What are the weight restrictions for a small UAS including everything on board at the time of takeoff?

  • As long as the maximum takeoff weight is under 55 lbs and follows procedures for safe flying.

  • No, in 14 CFR 107.37 any operation that creates a collision hazard is not allowed.

  • Yes, provided that the operatior is following all other rules this is allowed.

  • Our definition of "Operating" begins from drone takeoff and ends once the drone has landed. Operation not specified by FAA.

  • No, carrying living creatures creates possibility of serious injury or death.

  • Certificate holder is the PIC. No, one PIC per aircraft

  • Yes, changing PIC during flight is allowed as long as each PIC has a drone license.

  • Yes. For UC policy-add into preflight planning or request

  • No, if the person is not part of the ground crew ensuring a safe operation they are not a participant and must be under a structure if the drone is flying overhead. The person may spectate closely if they are under a covered structure.

  • No, operation is restricted to daylight hours and civil twilight given that the UAS has lights that can be seen from 3 statute miles away

  • In order to legally operate at night you must submit a 107.29 waiver to the FAA

  • No, sense and avoid technology does not satisfy the see and avoid requirement

  • Under current US Law, a US owned aircraft but flown by an international student is considered a foreign civil aircraft.  An international student must first apply with the Office of the Secretary Foreign Air Carrier Licensing Division for permission. The UC Center of Excellence on UAS Safety is actively seeking clarification and the implementation of a process that is more suitable for the international students of the UC system.

  • Yes, while outdoors the UAS is subject to the FAA's authority and having exceeded the 55 lb restriction would be a violation.

  • The FAA does not regulate indoor airspace, but each time the UAS exits the area it must be compliant with the appropriate laws.

  • A covered structure that prevents access to the national airspace system.

  • The FAA is the final adjucator. If you suspect unsafe activity, inform local law enforcement or the FAA to make a report. Local law enforcement may request a pilot to cease activities if harm is imminent.

  • All Civil Aircraft under 55 lbs.

  • As long as it has been determined prior to the flight that the maneuver will not cause an undue hazard to people or property it is legal.

  • Cluster drones are not outlawed by the FAA, however, one PIC will need to take control of each individual group drone grouping. Should they reform into one cluster only one PIC will be needed at that time.

  • Yes, but then the system would be classified as an airship and subject to  those laws (part 91).

  • It is as the pilot sees fit to immediately remedy the situation, a written report must be submitted to the FAA about the incident and why protocol was changed

  • No, the operation is considered unacceptable and potentially hazerdous.

  • Under strict operations, using a drone for practice can be acceptable only after making negative consequences extremely improbable.

  • With an attached parachute, a t-shirt can be dropped, but drones can't be flown over people.

  • As long as the doors are closed, then they do not follow part 107 laws. Once they open, the building is no longer a covered structure which make 107 laws apply.

  • Special permission would be needed from the FAA because the drone is making a collision with another drone.

  • Yes, because a glider is considered an aircraft.

  • Yes, as long as the PIC keeps visual line of sight.

  • This is allowed so long as the total weight of the drone and waggon is less than 55 lbs.

  • The weight of the small unmanned aircraft includes everything that is on board or otherwise attached to the aircraft and may be lifted. Everything connected would account as one mass.

  • It does count as compensation and would thus be subject to Part 107

  • No, the FAA has a ban on all UAS flights below 3,000 ft. within 3 nautical miles of a stadium with a seating capacity of 30,000 people or more. The operator will also be subject to the AMA restrictions of operation.

  • For under $50,000 the time limit is typically 6 months from the incident, for over $50,000 the time limit is 5 years from the time of the incident

  • Yes and no, the FAA doesn’t have jurisdiction over what is considered trespassing. However, state and local authorities may have trespassing laws that you may be in violation of. For instance, in CA it is illegal to use a UAS for the purpose of trespassing and spying on people during private or personal matters irregardless of whether a video or image was saved. (https://leginfo.legislature.ca.gov/faces/billTextClient.xhtml?bill_id=20...)

  • No, the FAA will take your application to the TSA after the exam should you have a sufficient score to pass

  • Yes, as long as the performances are done under safe conditions.

  • Yes, the fuel is included with the max takeoff weight of the drone.

112 Woodland Rd. Fredericksburg, VA 2240 I

November 20, 2017

Ms. Lorelei Peter Manager, AGC-200, 9th floor 800 Independence Ave., S.W.

Washington, DC 20591

Subject: Legal Interpretation of 14 CFR Part 107 definition of sUAS legal takeoff weight

Dear Ms. Peter;

It has come to my attention that there are various interpretations/opinions of what constitutes the not-to-exceed takeoff weight for a small unmanned aircraft system (sUAS) as defined in §107.3. The specific definition in question is “Small unmanned aircraft means an unmanned aircraft weighing less than 55 pounds on takeoff, including everything that is on board or otherwise attached to the aircraft.”

The specific interest lies when the sUAS has the positive buoyancy characteristics of an airship incorporated into its design. For example, if the weight of the sUAS prior to inflation of the helium envelope is 54 pounds, and the helium envelope provides 30 pounds (ignoring the weight of the helium) of “positive” buoyancy does the sUAS weigh 54 pounds or 24 pounds at takeoff?

If I were to have the sUAS on a weight scale just prior to launch, the scale would read “24 pounds”, not “54 pounds”. Note that the vehicle, in its ready airworthiness state for takeoff, includes the helium buoyancy. Also, loss of buoyancy during flight would be recognizable as a non-normal condition, subject to an immediate landing by the remote pilot in command.

This question is important for two reasons; (1) so as not to be violated by an airworthiness inspector, and (2), to allow “trade space” to use the difference between the 54 pounds and 24 pounds to supp0rt design options and future customer needs, such as larger and heavier batteries for longer missions times, for example Homeland Security applications.

Your attention to this legal interpretation is greatly appreciated!
Sincerely;

Richard E Jennings
President, REJ Aviation Services, Inc.

Response from the FAA

March 13, 2018

Mr. Richard E. Jennings 112 Woodland Road Fredericksburg, VA 22401 Dear Mr. Jennings: Office of the Chief Counsel 800 Independence Ave., S.W.

Washington, D.C. 20591

This letter provides a response to your request for clarification concerning “what constitutes the not-to-exceed takeoff weight” for purposes of operations conducted in accordance with 14 CFR part 107-Small Unmanned Aircraft Systems. Specifically, you quote the definition of “small unmanned aircraft” codified at§ 107.3, which states a small unmanned aircraft is one “weighing less than 55 pounds on takeoff, including everything that is on board or otherwise attached to the aircraft.” Your request for clarification presents an example of a small unmanned aircraft that weighs 54 pounds prior to inflation of the helium envelope. You further state, “the helium envelope provides 30 pounds (ignoring the weight of the helium) of ‘positive’ buoyancy” and ask whether the small unmanned aircraft in such a case weighs 54 pounds or 24 pounds at takeoff.

In the Operation and Certification of Small Unmanned Aircraft Systems, 81FR42064 (June 28, 2016), the FAA finalized its definition of “small unmanned aircraft” to include aircraft that weigh less than 55 pounds on takeoff The FAA noted other regulations use the term “on takeoff’ to mean the “total takeoff weight.” Id. at 42086 (referring to the definitions of “large aircraft,” “light-sport aircraft,” and “small aircraft” codified at 14 CFR § 1.1, because those definitions use the phrase “maximum takeoff weight” or “maximum certificated takeoff weight”). Based on the plain meaning of § 107.3, therefore, the small unmanned aircraft you describe would weigh at least 54 pounds on takeoff; the operator of the small UAS would need to consider the weight of the helium on board the aircraft in determining the total weight.

The FAA intended to apply part 107 to operations of small UAS that present only a minor risk to people. In promulgating part 107, the FAA stated the measurement of weight on takeoff ensures a risk-based application of part 107 to the most suitable category of lowrisk small UAS operations; in this regard, “in the event of a crash, a heavier aircraft can do more damage to people and property on the ground than a lighter aircraft.” 81 FR at 42086. As a result, in accordance with direction from Congress, the FAA stated that part 107 applies only to operations of small unmanned aircraft that weigh less than 55 pounds on takeoff. Pub. L. 112-95 § 331(6) (Feb. 14, 2012). The FAA clarified, “it is the total mass of the small unmanned aircraft that is important; the manner in which that mass is achieved is irrelevant.” 81 FR at 42086. As a result, the weight of the small unmanned aircraft on takeoff refers to the aircraft’s total mass.

I understand your desire to use “positive buoyancy” as a means of decreasing the weight of the small unmanned aircraft. For purposes of§ 107.3 and Public Law 112-95 § 331(6), however, the FAA does not consider such buoyancy in the determination of empty weight, or takeoff weight. In this regard, the FAA considers the weight of the gas on the small unmanned aircraft when determining the weight of the aircraft on takeoff. This conclusion that positive buoyancy does not affect the weight of the aircraft on takeoff is consistent with the plain language of § 107 .3, as the definition of “small unmanned aircraft” therein does not mention buoyancy or other principles that may apply to lighterthan-air aircraft. The FAA’ s airship design criteria define a maximum heaviness, and a maximum lightness, which takes into account the buoyancy of the gas on board. However, these values are used for aircraft certification purposes in determining airship performance rather than the design weight. The FAA currently uses empty weight of the airship, without buoyancy, to define the weight of an airship. 1

While the aforementioned discussion is relevant to the definition of “small unmanned aircraft” under part 107, it does not indicate the FAA should decline to consider positive buoyancy in other contexts. For example, while the definition of “small unmanned aircraft” is not subject to waiver, if an applicant seeks to apply for a waiver of an operational restriction under part 107, subpart D, the risk mitigation strategy could include how the buoyancy of a small unmanned aircraft assists in ensuring safety. As such, this interpretation is limited to the definition of small unmanned aircraft under part 107.

We appreciate your patience and trust that the above responds to your concerns. If you need further assistance, please contact my staff at (202) 267-3073. This letter has been prepared by Katie Inman, Operations Law Branch, Office of the Chief Counsel and coordinated with the General Aviation and Commercial Division of the Flight Standards

Service. Lorelei D. Peter

Assistant Chief Counsel for Regulations, AGC-200

1 FAA Airship Design Criteria, No. FAA-P-8110-2 (1995), available at https://www.faa.gov/aircraft/air cert/design approvals/airships/airships regs/media/aceAirshipDesignCriteria.pdf.

Original Letter