posted March 31, 2007 05:52 AM            

This photo has been cropped from one in Sid's R-06 thread. But that thread is so massive, I just had to post this favourite picture in a quick-loading thread.

That's me at the tiller and Ab pulling the strings. We are the T-crew. We sailed together at the MLTs and will be re-united at the PITs.

This is a good photo of a boat not sailing very well:

• The bow line is dragging in the St. Lawrence River.
  
• The runners are flying.
  
• The main is being backwinded by the genny.

The picture was likely snapped from one of the other 'Pipers as they walked past Sapphire. You can judge the wind by the underbelly of the leaves on shore. Why is this boat just bobbing along?

If you want a turn at speeding past this blue hull, you really should consider the Pelee Island Trials.

------------------

posted April 07, 2007 09:20 AM               

quote:

---

Originally posted by Tailpiper:
<font size=3 color="red">[b]Sapphire & The T-Crew</font> ( <== HTML is OFF in this forum)

This photo has been cropped from one in Sid's R-06 thread. But that thread is so massive, I just had to post this favourite picture in a quick-loading thread.

That's me at the tiller and Ab pulling the strings. We are the T-crew. We sailed together at the MLTs and will be re-united at the PITs.

This is a good photo of a boat not sailing very well:

• The bow line is dragging in the St. Lawrence River.
  
• The runners are flying.
  
• The main is being backwinded by the genny.

The picture was likely snapped from one of the other 'Pipers as they walked past Sapphire. You can judge the wind by the underbelly of the leaves on shore. Why is this boat just bobbing along?

If you want a turn at speeding past this blue hull, you really should consider the Pelee Island Trials.

[/B]

---

posted April 19, 2007 12:34 PM               

Just curious why/how you got a Hobie fully battened sail, and how it performs. Doesn't it give you more of a weather helm?

posted April 20, 2007 04:11 AM            

quote:

---

Originally posted by kenn:
Tailpiper,

Just curious why/how you got a Hobie fully battened sail, and how it performs. Doesn't it give you more of a weather helm?

Sure is purty...

---

Helm Balance

The little circles in the middle of the sail plans are at the centroids of each sail as calculated by AutoCad. Because Sapphire's boom has been lowered, the centroid for the Hobie sail is only 4-3/4" higher and 4-1/2" further aft than the Sandpiper sail.

On the water, the Hobie sail seems to create lee helm at low wind speed and low angles of heel. That may be because the centre of effort from the full-batten sail is a little forward of the centroid.

How & Why

Sapphire's Sandpiper sail had ripped batten pockets, duct tape patches and was 30 years old. It was time to replace it. But rather than order a new sail, I shopped for a used sail and I was interested in choosing a well known one design. A Hobie 14 sail would have fit on the Sandpiper rig, but I went for the glamour of the Hobie 16. Sapphire's mast had to be extended by 42". If doing it again, I would consider a Wayfarer or CL-16 mainsail.

Performance

I have not detected a performance gain from the bigger sail. However, Sapphire's headsails are sheeted on the cabintop, inboard of the shrouds That causes a great deal of back-winding of the main. There are some adjustments planned for this summer. I can update you later.

Sure Is Purty

Kenn, thanks a lot. I like it too.