Stratofins Screw-on Water Rocket Fins - Compatible With 2 Liter Bottles

Stratofins Screw-On Water Rocket Fins - Compatible with 2 Liter Bottles or Smaller
Description Item model number FIN-1 Product Dimensions 7.5 x 5.5 x 2 inches Country of Origin USA Item Weight 1 ounces Manufacturer recommended age 14 years and up Is Discontinued By Manufacturer No

Compatible with 95% of all available launchers either homemade or commercially available.

Works with various styles: cable ties, rubber stopper, expanding tube, nozzle, or O-ring.

No tools or glue required for assembly, simply screw-on to a 2 liter soda bottle or smaller.

Take your water rocketry to the next level of higher flights with screw-on StratoFins.

StratoFins kit includes 1 attachment ring and 3 fins along with an instruction sheet.

Product Description
Compatible with Most Water Rocket Launchers
Our StratoFins are compatible with 95% of all water rocket launchers either homemade or commercially available in the marketplace.
Works with Various Designs
The StratoFins replicate the threaded portion of the soda bottle beyond the fins; therefore, it works with almost all types of launcher designs that employ a nozzle (StratoLauncher IV and Quest) or O-ring (Aquapod*) or cable ties (homemade) or expanding tube (AntiGravity) or rubber stopper (4M).
*Aquapod may require a fresh O-ring or a slightly thicker one (#67 O-ring 13/16 in. OD x 11/16 in. ID x 1/16 in.) If neither of these suggestions provide a snug enough fit, then use a #9 O-ring 5/8 in. O.D. x 7/16 in. I.D. x 3/32 in.
Requires Gentle or Chute Recovery
A water rocket outfitted with StratoFins can be launched with or without a parachute attached since this configuration does not nose dive, but instead tumbles gently to the ground provided the nosecone is not permanently attached. Employ a weighted fall away nosecone made from a 2nd soda bottle to ensure a gentle recovery. Also, avoid launching and landing on hard surfaces such as asphalt, concrete, or rocky ground.
StratoFins make it easy to attach a parachute by looping the shroud lines over the fins and securing the lines at the top of the rocket with a 4-inch zip tie. Watch the instructional video under our StratoChute listing. Although the StratoFins are durable, they are not designed for rockets with a permanently attached nosecone that nose dive into the ground or for angled trajectory launches without a chute.
Achieve Higher Altitude
StratoFins will guide your rocket to lofty heights with straight flights instead of tumbling through the air. Achieve altitudes at least double if not triple compared to launching without StratoFins attached. An aerodynamic weighted fall away nosecone made from a 2nd soda bottle is required.
StratoFins Versatility
The StratoFins screw on to 5 different soda bottle sizes (0.5L, 1L, 1.25L, 1.5L, and 2L). Plus, they work with most spliced bottle configuration rockets and FTC (fluorescent tube cover) rockets.
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