Question about Type Certificates
Hey everyone. Are Type Certificates (TC) issued to every aircraft made or are they just issued to a new airframe design.
Thanks
Jonny
Views: 289
Replies to This Discussion
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Permalink Reply by Robert G. Lock on
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Jon,
If an airplane is to be manufactured and sold to the public it has to have a T.C. Approved Type Certificates began with ATC#1 in March 1927 and have continued to date. Aircraft that do not have a T.C are licensed as experimental or limited. Most military surplus aircraft are licensed in the Limited category (like the P-51, etc) however some military aircraft did receive a T.C during design (like the Boeing PT-13/-17, etc). T.C's can be sold to new owners, like Aeronca 7AC, ATC759, was sold to Bellanca, then Champion and then American Champion. Most all Citabria's are manufactured under a T.C that was originally issued in 1945.
Bob Lock..
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Permalink Reply by Jan Willem M. Hesselink on
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Type certificates are for planes 2000kg. and over and for multi engine aircraft.
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Permalink Reply by Shawn Coyle on
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A type certificate is given to a type design. Certificates of Airworthiness are given to individual serial number airframes.
Type certificates are based on requirements such as Part 23, 25, 27 or 29 for aircraft, Part 33 for engines. See the FAA website for more info, but be prepared to be put to sleep by the certification requirements.
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Permalink Reply by R. Steven Justice on
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To amplify on Mr. Lock's great answer, TCs are also amended from time to time to reflect changes in the base aircraft configuration or for new models of the aircraft. This is different than the Supplemental Type Certificate (STC) in that the current holder of the TC usually applies for the amendment and the changes to the TC are much more extensive than those seen in an STC (usually).
As stated by Mr. Lock, many aircraft in production today trace their original approval back to the days of the CAA and the CAR rules which were later supplanted by the FAA and FARs. For small changes to the aircraft the applicable regulations are usually grandfathered back to the original certification basis at the discretion of the FAA. For major changes the FAA can require the TC holder to step up to the most current FAR rules. This is why many older designs in production now are not updated – the cost of stepping up to the current FARs is prohibitive.
Steve Justice, P.E.
Georgia Center of Innovation for Aerospace
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Permalink Reply by Mark Gardiner on
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Type certificates are issued based on aircraft design and weight for the most part. Some are issued on required crews. Any aircraft weighing more than 12,500 lbs requires a type certificate, aircraft designated as multi pilot aircraft MAY require a type certificate, and most turbine powered jets will require a type certificate.
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Except for amateur built aircraft, all aircraft require a type certificate. None are based on required crew - that may be part of the type certificate limitations, but it is not a requirement for a type certificate.
And the basis of the type certificate is the date of application for the type certificate - it will be based on the latest amendment in force for the type (Part 23, 25, 27 or 29 for US aircraft) at the time of application. That amendment level will be used for the life of the aircraft for things such as structural design.
There typically is very little change in the basis of certification over the life of the aircraft.
Certification is a very complicated and subtle business - I worked for Transport Canada for 5 years certifying helicopters, and can say that I scratched the surface of the subject.
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Permalink Reply by Joe Hopwood on
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Permalink Reply by Danny on
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Type certificates are issued for all certified aircraft types. Exclusions are homebuilts, LSA's, ultralights, etc. The certificate is issued for the aircraft type (sometimes called the "type design" or "model"), not the individual aircraft. So, there is one type certificate for all Boeing 737, one for all Cessna 172, one for all Piper PA28, etc. Each individual airplane (i.e. each serial number), once it is manufactured and shown to meet the criteria of the type certificate, is issued an airworthiness certificate.
Does this answer your question? If not, email me at dglaser at aerodesignassociates .com. (To prevent spam emailers from identifying the address, I typed it goofy. You're probably smart enough to correct the address.)
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Permalink Reply by Robert J. McCormick on
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Read the following contained in FAR/AMT and other locations: FAR Part 21 Sub-Part B -- Type Certificates. This part will tell you all you would ever want to know about Type Certificates, their applicability, your eligibility, the application process, special conditions etc. The FAR's are available, online, at the FAA site. Good luck. They are written in typical legalese and not easy reading.
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Sorry followers, I mixed up with the Type ratings !
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Permalink Reply by Manny Weber on
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Type Certificates (TCDS) are issued to the manufacturer of aircraft under the appropriate FAR (certification basis) and are issued to a specific model/series, and not issued every time an aircraft is given an Airworthiness Certificate.
The aircraft are produced under a Production Certificate held by the manufacturer. There are exceptions to aircraft certified under a Type Certificate such as SLSA or LSA (Light Sport Aircraft) where these aircraft are built to an ASTM standard.
Every time a new aircraft design has gone through it's certification phase, it will either be added to an existing Type Certificate (by model) or there is issued a new TC.
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Permalink Reply by Jon Dickson on
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Thanks Everyone for your responses. That has cleared everything up for me.
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