14 CFR 61.327 looks like a curiously worded regulation. It has nearly identical language regulating the operation of aircraft with V_H <= 87 KCAS and aircraft with V_H > 87 KCAS. The only difference in language being that the exception in §61.327(c) only applies to operating aircraft with V_H <= 87 KCAS.

V_H is defined as the “maximum airspeed in level flight with maximum continuous power.” The FAA chose to use V_H as the limiting speed^[1] for powered, light-sport aircraft as it is “simple to verify during testing.” and is easily demonstrated^[2].

Why does the language look redundant when we know that FAA chooses regulatory wording very carefully? We need to dig into the history to understand.

Original rule making

When Subpart J was introduced in 2004^[1], it was proposed that sport pilots will receive from the FAA “a logbook endorsement for the category, class, and make and model of aircraft” in which they are authorized to act as pilot in command.

Nearly all of the numerous comments received on this topic, in response to the Notice of Proposed Rulemaking (NPRM)^[1], criticized the make and model endorsement requirement as overly burdensome and unnecessary. FAA agreed and in the final rule introduced §61.319^[3] which permitted a sport pilot to “operate any make and model of light-sport aircraft in the same category and class and within the same set of aircraft as the make and model of aircraft” for which they have received an endorsement. To fly another make and model of aircraft outside that set of aircraft but within the same category and class, §61.323 required that a pilot receive and log ground and flight training to obtain another endorsement. To pilot aircraft with V_H > 87 KCAS, a separate endorsement was required per §61.327. This concept is similar to the requirements specified in § 61.31 for additional training and endorsements (e.g., high-performance airplanes, complex airplanes).

While §61.1(b) broadly defined a set of aircraft as sharing “…similar performance characteristics…”, specifically for the purposes of sport pilot qualification in the 2004 rule making^[2] FAA stated that a working group of FAA, industry representatives, pilots, flight instructors and manufacturers will be established to develop standards for defining and establishing sets of aircraft. In 2005, the working group published the following aircraft sets for sport pilots.

§61.415(e) specified that a flight instructor with sport pilot privileges “…may not provide flight training in an aircraft unless [they] have [logged] at least 5 hours of flight time in a make and model of light-sport aircraft within the same set of aircraft as the aircraft in which [they] are providing training.” However based on feedback from the NPRM, FAA agreed that the flight instructor no longer had to receive this training from another flight instructor. FAA stated this provided a level of safety while reducing administrative and possibly economic burden. This was odd because a sport pilot required such an endorsement and an unendorsed instructor who has merely logged 5 hours on their own could provide the endorsement.

The make and model training and endorsements do not apply to pilots holding a recreational pilot certificate or higher (with the appropriate category and class rating) because their training requirements are inherently higher than that of a sport pilot.

While I haven’t seen any specific rationale for how V_H <= 87 KCAS was selected as a baseline threshold for sport pilots, it does equate to 100 mph (a nice round number) and there are a few related mentions that hint at the lower level of training and typical operations flown by sport pilots in light sport aircraft:

• The FAA believes that limiting a student pilot^[1] to V_H <= 87 KCAS for solo endorsements would establish an acceptable level of safety in view of the minimal amount of training required to be eligible for a student pilot certificate. Student pilots can be endorsed for faster aircraft with additional training and endorsement.
• Light-sport aircraft are limited to V_H <= 115 KCAS. This limits the commanded kinetic energy^[1] of an aircraft flown by a pilot holding a sport pilot certificate. Of course to fly such an aircraft (87 KCAS < V_H <= 115 KCAS) a sport pilot requires additional training and endorsement.
• The FAA believes that the operation of aircraft with V_H > 115 KCAS^[1] is more appropriate for persons who meet the training and experience requirements of at least a recreational pilot certificate.
• FAA acknowledges that a case can be made^[2] for higher or lower speed than what is being adopted. They are objectively drawing a line while considering the appropriate level of safety and the complexity of the operation.
• The purpose of the limitation on speed is to make it easier for the sport pilot to maintain aircraft control^[2]. FAA believes that at higher cruise speeds, the possibility for adverse consequences from momentary loss of control is greater.

In the final rule, light-sport aircraft maximum V_H was raised to 120 KCAS but a pilot’s 87 KCAS baseline limit was left unchanged.

Amendments in 2010

The FAA published an NPRM in 2008 to address issues with airman certification regulations that had come up since the initial rules publication in 2004. After incorporating feedback from the public, the amended rules^[4] went into effect on April 2, 2010.

The FAA agreed that the duplicative nature of currently required endorsements and proficiency checks makes a specific requirement for a make-and-model endorsement to operate any aircraft within a set of aircraft redundant. The provisions relating to issuance of make and model endorsements were eliminated. The agency believed that safety concerns can be adequately addressed through existing endorsements and a new endorsement to operate aircraft with V_H <= 87 KCAS. They did not agree that receiving training in an airplane with a V_H > 87 KCAS will adequately prepare a sport pilot to operate a low-speed, high-drag airplane with V_H <= 87 KCAS without additional training.

Since the make and model endorsement was eliminated, flight instructors with sport pilot privileges no longer have to log the 5 hours in a new make and model before providing instruction in that make and model.

This is how §61.327 evolved into today’s language. Two separate endorsements are required for speeds above and below 87 KCAS. Since the V_H endorsement was introduced many years after the initial Sport Pilot regulation, they had to introduce the exception in §61.327(c) so pilots with prior endorsement in make and model didn’t have to obtain a duplicative V_H <= 87 KCAS endorsement.

MOSAIC rules that went into effect on October 22, 2025 did not further amend §61.327.

References

1. Notice of Proposed Rulemaking (NPRM), ‘‘Certification of Aircraft and Airmen for the Operation of Light-Sport Aircraft’’ Docket No. FAA–2001–11133 (67 FR 5368; Feb. 5, 2002).
2. Background for the Subpart J regulations that were introduced in 2004. Docket No. FAA–2001–11133, July 27, 2004 in the Federal Register.
3. Original language of 14 CFR 61 when Subpart J regulations were first introduced in 2004.
4. Modifications to Rules for Sport Pilots and Flight Instructors With a Sport Pilot Rating. Document 2010-2056 (75 FR 5204) in the Federal Register.