fin weights%%%

ok not trying to be smart just want to find out the difference in weights of all these  various light weight fins.

any brand or even any hand made  no exemptions

 

      lets just take one example say p c 5   (or as close as)   just ONE fin weght in oz

 

 and i am not adverse for you fin companys to post a bit of    fin   porn as well

 

  f c s

**larry **

 jimmy

**dean
**

 anyone realy

 

                      ** cheers huie**

As I consider myself  " anyone",I’ll chime in first…

The differences between fiberglass and fins like RTM’s is significant,

I have 2  large pieces of .25"  thick bamboo that I plan on using to build some copies of my favorite twin /quad fins with…

My gut feeling is bamboo has the best weight to strength  /  flex  /  performance of any material currently available…imho…  This is just a gut feeling, so please don’t beat me over the head with it…lol

I weighed  a single side fin   only, no full foiled trailers…

 1.  Future  F3   RTM sides( carbon tipped and carbon base) :    52g. or 1.9oz.

 2. Jimmy Lewis  4.35" fiberglass:    82g. or 2.90 oz. (future based)

3, Fiber Glass fin co. standard quad set, Pro-box base, fiberglass fin :    75g or 2.60oz.

  rear quad fin of same set:    50g. or 1.75oz…

4.  Twinzer “fore fin”, hand sanded by Larry A… in fiberglass:    35g. or 1.25oz. ,Pro Box base

5.  5" tall Barnfield twin fin in fiberglass:  117g. or a whopping 4.10oz ( I had to weigh it twice just to be sure…)   I guess if you put it into perspective, there are only 2 fins to account for, so I guess it 's not that heavy really…

  1. 4.75" Apia twin in fiberglass:  105g. or   3.70 oz…

I don’t have any bamboo fins to weigh at this time, but plan on building some alternatives to the heavy glass twins listed above…

Note the standard sized   RTM thruster side fin is the lightest by far,  weighing slightly more than the tiny glass twinzer fore fins…

I hope some people with the  the cool  101 bamboo fins chime in here as well, it’s interesting to compare the differences…

Good idea Huie…

Huie. What’s the weight of those RTM 4 ways fins you posted pictures of a while back ?, they look interesting…

I've got some data on this but it's the weekend and I ain't drivin to work to get it. Interesting subject.

To make proper comparisons, you have to equalize for fin ''size'' (if I start talking about mass or volume huie will be mad at me for being a techwit). Area is a # most of the fin companies make available and a decent starting point.

You also have to consider box weight, but that's a can of worms because everone will argue about how much resin it takes to install each.

hey kite

 great post just what i mean.  i have a feeling  this thread will lead us to some interesting stuff.

 have been down the bammbo rd but am working on something  much better will post it once it passes some trials.

 

yo mike  i promise no matter what gets said i will not go off   haaa’’

 

yes that is why i sugested pc 5 seems a preety std size

and all box weights will be good

 

**                cheers huie
**

**
**

Hey Mike. I see what you mean about mass and volume, another factor for sure…

I was really “generic” in my description of  the fins I had on hand… 

My size  numbers were based on standard  fin dimension measurments…   A generally accepted base to tip  measurment used by the surfing community… Thinking about what you’ve said  about mass and volume,it’s funny … because most commercial  fins are sized by lenght (base to tip) with little regard to mass or volume… Perhaps it’s important for people to delve beond the base to tip dimensions…

I’m a bit of a fin whore, have been since windsurfing days, I love buying / trying different fins… It’s a sickness, I can live with…lol

 As far as boxes go… I’m  a Pro-Box’er   tried and true…   Until something comes along as adjustable  and easy to install,  I’ll stick with their system…   It’s heavier than some,   but so am   I. …That being said, the 4ways Nano system seems interesting… Offset a heavy adjustable box system with light weight fins, How’s that for a  fair compromise??

I can’t  respond to the pc 5 fin ,  as I’ve never tried it and don’t know anything about it…  Sounds like a cool fin though… I  'll do some research…

Any topic about fins, stirs my juices…

I’ve glued up some carbon covered A550 core-cell fins, but have not finished them… They are very light and surprisingly stiff for a core-cell based fin…

It’s threads like this that motivate me…

I looked up the specs for the pc 5  …Dimensions are 4.55" tall and 4.374" base width no weights given…

OK, i measured, the following single side fins of each:

 

60 grams plastic composite

 

60 grams Hex bamboo core lights

 

68 grams Hexlite fins

 

70 grams hex-carbon-lite fins

 

i also got my hands on these FCS side fins

PC7 hex-lite =63grams and

G5 Glass fin = 73grams

(but i don't think it's fair on fcs 4 me to bring fcs's info to this discussion???)

does this help you?

 

cheerz

D

 

 

**yea thanks dean.                                                                                           
**

nah i was expecting the other fin men to give me some specs?

** i guess the big dogs dont find the need to atend to such trivial matters**

**
**

all i am doing is compiling a list of all fins so i can match to were they want to save weight

if i can save 6 oz in a set of quads its 6 oz of extra fbre i can add   eggshell glassing gives me the sh##ts

cheers huie

ok, FINALLY!!!!

i have compared the following similar thruster fin sets:

185 grams plastic composite

190 grams Hex bamboo core lights

200 grams Hexlite fins

205 grams hex-carbon-lite fins

 

hope this info helps,

 

let me know ok,

cheers

Deano

 

haaa’ dean its like extracting teeth from these fin makers?

 

                 your meas is for sets .     per fin would do

 but thats ok   thank you

 

what about f c s latest  claims anyone got one?

**
**

                cheers huie

 

**haaa’’ fin fever scary subject eh               or mybe we dont need em anymore?
**

 

 deano i am impressed

easyiest install of them all

Huie,

thanx mate...

we worked hard at designing and refining the install process,

we'll keep progressing and evolving as time goes on...

the more support we get, the more things we'll try to do,

we love the feedback.

 

thanx for your input

regards

Deano