HPA
Outdoor Free Flight Forum => CO2 Power => Topic started by: g_kandylakis on Jan 03, 2026, 03:35 AM
It will take plenty of time to upload all the relevant material that has been posted on fb over the last 5 years, but there has to be a start sometime.
One of the first articles following the revival of CO2 motors by Bill Brown, with thw 1969 0,005" motor, was written by J. D. McHard and published in the 1972-73 Aeromodeller Annual.
Here in PDF format, two pages per file
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Is there a way to get the DH2 plan designed by Mr Mchard?