Tech fin comparison head to head OMS Slipstream vs Apeks RK3 HD
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- Опубликовано: 9 июл 2023
- Episode 5, the head to head comparison of the OMS Slipstream vs RK3 HD fins.
Down and dirty of it, the Apeks out perform the OMS fins hands down, less expensive, more propulsion, less effort, proper hardware standard equipment.
OMS did have better small maneuvering and back kick characteristics. OMS comes in far more color variants for gear matching and personalized look.
Either fin makes for a great tech fin and would not shy away from purchasing either. However for comparison sakes. The RK3 HD takes the win in this bout.
RK3 HD
Foot pocket Open heel design
Fin Material Thermoplastic Rubber
Weight (pair) Medium Spring Straps - 5.25 lbsLarge w/ Spring Straps - 6.25 lbsSuper w/ Spring Straps - 6.75 lbsBuoyancy All Sizes with Spring Strap - Slightly Negative
.4 lbs per fin negative in water
Total length 21 1/2”
Paddle length 11”
Paddle width 9 1/4”
Foot pocket 10”
sea2seascuba.com
OMS Slipstream
Open heel Spring Heel Straps
Made with Monoprene
L = 2.25 lbs with Spring Heel / 4.5 lbs pairXL = 2.55 lbs with Spring Heel / 5.1 lbs pairXXL = 2.95 lbs with Spring Heel / 5.9 lbs pair
XL dimensions
Overall length 22 1/16”
Paddle length 13 1/4”
Paddle width 9 7/8”
Foot pocket 8 3/4”
Side rail 2 1/8”
Negative .4 lbs single fin
www.ohanadiveco.com
sea2seascuba.com
www.paragondivestore.com 
Развлечения
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Good information, but video showing technique and comparisons would be nice. Also, a spreadsheet graphic showing your results would have been a great benefit over your hands slapping the fins constantly 😂
Noted!
@cyborgpirate5882 with all the side by side comparisons that you've done, it would be nifty to have you compare them all against each other. You are a well of knowledge. you just need to bring some buckets up to share with the community 😉
Great job! I'm curious about your thoughts on the Fourth Element Tech Fin.
Nice work with everything.
Thank you my friend. I haven’t tried it. I will do some research on them. Right now I am still testing the scubapro jet fins. I will be doing a review on them and then a head to head with the deep 6 eddy’s
I get that you're comparing these two fins because they are both commonly used for diving... But they are not truly "comparable" fins, as one is specifically designed for diving, while the other is specifically designed for surface swimming, and not for diving (despite being used primarily by divers for diving).
The RK3 was not designed for diving. However the RK3 HD was. It was designed for diving because of the popularity of the RK3 amongst scuba divers.
@@cyborgpirate5882 Not at all. Both the standard RK3's and the RK3 HD's are exactly the same fin. The only difference between the two is the "density" of the rubber compound used. The standard version is "less dense", and as such, more pliable and they float, while the HD is the "high density" version, making them stiffer and negatively buoyant. I remember explaining this in a previous comment in another video on your channel, but the RK3 is just a short term for "3rd generation Rocket". They are the 3rd generation of the classic "Rocket Fin" originally made by US Divers (a branch of Aqualung) for US Navy Aviation and Surface Rescue Swimmers, and the intent of the design -- with the middle two rails for support and the extra stiff fin blade -- was specifically for fast swimming speeds on the surface of the water. That's exactly why the Rocket, Rocket 2's (aka the "Super Rocket's"), and the RK3's have those central rails, and why the fin tips are pointed. During the same era when US Divers made the Rocket fins for the US Navy, ScubaPro made the "Jet Fins" for the US Navy, with their "smooth" fin blade that was longer, wider, and more flexible. The Jet Fins were specifically made for diving purposes, and over the years, countless companies have piggy-backed off of the Jet Fin design to market their own take on it, of course, always with the claim of being better in some way. To THIS DAY Jet Fins are STILL issued in dive school and Rocket 2's are STILL issued to SAR swimmers (I have had both issued to me myself). The reason why the RK3's even came into existence was when US and UK special operations commands issued an open bid for a new fin design. Apeks, at the time, made the RK3's to enter their bid with, and they were popular enough with dive teams to win the bid. THEN Aqualung bought out Apeks and rebranded it as their "premium" brand, and the RK3's were introduced to the civilian markets. They became popular for diving for no other reason than because of the design features they have which are superior to the Jet "style" fins out there... Primarily, the WIDE foot pocket, pre-drilled draining holes, spring straps, and a foot pocket design that brings the bottom of the pocket nearly to the heel of the diver's boot, allowing greater control of the fin (whereas traditional Jet's foot pocket typically only goes to the middle of the foot, which isn't ideal). For "diving" purposes, a more flexible fin blade has always been thought of as better, and for surface swimming, a stiffer blade creates speed, and is preferable. However, many divers like the stiffness for control and when diving "heavy" (with lots of equipment), and as such, choose the HD version just for this reason. Regardless if they are used for diving (I use the RK3 HD's myself and have for years and I love them), the "design" is STILL based entirely on the surface swimming fin design. That is its intent.
Great video, just the comparison I needed! Just to be clear, You'd say they weigh you down about just the same in the water, correct? Have you tried them with anything other than 7mm or dry suit?
I have dived a couple in the 3mm. However it wasn’t during the comparison so I didn’t gather data.
That’s the fins I use the Rocket fins they are great just don’t make them for big feet but I make them work anyways
The jet fins do have a smaller foot pocket length wise. But they are a little wide in the pocket. Feeling sloppy on the feet. Still testing them and getting a feel for them. That review and then head to head are in the process of being made.
i wonder 10inch foot pocket is until the rubber on the spring ? or what ? can you give me the photo on full measurement please ? thankyou
Inside the pocket from the tip of the toe, to the end of the molded fin.
@@cyborgpirate5882 so until the spring that hold the toe is extra about 1inch ? is that correct ?
@@irvang5719 until the end of the fin below the boot sole
@@cyborgpirate5882 i used 42 booties does it fit to the large rk3 ?
@@irvang5719 I wear a 10 US boot and the Large RK3 HD size fin. I don’t know the non-US sizes.