Avionics FAQs

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Avionics FAQ

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Can the Sperry C-14A dir. gyro be used in place of the Collins 332E-4 dir. gyro in the Collins PN-101 compass system?

Yes. The C-14A directional gyro can be used in place of the 332E-4 dir. gyro and 328A-3G slaving amp. However, the amplifier in the C-14A gyro is not enough to drive the compass card in the 331A-3G HSI. Therefore, the 341C-1 servo amplifier must be used in conjunction with the C-14A to function properly the Collins PN-101.