Anthony Thompson <thompson@...>
Mike Aufderheide wrote:
Could you give me a few line synopsis of how the BohnAndy Sperandeo has answered the basic question already. The "standard ice hatch," before the days of one-piece steel hatches, was really two parts: the plug, which fitted into the bunker opening and made a seal, and the cover, which was the weather protector. The Bohn ventilator just replaced the cover, as Andy described. There was still a plug inside, and it was still latched up when in ventilation service.
Tony Thompson Editor, Signature Press, Berkeley, CA
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