Re: [PSUBS-MAILIST] dome hatch lift force

[Øystein Skarholm <skarholm@gmail.com>]

Offcourse :-) But this is very individual. If the counter weight is hollow it can even create an downward force when submerged. This will depend on design. Also the force from the spring is individual, therefor I just mentioned selfweight when submerged. This has to include the spring force and any changes for due to counter weight design.

2009/11/4 Jens Laland <laland@artematrix.org>

Alan and Øystein

What about the force vector (uplift) caused by a balancing spring or
counterweight (if any) on the hatch?

Shouldn't this difference be subtracted from the self-weight of the hatch?

** In addition the self weight of the hatch will cintribute to downward **

force.
** 2009/11/4 Alan James <alanjames@xtra.co.nz>

Best regards,
Jens Laland







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Vennlig hilsen
Øystein Skarholm