Winter Modifications

[Carson Downing]

Went a little crazy this winter and added a full spinnaker launch system(under deck). Uses a pump system on the halyard. More pictures to come. Hull #153

[derek mckesson]

Where did you get deck fitting?

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[Carson Downing]

Made it from fiberglass. I used foam as a mold and laid fiberglass onto it, then laminated a flange on top of the deck to get the curve right. After it was all glassed I filled, faired it down, and sprayed with Gel-Kote. It was a long and tedious process..

[Five Cubed Skipper]

Wow! This is an awesome concept- especially for single handing. It looks good!  Have you got a drain in it?  (We get a bunch of chop over the bow in the wavy[powerboat churned] Chesapeake...)

-Brian

#125

[Carson Downing]

It self drains into the cockpit. There is about a 6 foot lexan tube that runs all the way back to the cockpit, where there is another opening behind where the original spinnaker bag used to be.

[derek mckesson]

Exactly what I wanted to do on 157, when I cut porthole, looked like too many bulkheads to run tube, how did you get through them. And can you make another? Will buy from ya!

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[outoftheoffice]

This looks amazing!  I'm still new to the J18s but I'm convinced that this modifications is probably one of the best things you could do to the boat.  Thanks for sharing and showing some great photos.  Looking forward to hearing more about it and the install.  I'm with ortega - could you possibly make another??  I would gladly buy one!

[Carson Downing]

The tube isn't straight, I had to make two joints for it to curve through the bulkhead openings.

I would consider making more further down the road after testing.

[derek mckesson]

Every j in the country will want one! Sell it as a kit, home run!

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> On Mar 31, 2016, at 6:35 PM, Carson Downing <cars...@gmail.com> wrote:
>
> The tube isn't straight, I had to make two joints for it to curve through the bulkhead openings.
>
> I would consider making more further down the road after testing.
>

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[Rick Paullin]

Wow, that looks great -- and it looks like a crazy amount of work!

How far back into the cockpit does the sail go when it's down?  Will you attach a retrieval line to the middle of the chute?

Very nice professional job!

  - Rick

[derek mckesson]

It should have two retrieval patches on sail and launch and douse just like 29er, would be so slick!

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[Carson Downing]

Yes, there are two retrieval patches on the spinnaker. The retrieval line runs back to a 3:1 reverse purchase system which pulls the chute in a tad bit quicker. The chute sticks out about a foot into the cockpit when it is in the tube. I still have yet to try the system on the water, planning on doing some tweaking this weekend.

On Friday, April 1, 2016 at 1:46:49 PM UTC-5, ortegakid wrote:

It should have two retrieval patches on sail and launch and douse just like 29er, would be so slick!

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On Apr 1, 2016, at 1:14 PM, Rick Paullin <rick.p...@gmail.com> wrote:

Wow, that looks great -- and it looks like a crazy amount of work!

How far back into the cockpit does the sail go when it's down?  Will you attach a retrieval line to the middle of the chute?

Very nice professional job!

  - Rick

On Thursday, March 31, 2016 at 12:08:21 PM UTC-4, Carson Downing wrote:

Went a little crazy this winter and added a full spinnaker launch system(under deck). Uses a pump system on the halyard. More pictures to come. Hull #153

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[Carson Downing]

Well I tested it out this weekend.. The spinnaker seems to pull in too hard, either because of the bend in the tube, or the tube diameter is too small (6'').

Thinking the tube needs to be bigger and straight, which would mean cutting into bulkheads. The front one would be easy to re-glass, but the middle bulkhead would not be fun.

Any thoughts?

[derek mckesson]

You might need only one take down patch so kite is skinny in tube, we fly a 23.5 sq mtr kite on our AC's, but we have a sock attached to the open tube which goes all the way to transom. Bulkhead was the reason I never did it on mine. Only way I saw was slice deck open!

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[Rick Paullin]

That suggestion of one take-down patch sounds from ortegakid sounds like it would definitely help.

Have you thought about investing in some McLube SailKote?  Like maybe a gallon of it?  That would make the chute slicker than $&!# on its way down the tube.

I remember reading about the Team McLube 49er several years ago during their first Olympic campaign -- they would apply it to all the sails before every regatta.  Of course it helps when you're not paying $150 for a gallon of the stuff!

  - Rick

[derek mckesson]

Mclube! Big time! and Holmenkol the kite, makes all the diff

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[derek mckesson]

 

 

---

Date: Wed, 6 Apr 2016 21:20:56 -0700
From: rick.p...@gmail.com
To: johnson-18...@googlegroups.com
Subject: Re: [johnson-18] Re: Winter Modifications

That suggestion of one take-down patch sounds from ortegakid sounds like it would definitely help.

Have you thought about investing in some McLube SailKote?  Like maybe a gallon of it?  That would make the chute slicker than $&!# on its way down the tube.

I remember reading about the Team McLube 49er several years ago during their first Olympic campaign -- they would apply it to all the sails before every regatta.  Of course it helps when you're not paying $150 for a gallon of the stuff!

  - Rick

On Wednesday, April 6, 2016 at 12:53:24 AM UTC-4, Carson Downing wrote:

Well I tested it out this weekend.. The spinnaker seems to pull in too hard, either because of the bend in the tube, or the tube diameter is too small (6'').Thinking the tube needs to be bigger and straight, which would mean cutting into bulkheads. The front one would be easy to re-glass, but the middle bulkhead would not be fun.
Any thoughts?

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[Carson Downing]

Single patch in the center works great. Gave it a try on the water yesterday. Was blowing about 15-20, and it worked flawless. now I just need to make a sock for the cockpit. We hit 16.1 knots downwind 😀

[derek mckesson]

Awesome!

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> On Apr 18, 2016, at 8:36 AM, Carson Downing <cars...@gmail.com> wrote:
>
> Single patch in the center works great. Gave it a try on the water yesterday. Was blowing about 15-20, and it worked flawless. now I just need to make a sock for the cockpit. We hit 16.1 knots downwind 😀
>

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[Carson Downing]

[Carson Downing]

What do you guys think of Dacron for the sock in the cockpit? Would another fabric be better?

[derek mckesson]

Sunbrella, only thing to make it out of, can send pix if need

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> On Apr 21, 2016, at 7:22 PM, Carson Downing <cars...@gmail.com> wrote:
>
> What do you guys think of Dacron for the sock in the cockpit? Would another fabric be better?
>

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[Rick Paullin]

Definitely Sunbrella if your boat sits in the sun on the trailer.  But it would definitely add some friction to pulling in the kite.

I'd probably go with something more slippery if you cover your boat.  Something like the fabric used for kites or light raingear -- maybe nylon.

Nice job so far -- it looks really, really good!

  - Rick

[derek mckesson]

I disagree, sunbrella is much slippery, especially when mclubed. I have tried everything, all they way back to my FD days and know,look at a 29'er sock, you'll see.

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[Rick Paullin]

Gotcha.  Whenever I hear about Sunbrella, it's used for boat covers and hiking straps.  So I was thinking it's like a canvas texture.  Are you saying it's more like a slippery nylon or polyester?  In that case, it sounds like it would work well.

[Carson Downing]

Gonna try gray Sunbrella, that way it will blend in with the cockpit nice.

Had an amazing sail today, added another trapeze for dual traps! Was gusting to 35 and hit 11 knots to windward and 18 knots downwind!! This boat should have come from the factory with a trapeze, it completely transforms the boat.

Carson

[derek mckesson]

Yea, like very porous plastic canvas, like what a lawn chair is made of, will send pix

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[derek mckesson]

That's what I did also, with wifey and I out, was just heaven!

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[derek mckesson]

Now if you had a modern sguare top full batten main, boat would be 2016!


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> On Apr 24, 2016, at 10:30 PM, Carson Downing <cars...@gmail.com> wrote:
>

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[Rick Paullin]

Nice job -- I like the dual traps!

The J-18 prototype actually did have a trap and a taller mast, along with an option for dual rudders.  I heard that the JBW factory guys took it out and thought it was too overpowered for their target market, so they chopped 4 feet off the mast and ditched the trapeze...   Too bad, cause that would have been a very fun ride.

  - Rick

[Carson Downing]

I've actually thought about adding dual rudders to help the stall/cavitation issue. It would really clutter up the nice clean open stern though..

[Rick Paullin]

I agree.  But the original design did look pretty clean.  The CAD drawing is in the last photo here:

http://www.rodgermartindesign.com/portfolio/johnson-18-2/

Of course, Rodger Martin didn't actually show the dual rudder posts in that drawing, but I imagine they could have been tied into the sides of the hull pretty easily.  The transom would definitely be more cluttered than it is now, but the performance at speed would totally be worth it!

  - Rick

[outoftheoffice]

Glad to hear it's working much better now.  Loving the photos, too; please continue to post more as you refine the design.  It looks like a lot of the sail is pulled back into the cockpit, even with a sock I'd think that might impact crew (and even maybe skipper) moving around or hiking.  Have you noticed any issue with so much of the spin pulled back into the cockpit?  would a different retrieval system or maybe some kind of sock with a stopper or something be able to contain the spin more in it's original location?

[Carson Downing]

On Tuesday, April 26, 2016 at 2:17:48 PM UTC-5, outoftheoffice wrote:
> Glad to hear it's working much better now.  Loving the photos, too; please continue to post more as you refine the design.  It looks like a lot of the sail is pulled back into the cockpit, even with a sock I'd think that might impact crew (and even maybe skipper) moving around or hiking.  Have you noticed any issue with so much of the spin pulled back into the cockpit?  would a different retrieval system or maybe some kind of sock with a stopper or something be able to contain the spin more in it's original location?

The spinnaker is definitely there, but it is manageable and the sock will contain it much better. The added lines are more of a nuisance. This thing is starting to turn into a big 470.

[Carson Downing]

Planning on redesigning the retrieval tube. The spinnaker needs 2 patches. It is too inefficient with just 1. By the time the patch gets to the retrieval hole, the bottom of the spinnaker is already in the water.

Going to make some long and wide rigid battens to put on the sides for protection of the bulkheads, then put a fabric sock in the middle to replace the tube. Should gain almost twice the area.

[derek mckesson]

Like it, post pix when done and advise when you are ready to make and sell another kit

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> On Jun 21, 2016, at 5:03 PM, Carson Downing <cars...@gmail.com> wrote:
>
> Planning on redesigning the retrieval tube. The spinnaker needs 2 patches. It is too inefficient with just 1. By the time the patch gets to the retrieval hole, the bottom of the spinnaker is already in the water.
>
> Going to make some long and wide rigid battens to put on the sides for protection of the bulkheads, then put a fabric sock in the middle to replace the tube. Should gain almost twice the area.
>

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[Rick Paullin]

Sounds like it will work well. Will the fabric/battens be waterproof?

I'm concerned because I turtled last summer and took on a LOT of water into the hull through a relatively small hole in the spin pole tube. The fabric tube will have a much larger area.

[Carson Downing]

Yes it definitely will be waterproof, I get a lot of spray down the tube and the occasional bow snuff lets a lot of water in.

[Michael Parker]

On Thursday, March 31, 2016 at 9:08:21 AM UTC-7, Carson Downing wrote:

Went a little crazy this winter and added a full spinnaker launch system(under deck). Uses a pump system on the halyard. More pictures to come. Hull #153

This is exactly what I was looking for before I buy in.  My old Viper 640 you had to have 2 knots in the retrieval line - so the sail bunched up in two places vs one big ball. 

[Carson Downing]

Attached a GoPro to the end of the bowsprit this weekend and got some pretty fun footage.

https://www.youtube.com/watch?v=6KMjgY7YsbY

On a side note, I am in the process of redoing the spinnaker launcher. Will be cutting through the bulkheads to make the tube straight and wider!

Carson

On Thursday, March 31, 2016 at 11:08:21 AM UTC-5, Carson Downing wrote:

Went a little crazy this winter and added a full spinnaker launch system(under deck). Uses a pump system on the halyard. More pictures to come. Hull #153

[Maxwell Ballenger]

Sweet video! The trapeze looks like a blast. Where's the footage of the spinnaker launch tube in use?

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[Carson Downing]

The launch still isn't pretty, which is why I haven't uploaded video yet haha.

Picture of the old scoop and tube out.

[Carson Downing]

New scoop is almost ready for Gel. Opening is 9" compared to the old one at 6.5". Also added a stainless rod so the retrieval line won't chew it up!

[Rick Paullin]

Nice job on the glass layup!

I like the stainless rod idea too.

Are you still going with a fabric tube and battens?  Did you have to modify the bulkheads at all?

[Carson Downing]

Using a Mylar fabric tube. The bulkheads had to be cut, I ended up making fiberglass rings to glass in around the bulkheads to make room for the tube. I'll upload more pictures tonight!

[Carson Downing]

The scoop is done! Got it all sprayed with Gel and the stainless rod epoxied in. Also included some photos of the mylar I will be using with the tube. 

I got the ring epoxied onto the bulkhead tonight. I ended up laminated some fiberglass for the rings and used end grain balsa for filler in between. Should be super strong, I used epoxy thickened with silica. Everything inside the ring will get cut out.

[Five Cubed Skipper]

Awesome! seems like your trials will get you some better results! looks like a very nice enhancement.

[Rick Paullin]

Looking good so far -- I like the way you built the scoop.  It's amazing how good the fresh gelcoat looks.

Is the ring laid up with both glass and epoxy on both sides of the bulkhead?  Have you added the balsa wood blocks yet?

Just make sure you cover that ring with a lot of glass -- the bulkhead will be transferring some big loads to the ring when the bow goes through waves!

On the lower section of the ring, have you considered adding some stainless strapping?

(to span the area where there's an open section of bulkhead about 7" long below the ring)

The strap could be bolted to the bulkhead or added to your layup inside the ring when you cut out the bulkhead.

I'm concerned because you're replacing the vertical part of the bulkhead with a much smaller cross-section ring.

You're probably okay at the top, but the stress concentration where the ring meets the bottom bulkhead is gonna be huge.

You're also changing a vertical load to a bending moment there, which is going to be really tough on the epoxy and the glass ring.

 

[Carson Downing]

I got to thinking about this last night as well. 

So there are two fiberglass rings, one on each side of the bulkhead, with end grain balsa in between the open parts of the bulkhead. Where the rings overlap the existing bulkhead, there is no balsa, it is just epoxied straight to it. Each ring itself is about 6 layers of glass.

I suppose I could add some fiberglass plates to the right and bottom of the ring just as a precaution. Wouldn't hurt anything.

The existing bulkheads are actually foam with one layer of glass on each side.

[Carson Downing]

Cut out the bulkhead last night, the ring is strong. Way stronger and stiffer than the existing bulkheads, so I think it will be fine. Plus, the hull and deck are cored in this area.  Just one more bulkhead to cut and I have a straight shot to the cockpit!

[Rick Paullin]

Sounds good -- I didn't realize the rings were 6 layers -- you should be okay.

I'd still look at the epoxy on the bottom again though, unless I'm not seeing it in the photos.  Do you have enough overlap between the ring and the bulkhead at the bottom?

I can't believe all the work you've done on this so far -- nice job! 

[Carson Downing]

The bulkhead is sandwiched in between the rings. There's about an inch overlap. I'm going to add some glass over this ring since I can reach it. I'm unable to rich the second ring in the middle, so it will just get epoxied on.

I test fit the tube last night and it fits! Getting excited to test this thing out!

[Carson Downing]

Here are some photos of the tube. This thing has plenty of room!

[Carson Downing]

All done! Hopefully testing it out tomorrow.

[Carson Downing]

Here is video of the first test on the trailer. It seems to work extremely well compared to the first design. I was able to pull in 3 patches at once, compared to the old tube that could only pull in 1 patch. Sea trial tomorrow!

https://www.youtube.com/watch?v=oT621ij6yAE&feature=youtu.be

[Carson Downing]

On the water test went well. The halyard got caught the first time we tried it, but once released it pulled right into the tube. The second time we tried to pull it in on the wrong side and the retrieval patch got caught on the jib. So the chute went completely in the water and it still pulled into the tube!

Hopefully testing more this weekend.

[derek mckesson]

Make sure you mclube the heck out of the tube, and holmenkol the kite! Makes so much better, even when wet

Sent from my iPhone

On Oct 19, 2017, at 8:11 AM, Carson Downing <cars...@gmail.com> wrote:

On the water test went well. The halyard got caught the first time we tried it, but once released it pulled right into the tube. The second time we tried to pull it in on the wrong side and the retrieval patch got caught on the jib. So the chute went completely in the water and it still pulled into the tube!

Hopefully testing more this weekend.

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[Carson Downing]

Where do you get the holmenkol? I thought they were only selling it in large quantities now.

[derek mckesson]

From Uk, on eBay

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On Oct 19, 2017, at 3:52 PM, Carson Downing <cars...@gmail.com> wrote:

Where do you get the holmenkol? I thought they were only selling it in large quantities now.

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[Carson Downing]

Well I contacted holmenkol and they are no longer manufacturing SealnGlide. I read on some other forums that Nikwax can be used for similar results, so I may give that a try. Some people have even tried mixing silicone with turpentine and spraying it on the sail...

Testing went pretty well this weekend, the takedowns are going to take a lot of practice to get them just right, but it works! Going to add a continuous halyard and retrieval system like the Viper 640's have to help with the halyard going too fast.

If the Chute gets wet, it is like 10x harder to pull in, so hoping the Nikwax will give it some water repellancy, and I'll Mclube the tube.

Will try to get some video of it here in the next few weeks!

[Rick Paullin]

Nice job!  I'm glad it works.

You could also try McLube Sailkote on the kite (but it's not cheap...)

[derek mckesson]

I WILL FIND OUT WHERE I GOT MINE, IS ALMOST MANDATORY FOR OUR SYSTEMS.

---

From: johnson-18...@googlegroups.com <johnson-18...@googlegroups.com> on behalf of Rick Paullin <rick.p...@gmail.com>
Sent: Wednesday, October 25, 2017 11:36 AM
To: Johnson 18 One Design -2017
Subject: Re: [johnson-18] Re: Winter Modifications

 

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[Carson Downing]

Got some footage today of the tube in action. This was done singlehanded, so the hoist and retrieval isn't as fast as with two people. Also need to move around the patches a little bit, as the tack gets pulled in too far, and the head doesn't get pulled in quite enough.

https://www.youtube.com/watch?v=U5QK9TzgdAg&feature=youtu.be

[derek mckesson]

Yes, patch needs relocate and tack could be shorter. IMHO, looks great!

Sent from my iPhone

On Oct 28, 2017, at 7:31 PM, Carson Downing <cars...@gmail.com> wrote:

Got some footage today of the tube in action. This was done singlehanded, so the hoist and retrieval isn't as fast as with two people. Also need to move around the patches a little bit, as the tack gets pulled in too far, and the head doesn't get pulled in quite enough.

https://www.youtube.com/watch?v=U5QK9TzgdAg&feature=youtu.be

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[Carson Downing]

Ended up messing with where the knot goes in the retrieval line, and got it so everything flies in at the perfect length. Also tested the system yesterday in 10-20 and it worked flawlessly. I haven't even Mclube'd the tube or the Kite yet!

[derek mckesson]

Still finding sealnglide source for ya!

Sent from my iPhone

On Nov 6, 2017, at 6:44 PM, Carson Downing <cars...@gmail.com> wrote:

Ended up messing with where the knot goes in the retrieval line, and got it so everything flies in at the perfect length. Also tested the system yesterday in 10-20 and it worked flawlessly. I haven't even Mclube'd the tube or the Kite yet!

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[Carson Downing]

Well, I ordered a custom Mainsail and Spinnaker from North.

Got a 25% fathead Tri-Radial Nordac Main with a reef point for heavy air. They re-designed the standard One-design spinnaker to an updated shape (A2 Asymmetrical) and I got it upgraded to Dynakote cloth, which is a silicone coated spinnaker cloth. Should be great for the snuffer tube. Supposed to receive them at the end of march!

Carson

On Thursday, March 31, 2016 at 11:08:21 AM UTC-5, Carson Downing wrote:

Went a little crazy this winter and added a full spinnaker launch system(under deck). Uses a pump system on the halyard. More pictures to come. Hull #153

[Carson Downing]

New continuous spinnaker halyard/retrieval route. It auto launches the pole(same as current system) and makes the spinnaker halyard and retrieval line continuous. It also allows the crew to hoist and douse the kite, which will be great for racing.

Carson

[Carson Downing]

New halyard system is installed! Sails will be here next week, and the Nacra rudder is on order. Hurry up summer!

[Carson Downing]

New spinnaker arrived. Looking sweet! 

[Carson Downing]

New Main is here, and it's AWESOME.

[derek mckesson]

Love it! Like it should have had!

Sent from my iPhone

On Apr 10, 2018, at 11:02 PM, Carson Downing <cars...@gmail.com> wrote:

New Main is here, and it's AWESOME.

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[Carson Downing]

Here is some more footage of the spinnaker tube in action. It is working great, still haven't put any McLube on the tube either.

https://youtu.be/ouqQpva5Mdk

On a side note, I have been racing PHRF here locally and have been having a pretty good time, my local club has been very accomodating even though the Johnson isn't a PHRF boat. There is a fareast 26R (Rates a 120) here that I seem to be scratch with in light air. They just converted my rating from Portsmouth and gave me a 188 PHRF. It will most likely get changed next year to a more suitable rating.

Carson

[Five Cubed Skipper]

We PHRF rate 183 on the Severn River in Round Bay Sailing Association.  We need 6-8 knots to legitimately sail up to that rating v. the displacement boats. If we get more breeze than that we do better!  It's actually pretty even overall,  sailing all season from late April to early October, since the conditions even out over the course of the season.  Clear air is crucial on light air nights, plus getting the weight out of the boat...driver needs to sit forward of the trav. when possible up and down wind.

-Brian #125

[George Heintz]

How long did the tube end up being?  How did you position the retrieval line patches? Sorry if I am asking repeat questions.  New to boat and thread!

[Carson Downing]

I think the tube was around 6' in length, I can measure the exact distance later. The retrieval patches are positioned according to the sketch.

[George Heintz]

Thanks much.  Just getting started in the J18. Was wondering if it would be possible to retrieve into a tube starting aft from the spin bag?  Afraid to cut a hole at least yet.   Guess the issues would be interference with the crew in the cockpit and maybe not having a long enough purchase for the retrieval line.  

Regards,

George Heintz
Citation X Pilot

XOJET, Inc. 
office 1.916.285.4888
mobile 1.916.335.1073
email ghe...@xojet.com

On Oct 4, 2018, at 10:02 AM, Carson Downing <cars...@gmail.com> wrote:

I think the tube was around 6' in length, I can measure the exact distance later. The retrieval patches are positioned according to the sketch.

<IMG_0861.JPG>

On Monday, October 1, 2018 at 3:38:06 PM UTC-5, George Heintz wrote:

How long did the tube end up being?  How did you position the retrieval line patches? Sorry if I am asking repeat questions.  New to boat and thread!

On Friday, October 13, 2017 at 6:11:12 PM UTC-7, Carson Downing wrote:

Here are some photos of the tube. This thing has plenty of room!

On Friday, October 13, 2017 at 10:55:59 AM UTC-5, Carson Downing wrote:

The bulkhead is sandwiched in between the rings. There's about an inch overlap. I'm going to add some glass over this ring since I can reach it. I'm unable to rich the second ring in the middle, so it will just get epoxied on.

I test fit the tube last night and it fits! Getting excited to test this thing out!

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<IMG_0861.JPG>

[Carson Downing]

I doubt that would work, mine pulls back to about the traveler in the cockpit, and runs all the way up to the bow.

[George Heintz]

That’s what I thought.  Thanks. 

George Heintz
Citation X Pilot

XOJET, Inc.  
office 1.916.285.4888
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On Oct 5, 2018, at 11:54 AM, Carson Downing <cars...@gmail.com> wrote:

I doubt that would work, mine pulls back to about the traveler in the cockpit, and runs all the way up to the bow.

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[derek mckesson]

I made one out of sunbrella and used it on the deck, had a big stiff loop on mouth, to which I attached a line so could make stand up. Worked good, only got in way of jib a little. If I had kept 157, would def do tune, so much better, hell Flying Dutchman had them in 1957! See Laser 2 pages, lots of pix and descriptions on there.

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[George Heintz]

Thanks much. I have seen some of the Laser pictures.  If you happen to have any pictures of the retrieval line arrangement that would be interesting. 

Appreciate how much info is shared here. 

Regards,

George Heintz
Citation X Pilot

XOJET, Inc.  
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[derek mckesson]

Is just like 29’er, see their page

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[Carson Downing]

Picked up some new Hiking straps. They are meant for a Finn Sailboat, but they specs are almost perfect for the Johnson. Build quality is fantastic, they have a nice grippy bottom.

Can someone post some photos of how their adjustable straps are setup? The previous owner must have taken the clamcleats off the hiking straps. I've done just fine without them, do you guys like them or are they a pain?

Carson

[Rick Paullin]

Personally, I like being able to adjust the straps.  Also, several different people crew for me, and they all seem to like a different length.

I don't have a photo of the straps/cleats, but the attachment setup is pretty simple on my boat.  The skipper and crew straps cross over each other under the traveler, where they are both tied with short lines (about 6").  The opposite end of each strap has a line tied with a bolen on the grommet, and the line then goes to the clam cleats.  Each of the four clam cleats is attached to the deck with a shackle.  The line from the strap goes through the pulley in the clam cleat, leads back through the grommet in the strap, and then back through the cleat.  So the advantage is 3:1 on the adjustment line.

It's helpful to attach the shackles so the clam cleats face outboard for ease of adjustment from the rail.  (pretty obvious, but I thought it might be worth mentioning)

  - Rick

[Carson Downing]

So the front line of the skipper's hiking strap goes to the eyestrap in front of the traveler, then the crew strap connects to the eye strap behind the traveler, with the clamcleats at the outside ends?

[Five Cubed Skipper]

Yup.  You typically want to set the length when you start sailing based on the crew you've got. but crossing them, is the way that they were originally rigged. also there used to be a bungee that ran along the traveller and through both fore straps (and aft straps).  The replacement straps I got from masthead just had tabs sewn onto the webbing that I run the bungee through. now. Here's a shot that sort of shows them... the bungee isn't run correctly so you can see the port forward strap is laying in the sole and not raised for easily getting your foot under: