Helix & Double Helix Kits
Adding a new definition to the word.
he·lix –noun, plural
hel·i·ces 1. a spiral. 2. Geometry. the curve formed by a
straight line drawn on a plane when that plane is wrapped around a
cylindrical surface of any kind. Equation: x = a sinθ, y = a cosθ, z =
b θ. 3. Rocketry. the shape of
the path followed by the rockets on this page.
| 24mm Helix $15 each | |
| 18mm Helix $10 each | |
| 18mm Double Helix $20 each | |
| 13mm Helix $5 each | |
| 13mm Double Helix $10 each |
From top to bottom: 13 mm, 18 mm & 24 mm Helix
From top to bottom: 13 mm & 18 mm Double Helix
24mm Helix
Specifications: Wing Span: 8 inches, Weight: 1.4 oz (39 grams)
Recommended Motors: D11-P, D12-0, D12-3, E9-P, E9-4, Apogee E6-P & E6-4
18mm Helix
Specifications: Wing Span: 6 inches, Weight 0.6 oz (17 grams)
Recommended Motors: B4-2, B6-0, B6-2, C6-0, C6-3
18mm Double Helix
Specifications: Wing span: 16.5 inches, Weight: 1.1 oz (30 grams)
The recommended motors are: B4-2, B6-0, B6-2, C6-0, C6-3.
13mm Helix
Specification: Wing span: 4 inches, Weight: 0.3 oz (7 grams)
Recommended Motors: A3-4T, A10-0T, A10-3T, A10-PT.
13mm Double Helix
Specification: Wing span: 12 inches, Weight: 0.6 oz (16 grams)
Recommended Motors: A3-4T, A10-0T, A10-3T, A10-PT.
All Helix and Double Helix kits are constructed from the highest quality Basswood sheets, Poplar dowels and LOC Precision tubing. Their simple and robust construction means they will continue to fly long after other rockets have been retired. Launch preparation is super simple, just insert the motor and launch! These rockets fly very well even in windy conditions and always land close to the pad. The Double Helix kits use two motors for a unique and exciting, high performance, cluster flight.
Each kit comes with all materials need except glue. They can be built in a single evening using ordinary craft tools and supplies. This kit is recommended for experienced modelers who will appreciate it unusual construction techniques and flight characteristics. The Helix requires a strong launch pad with a short 1/4" rod. Instructions for building a suitable pad out of readily available materials are included with the kit and also shown below.
Helix Launch Pad
The launch pad for monocopter should be sturdy and fixed firmly to the ground. Never attempt to launch the Helix from a standard launch pad with a long launch rod. A suitable launch pad can be constructed from the following materials:
- 4 - 2x4s, three, 18 inches long and one, 36 inches long. The lengths need not be exact.
- 1 - 4 inch long, ¼-20 carriage bolt and 3 nuts
- 6 -3 inch long wood screws.
Drill
a 1/4” hole in the middle of one of the short 2x4s. Insert the
carriage bolt into the hole and secure it tightly with one of the nuts.
Attach
the long 2x4, perpendicular to the bottom of the short one with two
wood
screws. Attach the two remaining short 2x4s to the opposite ends of
the bottom of the first short 2x4 with two wood screws each.
Thread the two
remaining 1/4-20 nuts on the bolt and use them to adjust the height of
the rocket above the pad.
The Dragonfly monocopter on a launch pad suitable for the Helix and Double Helix kits