Swim/Surf Fin Static Thrust Measurements
Date: 10/4/94 06:15-07:15 AM
Location: Agua Hediondia Lagoon
By: GD/CH
Fins | Color/Model | Size | Avg. Thrust | Peak Thrust* |
Duckfeet | Blue-Green-Black (new) | XL |
30,28 |
32,30 |
Duckfeet | Blue-Black (vintage) | XL |
30 |
32 |
Duckfeet | Orange-Blue (vintage) | SXL |
28** |
30** |
Duckfeet | Orange-Blue (vintage) | XL |
27,26,28 |
30,28,28 |
Viper | Short | L |
24,25 |
26,26 |
Hydro Fins | Natural (shallow, quick 'flutter' kick) | L |
22 |
23 |
Redley | Orange-Black (flutter kick) | L |
22 |
23 |
Hydro Fins | Natural (deep, slower, 'power' strokes) | L |
18 |
18 |
Redley | Orange-Blk (power strokes) | L |
17 |
17 |
Bare Feet | Natural (tanned), (orig. equip.) | 9E |
5 |
7 |
Booties | Black (no molded parts, strap-less) | ? |
4 |
5 |
DUK Gloves | Webbed Gloves - No Kicking | M |
35 |
35 |
DUK+Dkft | Gloves +Org-Blue Duckfeet | NA |
60*** |
65*** |
* Burst thrust (as in the final few kicks when catching a wave)
**A lower bound for the thrust. Forgot to bring the thicker booties, so the fins rotated on the feet resulting in a smaller effective blade area and reduced thrust.
*** Off the end of the spring scale (max: 56#) -- values estimated.