[CA] [CA11] 100 series autopilot vs SG

[Chuck - Raymarine - Moderator]

Harry,

Q1. The Sabre 34 has an S1 (not an S3), which is not suitable for a Type 2 linear drive, from what I can tell. The S3 of course is suitable for the drive. Strike 1.
A1. Raymarine did not produce course computers having the names Series 100 and Series 300. However, Raymarine did produce autopilot course computers having the names Type 100 and Type 300. These were succeeded by the S1, S2, and S3 autopilot course computers and then the gyro assisted versions of these same autopilot course computers, the S1G, S2G, and S3G. The S1/S1G were capable of powering a Type 1 mechanical linear drive, while the S2/S2G or S3/S3G would have been capable of powering a Type 2 mechanical linear drive.

Q2. The Saga has a Series 300, not a Series 100. I don't know the actual specs for the two units, but the service manual says the only difference is the Series 300 can drive a bigger actuator. Strike 2.
A2. The Type 300 autopilot course computer was capable of powering a Type 2 mechanical linear drive, while the Type 100 autopilot course computer was limited to a Type 1 mechanical linear drive.

Q3. I think that with the correct models, the verdict reverses. I should keep the S1 on the 12,000 pound Sabre 34 with the wheel pilot, and the Series 300 on the 22,000 pound Saga 43 with the Type 2 Long linear drive (and not swap units). Do you concur?
A3. A Type 100 course computer or S1 autopilot course computer with a wheel drive constitutes a correct/valid combination for a 12,000 lb. sailboat. A Type 300 course computer or S3 autopilot course computer with a Type 2 mechanical linear constitutes a correct/valid combination for a 22,000 lb. sailboat.

Q4. The Saga has a rate gyro unit, an E12101, and I can't find the manual anywhere. Can you point me to where I can download it?
A4. You may be referring to the Gyro Plus, also known as the Pathfinder Smart Heading Sensor. The manual for it may be found here.