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RX-250-LPN Model Rocket Kit (24mm)


Retail Price: $29.95
ASP Price: $24.95 each
You Save $5.00!


The RX-250-LPN is an Indonesian sounding rocket. The RX series of rockets was first developed in the mid 1980’s. The RX-250-LPN was designed to lift scientific instruments to an altitude of 70 km and was flown between the years of 1987 and 2007.

This scale kit is nearly two and a half feet tall and features a balsa nose cone, laser-cut basswood fins, water-slide decals and quick-change engine hook. Designed primarily for 24mm C, D & E engines, it can also be flown on selected 18mm engines with an adapter (not included). A bright metallic parachute returns it to the ground for flight after flight.


Length: 27.75"/70.5 cm
Diameter: 1.326”/33.7 mm
Weight: 3.5 oz/99 gm
18" Parachute Recovery
Scale: approx. 1/7.42 (0.135)
Skill Level: Intermediate
Requires 3/16" Launch Rod
Center of Pressure: 23.3" from tip of nose
Recommended Engines: C11-5; D12-7; D22-7; E15-7; E20-7; F44-8; with an 18/24 Adapter (not included): B4-2; B6-2; C6-3; C12-6; C18-6; D16-6; D20-6

What you'll need to build this model:

Adhesives (Wood glue, such as Elmer’s Carpenters Glue, can be used throughout and is recommended for most construction. Other adhesives [epoxy, Cyanoacrylate aka "CA", etc.] may be used if you are familiar with their use and prefer them.); Hobby Knife with sharp #11 Blade; Ruler; Pencil; Masking Tape; Sandpapers (Medium - 180 or 220, Fine 320 or 400, & [optionally] Extra-Fine - 500 or 600); Sanding Sealer (or other balsa filler coat); Thinner (appropriate for the type of sanding sealer used); Small Paint Brush (to apply sealer); Spray Paint (such as Rust-Oleum, Krylon, or Testors is recommended. Be sure not to mix different types or brands of paint without testing.) - primer (optional), white, red, & clear (optional).
Recommended, but not required: Metal Angle or other tube marking tool; Sanding Block; Tack Cloth.
Optional: Material to fill body tube seams and/or any imperfections in wood parts, such as Elmer’s Carpenters Wood Filler, Interior Spackling Paste, etc.; decal setting or solvent solution (such as Micro-Set or Micro-Sol).

What else you'll need to fly this model:

Electronic launch system; launch pad with 3/16" launch rod; recovery wadding; engines (see list of recommended engines above).