Most popular categories of LSA are:
- weight-shift control trike,
- powered parachute and
Different classes within the LSA categories are
- land and
- sea (water).
Sport pilots can add a category or class easily by being trained by one authorized CFI and taking a proficiency check with a separate authorized CFI. An authorized CFI is a flight instructor who can teach the category and class of aircraft sought. For sport pilots, you do NOT have to take a checkride with a FAA Designated Pilot Examiner (DPE) to add a category or class. Two separate CFI’s are allowed. There are no minimum flight training hours required to change category or class. The proficiency check is the same as a checkride with all the same oral and flight tasks, except it is performed by a CFIS rather than a FAA Examiner.
For example: A sport trike pilot can become a sport airplane pilot by being trained by one CFI and taking a proficiency check with another CFI. No minumun flight training hours and no knowledge test required. The second CFI provides a log book endorsement for the new category and/or class.
Another example is a private pilot airplane who wants to fly a trike at the sport pilot level. The private airplane pilot would be trained by one trike CFI and take a proficiency check with another trike CFI. The second CFI would provide a log book endorsement. However, the new trike rating would only be for sport pilot trike privileges per §61.303 and §61.315, not private pilot privileges (to fly at night or over 10,000 feet MSL as examples).
To add a private pilot new category per §61.63 (b) such as trike to airplane, all the aeronautical experience (dual training and solo time requirements) must be met per §61.109, by an authorized flight instructor and a checkride must be taken with an FAA examiner. It is almost like starting from the beginning except no new knowledge test is required to add private pilot categories.
Adding a private pilot class, land to sea or sea to land per §61.63 (c), is the same as adding a class except there is no minimum flight training hours. Must be trained by one CFI and take a checkride with an FAA examiner.
For the sport pilot and the private pilot wanting sport pilot privlages the actual FAA regulation is:
§ 61.321 How do I obtain privileges to operate an additional category or class of light-sport aircraft?
If you hold a sport pilot certificate and seek to operate an additional category or class of light-sport aircraft, you must—
(a) Receive a logbook endorsement from the authorized instructor who trained you on the applicable aeronautical knowledge areas specified in §61.309 and areas of operation specified in §61.311. The endorsement certifies you have met the aeronautical knowledge and flight proficiency requirements for the additional light-sport aircraft privilege you seek;
(b) Successfully complete a proficiency check from an authorized instructor other than the instructor who trained you on the aeronautical knowledge areas and areas of operation specified in §61.309 and §61.311 for the additional light-sport aircraft privilege you seek;
(c) Complete an application for those privileges on a form and in a manner acceptable to the FAA and present this application to the authorized instructor who conducted the proficiency check specified in paragraph (b) of this section; and
(d) Receive a logbook endorsement from the instructor who conducted the proficiency check specified in paragraph (b) of this section certifying you are proficient in the applicable areas of operation and aeronautical knowledge areas, and that you are authorized for the additional category and class light-sport aircraft privilege.