Showing posts with label speed test. Show all posts
Showing posts with label speed test. Show all posts

Sunday, November 6, 2011

12'6" SUP race board speed test by Robert Stehlik

12'6 Stand Up Paddle Race board testing day

It's been a while since our unlimited board test, where I said we would soon organize a test of 12'6" and 14' boards.
My friend Scotty had two 12'6 Hobie race boards and a Bark that he wanted to comparison test.  I brought four more 12'6's for a total of 7 boards to test, which worked out perfectly as seven testers showed up bright and early on a Saturday morning (Nov. 6th, 2011) to go through the rigorous 14 laps needed to test all the boards.  Photos and specs of the individual boards are shown below.   Unfortunately there were some wind gusts that affected times of the individual runs but because each board was tested in each run, these variations in conditions should average out over the results.  Also, some of us had to run 8 rounds as someone tested the same board twice somewhere along the way, which threw everything off a little but in the end everyone toughed it out and tested all seven boards.

After posting the unlimited test results on the Standup Zone forum, I got lots of good feedback that we tried to incorporate into this test, including recording the dimensions and weights of each board tested as well as taking pictures of each board outline and profile.  The test lap is a .21 course that runs downwind one way and upwind the other way.  Each tester used each board on one downwind and one upwind run with a 1-2 minute break in between.  As we were running many laps, the instructions were to make sure to keep their energy output consistent and not use all their strength in the first few laps to avoid slowing down towards the end of the test.  We also staggered the start with 10 seconds or so between each tester to avoid the "group effect" and switched boards randomly.

If you look at the test results spreadsheet, you will see that the times for Anders, the fastest tester, were quite consistent with a relatively small spread between fastest and slowest times, compared to some of the other testers that had a bigger spread between the slowest and fastest times. Everyone in the test was a capable paddler and I wanted to have testers of different abilities to make the results more relevant for the average users.  To give equal weight to each paddlers results, I ranked each individuals results and added them up for an average ranking, resulting in a somewhat different ranking than using the total times.

I brought a 12'6" x 29" touring board that we received as a sample from a manufacturer, so I thought this would be a good occasion to test it.  We were all disappointed by it's performance in comparison to the other boards in the test and it needs some improvement.  To be fair, it was designed to be a more stable and durable touring board, vs. the lightweight (and more expensive) pure raceboards it was tested against.  It was the widest, heaviest, and slowest board in the test.

I was somewhat surprised by the good results of the 12'6" Dennis Pang board.  It was the fastest board in the flatwater test in both overall time and individual rank results. Dennis custom made this board and we designed it mainly for downwinders and surf races, with quite a bit of rocker and a relatively wide tail for stability.  The entry is not very piercing and a little splashy, so the fast times were somewhat of a surprise.  It shows that rocker does not necessarily make a board slow in flatwater and that a clean entry is not all that matters.  The wide tail and generous volume also makes this board fairly stable and user friendly, so even the less experienced paddlers got good results.

The unconventional Starboard ACE also has a somewhat splashy entry but generally works well in these kind of conditions. It takes some getting used to, which may have worked against it a little in the results.  The Everpaddle 12'6" also has a narrow tail which gives it a clean exit but also makes it less stable.  The results show that this board worked better for the experienced racers than for the less experienced ones.  Scotty's Hobie boards had a good feel and work great in downwinders according to him.  It was no surprise that they, as well as the Bark and Everpaddle boards all had good results in the test.  So, what did we learn from this test?  I'm still figuring that out but my hope is that these tests will make the next generation of boards even faster, well balanced, and user friendly.

Each tester made some notes on the boards tested after each run and I included the comments with each board.  They are from seven individuals, so some may seem contradictory at times.  I hope some of you can add your thoughts by making comments below, feedback is always welcome and encouraged.

Link to results spreadsheet



The test team: Denis, Rob, Alex, Scotty, Anders, Dr. Dan, Lokelani


The seven boards we tested (subjective rider comments as recorded after each run)

12'6" x 27" x 6" Everpaddle custom
weight: 25.75 lbs
rider comments:
smooth, tippy, low rocker
stable but not heavy, glides well, quick on start
comfortable
great upwind, stable and fast
tippy, paddles straight
rolly, a bit heavy





12'6" x 27" x 9" Starboard Ace 2011
weight: 30.5 lbs
rider comments:
Bouncy
tippy, smooth, glide
sluggish feel, noisy, stable
good all around but harder to steer upwind
feels like it pushes a lot of water
buoyant and bouncy
clean water exit off tail






12'6" x 28.75" x 6.6" Hobie Bamboo Elite 2012
28 lbs.
rider comments:
good feel, narrow stance
thick from middle to tail, slower than expected
feels like it drags more than other Hobie
downwind good, upwind more drift
stable, good upwind
like the feel




12'6" x 27.75" x 6.6" Hobie Elite Race 2011
weight: 27 lbs
rider comments:
Like the feel
little tippy, good glide
glides well, stable
downwind good, upwind harder to steer
fast off the line
entry feels good, narrow stance



12'6" x 29" x 6" Blue Planet touring
weight: 33.25 lbs
rider comments:
needs work
heavy, stable, slow start, glides well, tracks well upwind
hard to being up to speed, maintain speed
Heavy, no play in board
heavy, stable


12'6" x 27.75" x 6.25" Dennis Pang custom
weight: 24.5 lbs
rider comments:
fast, good rocker
light, tippy, very fast on start, felt like it pushed water instead of cut & glide
light, easy to bring up to speed
Like it! very stable, tracks & glides well
less tracking, light, fast
tippy, glides well, good upwind
light, splashes a lot



12'6" x 27.75" x 6.25" Bark custom
weight: 25.5 lbs
rider comments:
good glide
light, fast, tippy
upwind hard to control
pretty stable, cut through wind well
faster than I expected
tracks well



Link to results spreadsheet


Many thanks to our volunteer test team:
Anders

Lokelani

Alex

Scotty

Denis

Dr. Dan

The photos below were taken by Alex Nix, who also made my cool new custom made double bend paddle in the pictures.
























Here is a short video with headcam footage taken at the test:


Aloha, Robert Stehlik

www.blueplanetsurf.com

Saturday, July 23, 2011

Flatwater SUP speed test: the fastest unlimited Stand Up Boards

Last week Evan Leong and I had a chance to test Mark Raaphorst's S-16 Standamaran prototype that he was shipping to New York for a race with a stopover on Oahu.  I have been wanting to organize a speed test for SUP race boards for a while, so this was a good opportunity to comparison test unlimited boards in flatwater conditions.  Please check the spreadsheet for detailed results and watch the video for more information on the test.  Next up will be speed tests for 14' race boards and 12'6" race boards.  For manufacturers, please contact me if you have a board you would want to have included in future tests.

The S-16 standamaran came in a big wooden crate.
It looks like something Batman would paddle if he was into SUP, although his would probably be all black.




Flatwater speed comparison test of these 6 unlimited SUP race boards:


Listed in order from fastest to slowest in test results:

18' x 25" Ohana
17'6" x 25 1/8" Dennis Pang
16' x 28.5" Standamaran SIC S-16
17'4" x 26 1/2" SIC Bullet
18' x 26"   Bark
17' x 26 3/4" Naish Glide


distance .21 miles, 
Est. wind speed= 5 to 15 knots


test pilots:
Jared Vargas
Anders Jonsson
Robert Stehlik

For the spreadsheet with test results, click on this link:
Please watch the video with voiceover for more information on the test




Related posts:
Is lighter really faster? Weight comparison test
Unlimited race board comparison- planing vs. displacement hulls
See the discussion of this test on the Standupzone

Notes:
I realize more runs are needed to get meaningful data.  We will also try to include more data, like board weight, price (I like the idea of speed per $), board photos from different perspectives (outline, rockerline) in future tests.  We originally planned to do two rounds of testing but ran out of steam after doing 12 sprints, so it will help to have more paddlers next time.

Run 1 times were with the wind and Run 2 times are going back upwind, so that's why Run 2 times are slower.

Regarding which boards we are used to, these boards are usually used/ owned by:
Jared: Ohana
Anders: Bark
Robert: Pang

Here are some of my thoughts:
I expected the standamaran to do well upwind with the smooth entry but in the test it did not compare well in the upwind legs.  Why?  I'm not sure but my theory is that the wakes coming from both tips and intersecting at the center of the board create a wave that adds drag at higher speeds and limits the top speed.  Going into the wind the small chops might exaggerate  this effect.  I'm not sure though, just a theory.
At normal speeds (not sprinting)  the standamaran seems to have very low friction and it takes very little to maintain a speed of around 5 mph.

All the boards have pros and cons and which board will be fastest depends on the paddler and the conditions.   So why were some boards faster than others?  There are so many variables and to try narrow it down to just the width is just not realistic even if the numbers seem to indicate that.  I have tested two 12'6 prototypes with identical length and width with the main difference being the rocker and entry and the board with more rocker was actually faster and had a cleaner entry.   Regarding length, I know that most 14' boards are significantly faster than most 12'6 boards and that most unlimited boards are faster than 14' boards but at some point (over 16' it seems to me) adding more length does not always translate into more speed.
Shaping a fast race board is more art than science, I think.
Paddler weight is important too, as the same board will have a different entry and exit depending on the weight of the rider, so the rocker line and volume have to match the rider weight

I also want to stress that this was a flatwater test that only compares speed in very limited conditions.  In open ocean races many other factors come in, including stability and I just want to point out that the 17' Naish board, which came in slowest in our test has a great track record with many wins in downwind races.

Aloha, Robert Stehlik


www.blueplanetsurf.com