Transport Category

[time builder]

I've searched the AIM for definitions on aircraft categories and couldn't find a definition for transport category. Is there a weight involved, or is it like utility/normal/acrobatic where you base it from the load factors which can be placed on the plane and its aircraft specific.

 

[AC560]

Transport category planes are certified under Part 25 and Normal/Utility/Acrobatic/Commuter are certified under Part 23.

 

[bocefus]

Depends on the context in which it is used. For example, a B-727 is normally considered a transport category aircraft, however, not for the purpose of describing it as being certified under part 25, because it is was not certified under part 25.

 

[transpac]

Depends on the context in which it is used. For example, a B-727 is normally considered a transport category aircraft, however, not for the purpose of describing it as being certified under part 25, because it is was not certified under part 25.

The B-727 is a transport category airplane because it was certified under the transport category rule in effect at that time, CAR 4b. FAR Part 25 came along later and superceded CAR 4b.

 

[bocefus]

Ummm, yeah, The point was, B-727 was not certified under part 25.

 

[A Squared]

Ummm, yeah, The point was, B-727 was not certified under part 25.

Yes, and i think that the other point was that the 727 was certificated under the equivelant predecessor part.

Stating that the 727 was not certificated under Part 25, without mentioning CAR4b, while not incorrect, is at least as misleding as saying transport category aircraft are certificated under part 25

 

[bocefus]

Umm yeah, what is misleading, is to state that FAR 25 and CAR 4B are equivalents, because they are not. Ask yourself why 727's were produced and certificated under CAR 4B even when FAR 25 was effective and in place. Why do civil airworthiness authorities continue to release supplemental inspection/maintenance requirements that are only required to comply with the regulation that was in effect at the time of original certification? After all, if they are "equivalents" why wouldn't they simply require compliance with the current certification regulation?

 

[Scapegoat]

Transport catagory aircraft are either,

Jets with 10 or more seats or a Maximum Takeoff Weight (MTOW) greater than 12,500lb; or

Propeller-driven airplanes with greater than 19 seats or a MTOW greater than 19,000lb.

 

[PreRVSM]

The TCDS will state transport category on the top of the first page if it is. Some small jets like the Sabre were transport category aircraft.

 

[bocefus]

Transport catagory aircraft are either,

Jets with 10 or more seats or a Maximum Takeoff Weight (MTOW) greater than 12,500lb; or

Propeller-driven airplanes with greater than 19 seats or a MTOW greater than 19,000lb.

Really? Where do we find this definition? You mean that a FAR 29 certificated
transport category helicopter is not an AIRCRAFT? As I said, the definition of "Transport Category" Depends of the context in which it is used.

 

[time builder]

Transport catagory aircraft are either,

Jets with 10 or more seats or a Maximum Takeoff Weight (MTOW) greater than 12,500lb; or

Propeller-driven airplanes with greater than 19 seats or a MTOW greater than 19,000lb.

Where do you find this information?
Sounds believeable, but I'd like to see it written somewhere specifically.

 

[Scapegoat]

Answer to Transport Catagory

After looking thru countless FAR's I found the answer on FAA.GOV under FAQ's. It had it on there and that is what I posted above. I have yet to find it in the book. If you do find it let us know.....SG

 

[transpac]

Really? Where do we find this definition? You mean that a FAR 29 certificated
transport category helicopter is not an AIRCRAFT? As I said, the definition of "Transport Category" Depends of the context in which it is used.

Don't really want to join in further on your disagreement, but you're incorrect about the definition of a Transport Category aircraft. This term has nothing to do with context and everything to do with the certification regulations that are applicable to the approved design. Its pretty simple to determine the category of a particular make and model aircraft as this is listed on its Type Certificate Data Sheet. The B-727 TCDS lists it as a Transport Category aircraft. As far as CAR-4b goes, it and all other CARs were published as FARs sometime after the FAA was established in 1958. FAR 25 has evolved over the years, but the original was pretty much a reprint of CAR-4b.

 

[time builder]

Found it on the web:
http://www.faa.gov/aircraft/air_cert/design_approvals/transport/
thanks scapegoat, my other question is what load factors does this imply, or is it more for computing 55%/65% of available wet/dry runway? (not required for normal category)
Also, I saw it refered to part 125, which was pointed out earlier. I thought that section was for aircraft with over 6000 pounds payload, why not just say transport category aircraft and list the definition right there?

 

[bocefus]

Ohhhhhh. So, according to the FAA definition that you provided the link to, an F-86 and a T-33 are both "Transport Aircraft". Both jets, and both gross over 12,500. I get it now.