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WAC Corporal with Tiny Tim Booster Model Rocket Kit (Two Stage 18mm to 18mm Version)


Price: $29.95 each


The WAC Corporal was the United States first sounding rocket. Seventeen WAC and WAC B rockets were flown from 1945 to 1947. The WAC was launched with the aid of the Tiny Tim solid propellant booster. After the booster burned out, it fell away and the liquid fuel propelled sustainer stage continued its' upward flight.

This "NAR Contest - Legal" model of America's first Sounding Rocket is nearly two feet tall. Using the "Pass - Port" staging method, a standard 18mm Booster engine fires another 18mm Upper Stage engine for sky - high flights! The Upper Stage may also be flown as a single stage model. Features hard balsa nose cone and laser-cut balsa fins. Recommended for the intermediate to advanced modeler.

2-Stage Specifications:

Length: 23.5"/59.7 cm
Diameter: 0.976"/24.8 mm
Weight: 2.47 oz/70 gm
12" Parachute & Tumble Recovery
Skill Level: Intermediate/Advanced
Recommended Booster Engines: B6-0; C6 - 0
Recommended Upper Stage Engines: A8-3; A8-5; B6-6; C6-7

Estimated (calculated) 2-Stage Altitudes:

with B6-0 & A8-3 (or 5): 550 feet/167 meters
with B6-0 & B6-6: 795 feet/243 meters
with B6-0 & C6-7: 1215 feet/370 meters
with C6-0 & B6-6: 1070 feet/326.5 meters
with C6-0 & C6-7: 1450 feet/442 meters

Single Stage Specifications:

Length: 15.75"/40 cm
Diameter: 0.976"/24.8 mm
Weight: 1.47 oz/42 gm
12" Parachute Recovery
Recommended Engines: A8-3; B4-4; B6-4; C6-5; C6-7

Estimated (calculated) Single-Stage Altitudes:

with A8-3: 200 feet/60.5 meters
with B4-4: 470 feet/143 meters
with B6-4: 500 feet/151.5 meters
with C6-5 (or 7): 975 feet/297 meters

What you'll need to build this model:

Adhesives (thin Cyanoacrylate, “CA” glue, is recommend for some steps - for the rest of the model CA, Wood Glue, such as Elmer‘s Carpenters Glue or Titebond, or Epoxy may be used. We recommend you read “Some Notes on Adhesives”.); wax paper; hobby knife with a sharp #11 blade; ruler; scissors; masking tape; sanding sealer (or balsa fillercoat); thinner (appropriate type for the sanding sealer); small paint brush; paint (Spray paint, such as Krylon or Testors is recommended. Be sure not to mix different types or brands of paint without testing) - primer (optional), white and/or yellow, black, silver & clear (optional); sandpaper (medium - 220 or 280, fine - 320 or 400, & [optionally] extra fine - 500 or 600); ball point or felt tip pen; pencil.
Recommended, but not required: sanding block; tack cloth.
Optional: material to fill body tube seams such as Elmer’s Fill & Finish, Elmer’s Professional Carpenter’s Wood Filler or interior spackling paste.

What else you'll need to fly this model:

Electronic launch system; launch pad with 1/8" launch rod; recovery wadding; engines (see list of recommended engines above).