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Q5 Design Process Started!

Written by Webdeersign for the amazing Webdeersign BLOG

May 27, 2021

We have just begun the process of working on what we are planning will become the next line of HRD-KORE fins. This design series builds on the Q2, Q3, and 4Q designs and features a wide range of options.

Q5-500 TWIN
Q5-500 TWIN
Q5-500K TWIN
Q5-500K TWIN

The photos above show both the regular and KAHI versions of the Q5-500.

We have just begun the process of working on what we are planning will become the next line of HRD-KORE fins. This design series builds on the Q2, Q3, and 4Q designs and features a wide range of options. As part of the series, some of the fins also feature KAHI cutaways and some existing designs in the form of the PWR back fin and 4Q-500CK center fin.

Part of the vision for this series is to also leverage some of the design knowledge we have gained from our FLIP TIP fin designs, except that in this series the fins will use a more parabolic curved profile. This profile is very hard to make consistently in a custom fin but will work well in a molded fin. To do the testing of these fins we are going to manufacture a special table with the appropriate curve built into it so that we can layup custom panels from which matching fins can be cut. So custom versions of these fins will only be made for testing purposes as it would be to costly and time-consuming to make them generally available as a custom option. Although some of the templates do not have a curved profile so those can be custom-made without problems.

The full range consists of the following templates (not all of which are shown in the drawing).

  • Q5-375 TWIN
  • Q5-400 TWIN
  • Q5-425 TWIN
  • Q5-450 TWIN
  • Q5-475 TWIN
  • Q5-500 TWIN
  • Q5-500K TWIN (KAHI)
  • Q5-525 TWIN
  • Q5-525K TWIN (KAHI)
  • Q5-550 TWIN
  • Q5-600 TWIN
  • PWR-400 TWIN
  • H8-400 TWIN
  • L8-400 TWIN
Q5 Series
Q5 Series

Of course for custom fins, any of the curved profile fins can be made without the curve!

Depending on how the testing goes the curved profiles might be dropped if the gains are only marginal, we will be testing them both ways. The first template that has been made is the Q5-500 shown in the photo, these fins were made the very hard way by gluing up two panels and then profiling in the curve before being foiled (nightmare process).

The general design of these new templates is very similar to the 4Q series but with subtle differences and improvements that are geared towards making for a more versatile design that would serve a wide range of conditions and surfboard types. As with most of our recent designs, these fins feature PHAT FOILS and HOLOFOILS on the inside faces. Some of the design tweaks have been done to improve the manufacturability of the fins, in particular, the treatment of the cutaway to make it work better with FUTURES bases, which don’t lend themselves to some of our cutaway designs.

Stay tuned and we’ll see where all of this goes!

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