I am working on my instrument rating under part 61. I need 40 hours of simulated IMC and 20 of those hours can be in a certified AATD simulator like a redbird. Do I need a CFII to sign off on those hours in the redbird or can I log those hours myself and count them towards my 40 hours of sim IMC?

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    $\begingroup$ Welcome to aviation.SE! I added the faa-regulations tag to your question; please always tell us which country or regulations you're asking about. $\endgroup$
    – Pondlife
    Sep 30, 2021 at 17:12
  • $\begingroup$ There is a difference between a Basic Aviation Training Device (BATD) and an AATD. You can log time for the instrument rating in the old-style BATD but cannot use it for maintaining instrument currency. Refer to AC 61-136B for details. $\endgroup$
    – JScarry
    Sep 30, 2021 at 19:05

1 Answer 1


Yes, you need an instructor. 14 CFR 61.65(i) (emphasis mine):

Use of an aviation training device. A maximum of 10 hours of instrument time received in a basic aviation training device or a maximum of 20 hours of instrument time received in an advanced aviation training device may be credited for the instrument time requirements of this section if -

(1) The device is approved and authorized by the FAA;

(2) An authorized instructor provides the instrument time in the device; and

(3) The FAA approved the instrument training and instrument tasks performed in the device.

You may be thinking of maintaining IFR currency using a simulator. That doesn't need an instructor, per 61.57(c)(2).

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    $\begingroup$ You can log it, but it won't count towards a certification $\endgroup$
    – Ron Beyer
    Sep 30, 2021 at 17:35
  • $\begingroup$ A subtle, detail, @RonBeyer. Subtle, but very important! $\endgroup$
    – FreeMan
    Sep 30, 2021 at 17:40

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