-----Original Message-----
From: ShellyDalg@aol.com
To: personal_submersibles@psubs.org
Sent: Sat, Mar 27, 2010 10:49 am
Subject: Re: [PSUBS-MAILIST] Rudder Indicator using 3 Reed Relays
Hi Hugh. Yes, speed is a concern. The actuators don't have the shaft coming
out the back so the overall length is increased to 14 inches to include the
rod in the "closed" position. Oil compensation will negate the pressure
differential, so just getting them sealed should take care of that.
This particular unit is rated at 40 pounds push/pull, holding power is 100
pounds, and full load speed is .7 inches per second with a 6 inch stroke. I also
have a 12 inch stroke one that is rated at 150 pounds push/pull but it's speed
is slower at .4 inches per second. The length is about 17 inches. The shaft on
both is 5/8 inch diameter and the casing is 2 inches square.
Frank D.