Wednesday, December 1, 2021

New Asym Spinnaker Turtle Bag

New Turtle Bag for our Asym Spinnaker

An earlier post in SailingEximius explained how we were donated a spinnaker for Eximius, here's a link to that article about our Asymmetrical  Spinnaker. It did not cover the Spinnaker Bag. The one we received was not designed for the sail we were given, it was huge! About 5'6" tall and 3' in diameter. The sail was almost lost in the bottom of that huge bag and managing the bag on the deck when preparing to raise the Asym was not a pretty sight.  Time to make a new Turtle.

I had some left over Green Sunbrella and had purchased a few yards of white phifertex left over for another project. I can always do with the practice, so I made the new bag.

Design concepts: 
  • Needs to have a top that will open and be out of the way when extracting or storing the sail from/in the bag. 
  • Because the sail could get wet, the bag must have some ventilation. Only on one side so that the outboard side of the bag has no vents.
  • Must have some line holders at one end for the Tack line, Port & Stbd Clew lines and the sock mouth hoist line.
  • Must have a method to attach to the lifelines so that the bag doesn't need management while being busy with raising or lowering the sail.
  • Some rigidity along the top of the long sides would be nice to help while storing the sail into the bag
  • Must have handles on the end to ease storing or extracting the bag (it's probably going to be stored in the Aft lazarette).
Step 1: Make a drawing of the parts. Top, Bottom, Front Panel, Back Panel, End Panels (2), Line Holder Bags (One piece made all three line holder bags), Tube holder and Rim for the zipper then cut out the two pieces of Phifertex for the vent in the front panels.

Step 2: Mark up the Canvas and cut out each piece with my Hot Knife.

Step 3: Sew the Tube Holders 

Step 4: Sew the Vents onto the Inside face of the Front Panel
Cut out the fabric on the outside face of the front panel to make a 1/2" hem around the edge of the Vent hole. Sew the hems onto and through the Phifertex.

Step 5: Sew the End Panels onto the Front Panel.

Step 6: Sew the zipper to the inside of the Front Panel and the Inside of the two End panels. Sew the Rim to the top edge of the Zipper.

Step 7: Sew the Tube holders to the inside of the Front Panel just below the zipper and to the Back Panel the same height up from the bottom of the panel as the Front Panel.

Step 8: Sew the Line holders to one end, sew a piece of webbing with a snap hook for the Head of the sail at the other end.

Step 9: Sew the Top Front and sides to the Rim.

Step 10: Sew the Back to the top and two ends.

Step 11: Sew the Bottom, first to the Front, then the end without the line holders, next to the back and finally to the End with the line bags making sure not to sew through the bottom of the line bags.

Step 12: Cut the pieces of 5/8 external diam pex tubing to fit the tube holders and insert into the tubes.

All done!

The finished Turtle Bag with the Asym Spinnaker inside ad all zippered up.

The two white squares are the Phifertex vent material.

I made two vent areas rather than one in order to maintain material integrity. 

Bag is 42" long, 17" wide and 14" tall.

The three Line Bags are made from a single piece of Sunbrella and are open at both their top and bottom edges.

Each bag is 3" deep and 5" wide.

The Red line is the Port Clew line - it's 1/2" double braid line with 1/8" Dyneema from the Clew, long enough to nearly reach the Port Side.

The Green line is the Starboard Clew Line, same design as the Port Clew line.

The Red and White line is the sock Tack line.

The All white line is the Sock haul up and down line.
The inside tube holder can be seen on the right in this pic.

This is the 'Head' end of the bag. 
The black webbing has a Stainless Steel spring hook to attach to the Head of the sail which is the last part to go into the bag and the first to come out of the bag

To store the sail in the Turtle bag, the Foot of the sail (the Fiberglass funnel at the bottom end of the Sock) is put into the bag near the Line holders end.
Then the sail in it's sock, is folded several times over reaching to each end of the bag.

The Head of the sail is clipped into the bag.

Finally, the lines are stored into the Line Bags.

Now the bag is ready to be zippered up and closed.

Here's another view of the bag with the sail stowed and the lines in the Line bags.

The stiffening tube is clearly shown in this pic.

It looks cramped but there's plenty of room to store the sail.

The deciding factor on the size of the bag was the Mouth of the Sock, it's 16" wide.

The Sail actually extends beyond the mouth of the sock by about 5', I just stuff the remaining sail material into the mouth, it's in there pretty loosely.

Sporting my favorite shirt - Red Catalina Sailboat long-sleeved shirt from Catalina Yachts when we visited them at the Annapolis Boat Show in October.

This is a whole lot better to manage than the original Turtle bag and takes up less room. I'm really hoping it will fit inside the Aft Lazarette and be comparatively easy to pull out when we want to fly the Asym.

Heading down to the Boat on Friday, we'll find out  if that's where it going to live.

Getting lots of stuff done for the boat, it's about time we got her out sailing!

Hopefully we'll see you on the water.

Paul, Skipper of the Sailing Vessel Eximius.

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