Giant Leap Rocketry
 

 

 
Giant Leap Rocketry Components - Fins
 

Groove-LOK Fin Attachment

Groove-LOK Fin Attachment

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The Elipse uses the Groove-LOK - Click Here

The Groove-LOK is the latest in fin attachment technology. It epoxies over a 38mm motor tube and makes attaching fins much more efficient. Made of high-strength extruded aluminum, it holds the fins in perfect alignment. It's a fin alignment guide built into the rocket.

Let's face it, attaching perfectly aligned fins the old fashioned way is a bear. You have to aim and drip epoxy down into an impossibly small space while keeping the fins straight and aligned, making sure the epoxy and cloth are making contact, while keeping the epoxy drips out of the motortube. off the airframe and away from your shoes. Fun, huh?

The Groove-LOK adds incredible strength to your fincan area, with very little weight gain. It interlocks all fin canister components, and transfers loads. Much stronger than a standard layup.

  • Locks fins into preset channels

  • Build your fincan outside the airframe

  • Aligns fins perfectly

  • Simplifies construction

  • Interlocking load transfer

  • Stronger than standard layup

  • Strengthens fins

Size - FITS 38mm Motortube

Price

6" long (3.75 oz)

$16.29

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G-10 Fiberglass Fins

G-10 Fiberglass Fins #1 - #14

G-10 Fiberglass Fins #15
 

Using diagram 1 below, compare the dimensions of the "A" "B" and "C" linear measurements for picking your fins. The shaded area to the left of the fin in the diagram is the through-the-wall fin tab.

Specify fin tab width, or indicate airframe size and motor tube, and we'll determine the tab dimensions. When ordering online, use the comments area on the checkout page to specify fin tab information.

TECH NOTE:  G-10 can be cut using a jig saw with a fine-tooth metal blade. Sand edges smooth by hand or, better yet, with a bench disk sander or similar tool. Careful, G-10 is very dense material and can destroy cutting bits / blades. G-10 can cut you! Always wear hand and eye protection as well as a breathing respirator.

G-10 Fiberglass Fins Measurement Diagram

Diagram 1

 

 

 

"A"

"B"

"C"

Thick

Price

1

5.5"

5.5"

2.6"

.062"

$8.05

1

5.5"

5.5"

2.6"

.093"

$10.29

2

4.0"

2.9"

1.0"

.062"

$9.93

2

4.0"

2.9"

1.0"

.093"

$11.05

3

7.6"

3.6"

---

.062"

$8.05

3

7.6"

3.6"

---

.093"

$10.29

Out Of Stock

4

8.7"

4.0"

1.9"

.062"

$8.05

Out Of Stock

4

8.7"

4.0"

1.9"

.093"

$10.29

Out Of Stock

5

6.5"

5.0"

2.6"

.062"

$8.05

5

6.5"

5.0"

2.6"

.093"

$12.53

6

9.6"

9.1"

6.6"

.062"

$10.64

Out Of Stock

6

9.6"

9.1"

6.6"

.093"

 $12.87

Out Of Stock

6

9.6"

9.1"

6.6"

.125"

$16.18

Out Of Stock

7

11.6"

5.9"

3.1"

.062"

$10.02

7

11.6"

5.9"

3.1"

.093"

$14.49

8

7.4"

4.8"

3.3"

.062"

$8.91

Out Of Stock

8

7.4"

4.8"

3.3"

.093"

$13.38

Out Of Stock

9

7.3"

5.9"

4.6"

.062"

$8.05

Out Of Stock

9

7.3"

5.9"

4.6"

.093"

$12.53

Out Of Stock

10

6.5"

6.5"

3.1"

.062"

$8.05

Out Of Stock

10

6.5"

6.5"

3.1"

.093"

$12.53

Out Of Stock

11

5.9"

5.6"

2.6"

.062"

$8.05

Out Of Stock

11

5.9"

5.6"

2.6"

.093"

$12.53

Out Of Stock

12

8.5"

8.5"

4.0"

.062"

$10.99

Out Of Stock

12

8.5"

8.5"

4.0"

.093"

$14.35

Out Of Stock

12

8.5"

8.5"

4.0"

.125"

$17.79

Out Of Stock

13

11.5"

7.5"

5.8"

.062"

$10.99

13

11.5"

7.5"

5.8"

.093"

$14.35

13

11.5"

7.5"

5.8"

.125"

$17.79

14

11.5"

7.5"

4.3"

.062"

$10.99

Out Of Stock

14

11.5"

7.5"

4.3"

.093"

$14.35

Out Of Stock

14

11.5"

7.5"

4.3"

.125"

$17.79

Out Of Stock

15

13.8"

5.3"

2.8"

.093"

$14.54

15

13.8"

5.3"

2.8"

.125"

$17.56

G-10 Fiberglass Raw Sheet Stock

Fiberglass sheets for fins

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  • Fiberglass sheets for fins

  • Practically indestructible!

  • Extra shipping costs apply because of width
     

Size

Price

.062" (1/16") 12" x 12"

$14.69

.062" (1/16") 12" x 24"

$27.29

.062" (1/16") 12" x 48"

$52.49

.093" (3/32") 12" x 12"

$20.99

.093" (3/32") 12" x 24"

$39.89

.093" (3/32") 12" x 48"

$69.29

.125" (1/8") 12" x 12"

$28.34

.125" (1/8") 12" x 24"

$52.49

.125" (1/8") 12" x 48"

$98.69

Acme Fin Cans

ACME™ injection molded fin canisters

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Acme™ injection molded fin canisters

  • STRONG, Practically indestructible! This allows the use of small, rapid descent chutes to bring it home from extreme altitudes.

  • SAVES TIME! Just slide it on, epoxy it, and your almost ready to fly!

  • Ideal for 54mm and 38mm Minimum Diameter rockets!!

  • No more messy, time-consuming and frustrating fin lay-ups

  • Nike-style diamond Airfoil to reduce drag.

  • Can be adapted for use with 2.56" and 3.00" bodytubes...call!

Weight: 13.5 oz

Click here for detailed specifications (PDF)

 

Product

Price

38mm fin canister

$33.99

54mm fin canister

$33.99

 

John Hattan

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John Hattan and daughter recover their rocket ONE YEAR LATER! After all that time, the fincan is in perfect condition.

 

High-Performance Fin Cans!!

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Weight = 11.8 oz., that's about 15% lighter - and the weight loss is where you need it most -- at the rear of the rocket!

TECH TIP: For low drag, fill the holes with lightweight filler or foam! That preserves the laminar flow but keeps the weight off.

High-Performance Fincan also available with the
Firestorm 54 and the Vertical Assault

 

Product

Price

38mm high performance fin canister

$43.99

54mm high performance fin canister

$43.99

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