# Rotorcraft additional helicopter class rating course — airline transport pilot certificate — FAA flight training hour minimums: Part 61 vs Part 141, by certificate and rating

For Rotorcraft additional helicopter class rating course, certificate or rating is Rotorcraft additional helicopter class rating course — airline transport pilot certificate; part 141 minimum is 25 hours of flight training in a helicopter; part 141 appendix is Part 141 Appendix I, para. 4(l)(4), recorded from its source on 2026-08-18.

- **Certificate or rating:** Rotorcraft additional helicopter class rating course — airline transport pilot certificate _(our reading, not quoted from the source)_
- **Part 141 minimum:** 25 hours of flight training in a helicopter _(verified: appears in the quote below)_
- **Part 141 appendix:** Part 141 Appendix I, para. 4(l)(4) _(our reading, not quoted from the source)_

## What the source says

> ( 4 ) For the airline transport pilot certificate, the course requires 25 hours of flight training in a helicopter on the areas of operation under appendix E of part 141, paragraph 4.(c) that includes 15 hours of instrument training.

## Source

- https://www.ecfr.gov/current/title-14/chapter-I/subchapter-D/part-141

Last verified: 2026-08-18. Review by: 2027-08-18.
Part of [FAA flight training hour minimums: Part 61 vs Part 141, by certificate and rating](https://referencesource.org/flight-training-hour-minimums-61-vs-141/).