sounds like it is likely fiberglass with polyester resin than fiberglass with epoxy resin. It is unusual for epoxy resin jobs to delaminate enough to let water...

Yes, poly rope would most likely work sewn to the luff, but it has very limited stretch, which might make the application a bit tricky. Normally, roping is done with Dacron, which has a certain...

You would be much better off building the batwing mainsail than trying to build a gaff sail. To start with, batwings are cut flat, saving you from trying to address all the shape issues that the sail...

Yep, the Gougeon Brothers tech staff will be much more reliable than something some guy said on the internet.

You're gonna need a bigger boat.

A couple I did a while back, just for fun.


https://studio.youtube.com/video/5E6NRFSOQkE/edit

https://www.broadjam.com/songs/toddbradshaw/loch-lomond

I'm probably "old world" when it comes to stripper building, but we used Weldwood plastic resin glue, which was a tan powder that you mixed with water to a pancake batter consistency. The thing we...

On a stripper using 1/4" thick strips the "strength" is in the fiberglass layers, not the wooden core. The function of the core is mainly to increase stiffness by separating the two fiberglass skins....

Probably unnecessary. As long as they are staggered, butt joints on that type of construction are fine stapled into nearby solid strips with 1/4" staples.

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We ride several times per week during the winter - even if there is snow on the ground. :-)

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To keep it from getting boring we can watch our videos from our favorite trail while we...

It's a combination of general wear and tear protection and keeping the leech from stretching - at which point it would start to flap or flutter badly which is really annoying. Given the option, I...

That second tack grommet is a cloth downhaul. Theoretically it allows you to increase or decrease tension on the sail's luff and flatten it a bit, or increase draft a bit as the cloth slides on the...

I did one for a guy who sailed in a pretty protected lake with light winds most of the time, so he wanted to increase the size a bit. Top of my head I don't remember by how much...maybe 10% or so....

The sail in the middle of this illustration is one of the lugsail conversions that I designed and built for a Skerry. I think it both looks and works better than the original spritsail that CLC...

That's a pretty hack way to re-cut a leech which tends to flap or "motorboat". No sailmaker worth his palm would leave a hot-cut edge bare on a sail. You would be wise to wrap a 1"-1.5" strip of...

I use the crepe sole of an old shoe to clean sandpaper. Speed matters when sanding resin as well. Back in the days when using a big disk on polyester resin we could sand with a 3450 rpm sander, When...

It really shouldn't matter, as in either case you want the jib luff as tight as possible with as little sag as possible. The jib should have been cut to allow for some sag, which is impossible to...

We know that because it didn't look like the Hindenburg when it popped. It would have been a very big fireball. I have wondered though where they get their helium, since most of it comes from Texas....

helium

I don't know whether these things are hobbies, or just the things that make up who I am. I used to play music professionally and still play, just for my own enjoyment, so I guess it's a hobby now. I...

The balloon would be at the same temp as the air it is flying in, so the detonation must be a different type.

We eventually adopted zone waxing for both fiberglass and wooden skis. The polyethylene bottoms on fiberglass skis were hot-waxed like downhill skis on the tips and tails for maximum glide, and then...

I would think it would be OK as long as you are moving it forward on the yard. Moving it aft would probably kill your luff tension on a balanced lug. Whether it is convenient to re-tie the halyard...

Ahhh... Jackrabbit Red for dry snow and Jackrabbit Green for wet snow. The green was softer and had somewhat more tar smell. Wonderful stuff. Some place up in the attic is my old wax box with full...

I still have a closet in my attic packed with probably eight pairs of cross-country skis and several pairs of downhill skis. Having been a dealer, I always had a direct line to the really good stuff....

Yeah, I guess they would be backstays. In any case, jibs are always cut to accept a certain amount of luff sag which simply can't be gotten rid of, even on Americas Cup boats, but not as much as they...

My only gripe with that one was that the luff tension in the video was pretty bad. There was an awful lot of luff sag present. Since they have shrouds, that should be fixable. Otherwise, it was a...

I can't remember whether I saw it somewhere or if it was my own Idea. Just another one of those unusual things that I never got around to trying. My old drawing program is good enough that sometimes...

I mused about a Genoa-only rig for a canoe once, but never got around to trying it. Top right drawing, though it would probably need some shrouds.

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What strikes me most is the photo showing clearly that radial corner patching doesn't set properly on cross or vertically cut sails. Sorry, but that has always been a pet peeve of mine.

Yes, it is a big deal here.

Tanbark actually ages much better cosmetically than either white or cream Dacron do. Even if it fades a bit and gets a little dirty it still looks pretty nice and kind of "fits the bill". The sail...

I found something interesting while doing the design work for a fairly tall standing lug. In order to keep the fore and aft location of the sail in the same area when the sail was reefed (to try to...

That cutter is nice, but the installation would be much stronger on Sunbrella if the holes were all hot-cut. I install twist locks cutting only the slots for the teeth, then once installed, I stick...

Low in the western sky tonight, Venus and Jupiter close together' Pretty neat!

My favorite would be a #10 Delrin tooth zipper, or a couple of them as needed to get the proper length. At the end(s) where the slider will end up when closed I sew on a piece of 1/8" leech line....

The luff tension on the jib is terrible in the posted photos.

Yes, eyelet and grommet setters are different and not interchangeable. In addition, there are two types of grommet setters. Those found in hardware stores are called washer grommets and they are of...

It is one of those things where you get what you pay for. Unlike the cheap kind that is squirted into plastic wrappers, the real deal is sliced stacked and has some body to it. For a toasted cheese...

Ring sewing does take some practice. Part of the problem is that you can't really see how well a stitch is aligned with the others until it is already done - at which point it is too late to fix it...

Ring liners have become a real problem over the years. I once complained to one of the big wholesale sailcloth and hardware distributors about the dwindling lack of available sizes in the liners and...

Assorted rifles. These levers all shoot 44-40 black powder cartridges, the original cartridge size, though they are now centerfire where those back in the day were rimfire. The same cartridge could...

Not a great idea. As you can see on the sails posted right above, the idea is to gradually build up the strength of any area where you are going to put a fastener through the Dacron. If you want to...

Standard procedure, by the way, for corner patches is to place them on the sail starting with the smallest one and ending with the largest one on top. Most of the time it's a good idea to take a...

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