No Offense at all
Ziggy:
You did not sound bad at all. I just didn't want you to think that I was. Believe me I am not trying to cause trouble.
Fresh from faa.gov------
135.169 Additional airworthiness requirements.
(b) No person may operate a reciprocating-engine or turbopropeller-powered small airplane that has a passenger seating configuration, excluding pilot seats, of 10 seats or more unless it is type certificated—
(1) In the transport category;
(2) Before July 1, 1970, in the normal category and meets special conditions issued by the Administrator for airplanes intended for use in operations under this part;
(3) Before July 19, 1970, in the normal category and meets the additional airworthiness standards in Special Federal Aviation Regulation No. 23;
(4) In the normal category and meets the additional airworthiness standards in appendix A;
(5) In the normal category and complies with section 1.(a) of Special Federal Aviation Regulation No. 41;
(6) In the normal category and complies with section 1.(b) of Special Federal Aviation Regulation No. 41; or
(Non germain parts eliminated for space in this post)
§ 135.399 Small nontransport category airplane performance operating limitations.
(a) No person may operate a reciprocating engine or turbopropeller-powered small airplane that is certificated under §135.169(b) (2), (3), (4), (5), or (6) unless that person complies with the takeoff weight limitations in the approved Airplane Flight Manual or equivalent for operations under this part, and, if the airplane is certificated under §135.169(b) (4) or (5) with the landing weight limitations in the Approved Airplane Flight Manual or equivalent for operations under this part.
(b) Talks about landing only. Look it up at faa.gov. (b) is the last paragraph in .399
I don't see anything in 135.399 that deals with anything other than aircraft that have ten or more passenger seats--recip or turboprop. I know where you are coming from, but when you read the reg again, you will see that it makes no mention of anything other than aircraft covered by 135.169. The key word is the OR between reciprocating and turbopropeller. You can have a piston engine airplane covered by 135.169.