Javelin sounding rocket nosecone with Canadian STEM deployable antenna is prepared for launch in 1961
De Havilland Storable Tubular Extendible Member being fitted to Javelin sounding rocket nosecone, Summer 1961.
First launched STEM antennae for Javelin sounding rocket 1961
Four Storable Tubular Extendible Members (STEM) inside the shell of satellite S-27 (Alouette 1)
Diagrams of De Havilland STEM antenna
De Havilland STEM Antenna (A-18 model)
De Havilland STEM Antenna (A-21 model)
De Havilland STEM Antenna (A-26 model)
De Havilland STEM Antenna (A-32 model)
De Havilland STEM Antenna (A-45 model)
De Havilland concept art for STEM robot digging arm (c. 1963)
De Havilland concept art for STEM Robot Arm (c. 1963)
De Havilland STEM Stacked End Fire Parasitic Array Antenna concept art (c. 1963)
De Havilland STEM antenna 5209 as used on Gemini spacecraft