Tube, aluminum, shiny metal, with a detachable end piece of a protruding nozzle and four folding fins, each fin an elongated rectangle with rounded and angled edges; front, an 8.25 inch long section of transparent plastic, secured onto tube by a single steel bolt on point of ogival nose, screwed on to threaded brass screw; when this section is removed by unthreading screw, a micro-instrument payload is revealed consisting, in part, of two copper colored rod, three blue plastic diodes with white lettering (one reading "OHMITE 7 460"), a yellow diode with black lettering (reading "WMF 1568 068 MFD 100 V.D.C."), a toothed, non-ferrous gear wheel, a brown phenolic rectangular strip with five equidistant steel screws attached in line, each securing, in turn, a brown, green, yellow, orange, and black insulated electrical wires. The number 49 also appears in black indelible writing ink, on an aluminum rectangle within this instrument section. Tube also has a removable rectangular mini-hatch, below the instrument section described above, in which is seen, through the cracks around the hatch, what appears to be the white strands of a parachute within this part of the tube. Around the periphery of the bottom of the tube are the words: "Cricket Assy' 1400 Texaco Experiment Inc., Richmond, Va. - Patented [in] U.S. & Foreign [countries]" Propelled by carbon dioxide and acetone. Accompanied by alternative payload heads, a bipod and tripod launcher, a hand-held launcher for potential military applications, a wind tunnel model, and other components, as described below.