KSUFLY – You need to check your log books. Under part 61, you need 250 hours of flight time to obtain a commercial pilot certificate. Under part 141, you need 185 hours of flight time. I have taught under both parts.Heloanjin...you need to realize that those are cummulative. Your time for you private and instrument count towards your commercial. You don't need an additional 120 hours for your commercial. I think I got mine with around 130 hours but I'd have to check my log book for that and it's 800 miles away.
You must have a commercial certificate to get a CFI. So the minimum flight time that a CFI would have when he initially obtained his ticket would be around 200 hours if all his training was under part 141 or over 250 hours if it was done part 61.
You are right that the time is cumulative. Under part 141 you need a minimum of 35 hours to get your private. To get your instrument, you need a private plus an additional 30 hours so you are now at a minimum of 65 hours. To get your commercial, you need the private and instrument plus an additional 120 hours. This is 185 hours minimum. However most pilots need more than the minimum to get all their tickets. My experience was that someone who trained private through commercial under part 141 had around 210 to 220 hours when they completed their commercial.
Many did combine their training getting their single and multi tickets in the process. You just have to be sure you hit all the individual wickets along the way (PIC, cross country, night, etc.) So many ended up with both when they completed with around 210-220 hours.
Here are the applicable regs:
Section 61.129: Aeronautical experience.
(a) For an airplane single-engine rating. Except as provided in paragraph (i) of this section, a person who applies for a commercial pilot certificate with an airplane category and single-engine class rating must log at least 250 hours of flight time as a pilot that consists of at least:
Section 61.183: Eligibility requirements.
To be eligible for a flight instructor certificate or rating a person must:
(c) Hold either a commercial pilot certificate or airline transport pilot certificate with:
Section 141 Appendix B: Private Pilot Certification Course
1. Applicability. This appendix prescribes the minimum curriculum for a private pilot certification course required under this part, for the following ratings:
(a) Airplane single-engine.
(b) Airplane multiengine. ...........
3. Aeronautical knowledge training.
(a) Each approved course must include at least the following ground training on the aeronautical knowledge areas listed in paragraph (b) of this section, appropriate to the aircraft category and class rating:
(1) 35 hours of training if the course is for an airplane, rotorcraft, or powered-lift category rating.
Section 141 Appendix C: Instrument Rating Course
1. Applicability. This appendix prescribes the minimum curriculum for an instrument rating course and an additional instrument rating course, required under this part, for the following ratings:
(a) Instrument—airplane.......
2. Eligibility for enrollment. A person must hold at least a private pilot certificate with an aircraft category and class rating appropriate to the instrument rating for which the course applies prior to enrolling in the flight portion of the instrument rating course....................
3. Aeronautical knowledge training. (a) Each approved course must include at least the following ground training on the aeronautical knowledge areas listed in paragraph (b) of this section appropriate to the instrument rating for which the course applies:
(1) 30 hours of training if the course is for an initial instrument rating.
Section 141 Appendix D: Commercial Pilot Certification Course
1. Applicability. This appendix prescribes the minimum curriculum for a commercial pilot certification course required under this part, for the following ratings:
(a) Airplane single-engine.
(b) Airplane multiengine. .......
2. Eligibility for enrollment. A person must hold the following prior to enrolling in the flight portion of the commercial pilot certification course:
(a) At least a private pilot certificate; and
(b) If the course is for a rating in an airplane or a powered-lift category, then the person must:
(1) Hold an instrument rating in the aircraft that is appropriate to the aircraft category rating for which the course applies; or ........
4. Flight training. (a) Each approved course must include at least the following flight training, as provided in this section and section No. 5 of this appendix, on the approved areas of operation listed in paragraph (d) of this section that are appropriate to the aircraft category and class rating for which the course applies:
(1) 120 hours of training if the course is for an airplane or powered-lift rating.