Wunder Family Enterprises, LLC

123 Goucher Terrace

Gaithersburg, Maryland 20877

November 30, 2015

U.S. Dept. of Transportation

Docket Management Systems

1200 New Jersey, Avenue, SE

West Building Ground Floor, Room W 12-140

Washington, DC 20590-0001

SUBJECT: Petition for Section 333 Exemption of the FAA Modernization and Reform Act 

of 2012 

I, Michael Wunder, of 123 Goucher Terrace in Gaithersburg, Maryland 20877, hereby petition 

the FAA for a Section 333 exemption from various sections of 49 USC of Federal Aviation 

Regulations.

Pursuant to Section 333 of the FAA Modernization and Reform Act of 2012, Public Law 112-95, I 

request certain exemptions in order to conduct house and cell tower inspections using two small 

UAVs, the DJI Phantom 2 Vision+ and the DJI Phantom 3 Professional.

Sincerely,

Michael Wunder

President

Wunder Family Enterprises
OVERVIEW:

I, Michael Wunder, of 123 Goucher Terrace in Gaithersburg, Maryland 20877, hereby petition 

the FAA for an exemption from various sections of 49 USC of Federal Aviation Regulations.

I am president of Wunder Family Enterprises, an aerial video and photography company 

specializing in utility inspection. Wunder Family Enterprises has been in business for three 

years, and is committed to responsibly, professionally, and safely operating a small UAV for 

house and cell tower inspections. 

Wunder Family Enterprises is committed to public safety and respecting personal privacy. An 

example of that commitment is our thorough pre and post flight protocols that we closely adhere 

to on every mission. The Pilot in Charge (PIC) will possess either an airline transport, 

commercial, private, recreational, or sport pilot certificate. The PIC will also hold a current FAA 

airman medical certificate or a valid U.S. driver’s license. 

As the president of Wunder Family Enterprises, I am extremely sensitive and aware of the 

importance of safety and privacy, especially as it relates to UAVs. I believe safety is the first and 

overriding priority in regards to operating a UAV. Additionally, the PIC would not operate a UAV 

in a manner as to invade the privacy of anyone unaware of our flight intentions. 

GEOGRAPHIC AREA OF OPERATION:

Our primary area of operation is the Mid-Atlantic and Northeast United States. 

When performing cell tower inspections, the flight will likely take place in a rural setting. When 

performing house inspections, the flight will take place in either an urban or rural setting. 

Additionally, each flight will be limited to 100-feet AGL, since the purpose of our operations is to 

capture detailed imagery of a cell tower or house. 

When necessary, we will notify and seek approval of airport personnel as required by FAA 

regulations. 

UAV INFORMATION:

The DJI Phantom 2 Vision+ and DJI Phantom 3 Professional are lightweight (both under 2.9 

lbs.), battery-operated, four-motor rotorcraft in the form of a quadcopters that take off and land 

vertically. Both UAVs include the following safety features: 

• An on-board flight computer with GPS navigation and location ability that receives signals 

for flight controls from a ground-based transmitter/controller;

• An on-board camera capable of capturing imagery in the form of full color, high definition still 

photos and video;
• An on-board telemetry system that delivers flight data from the on-board flight computer to 

the on-board radio transmitter including altitude AGL, horizontal and vertical speed, 

compass direction of flight and direction back to its launch site;

• An on-board radio transmitter (5.8GHz for the DJI Phantom 2 Vision+ and 2.4GHz for the 

DJI Phantom 3 Professional) that transmits live video from the on-board camera plus all the 

flight data from the telemetry system described above.

UAV GROUND SYSTEM:

• A Pilot in Charge (PIC) in operational control of a flight operation from beginning to end and 

who controls the UAV while in flight;

• A Visual Observer (VO) that provides a second pair of eyes to visually track the UAV while in 

flight;

• A radio transmitter/controller operated by the PIC to control the UAV while in flight;

• A monitor that receives live video and flight data from the UAV while in flight.

PRE-FLIGHT CHECKLIST:

• When required, notify the appropriate FAA facility of our launch schedule and location.

• Survey the area of operation for hazards - trees, utility poles and other obstacles that might 

compromise the flight, then make a judgment as to whether to proceed.

• Check the weather for wind speed, cloud cover and any forecast changes that might 

adversely affect flight safety and performance.

• Examine the aircraft ⎯ looking at connections and searching for cracks and loose parts.

• Determine that the electronic elements are performing correctly.

• Determine that the barometric altimeter reflects approximately 0 feet AGL.

• Following takeoff, the PIC will hover at an altitude of approximately 10 feet to assure that the 

home return point is established.

• Exercise all controls to confirm their functionality ⎯ if one of the controls is not functioning, 

the mission will be terminated immediately.

• Operate with a Visual Observer (VO) alongside the PIC who will double-check for possible 

flight hazards. The VO will provide a second pair of eyes to assist the PIC in keeping the 

UAV within Visual Line of Sight (VLOS). The VO will also assist in any emergency 

maneuvers due to unanticipated events that require a quick landing.

SAFETY AND PRIVACY PROTOCOLS:

• Will not fly over dense traffic or crowds.

• Will give right-of-way to any manned aircraft.
• Will stay clear of FAA controlled airspace at airports (generally a five nautical mile radius), as 

well as restricted and prohibited zones.

• Will fly no higher than 400 feet and no further than 1000 feet from the home point, 

recognizing that the primary responsibility is to safely keep the aircraft within VLOS.

• Will perform a post-flight check of the UAVs to determine the physical and electronic 

condition.

• Gain express permission to fly above any and all property within flight plan.

• Follow a preflight checklist confirming battery charge, propeller connection, motor function, 

etc.

• Calibrate compass before each flight.

• Never fly in high wind or threat of precipitation.

• Always set maximum height and radius flight limits in intelligent controller after analyzing 

site.

• Use audible alarms of low battery warning from the controller to bring copter back and land 

well before battery drains.

EXEMPTION REQUEST:

I respectfully request exemption from the following regulations with which I cannot fully comply:

14CFR

Part 21 Airworthiness Certification

Subpart H "prescribes the procedural requirements for issuing and changing design approval, 

production approval, airworthiness certificates and airworthiness approval."

Response: "The Secretary of Transportation has determined that this aircraft meets the 

conditions of Section 333. Therefore, the FAA finds that the requested relief from 14 CFR part 

21, and any associated noise certification and testing requirements of part 36, is not necessary."

Part 61 (a)(b) Parts, General Operating and Flight Rules

(a) Prescribes the requirements for issuing pilot licenses and the privileges and limitations 

associated with various ratings.

(b) Aeronautical experience means pilot time, flight simulator or flight training device for meeting 

the appropriate training and flight time requirements for an airman certificate.

Response: Organized or commercially available FAA-approved flight training has yet to be 

achieved by the UAV industry. The PIC’s sources of training are: the flight instruction manuals 

from the UAV manufacturer; online videos from the manufacturer as well as videos from users; 

and most importantly, personal training in a secure location - an open area not subject to traffic 

and/or uninvolved individuals.
Those training flights, which have averaged 20 minutes each, include setup, physical and 

electronic safety checks; lift off followed by hovering at approximately 10 feet to confirm that the 

GPS system is functioning properly and has registered its Home Point; a prescribed flight plan 

to familiarize and then master the fight controls and camera; returning to the launch point and 

landing. I then conduct a post-flight inspection for any problems, log the location and flight time 

and then view the video. There are no FAA certified instructors or FAA certified study guides 

available at this time as the technology continues to develop. I respectfully request an 

exemption from this rule.

§91.103 (b)(2)

(b)(2) This section deals the pilot's preparations for flight, in particular runway lengths, takeoff 

and landing distance information.

Response: Since a quadcopter, like a helicopter, takes off and lands vertically, the PIC would 

not need to know this information since there are no runways involved and the return from flight 

is the takeoff point. The FAA has determined that "relief is not necessary."

§ 91.105

Summary: This section deals with flight crew members at stations.

Response: Since there are no passengers, pilots or crew members, I respectfully request relief 

from this regulation.

§ 91.109

Summary: This sections deals with flight instruction, simulated instrument flight and certain 

flight tests.

Response: None of these functions are applicable to a quadcopter flight and, as stated earlier, 

there are no FAA certified instructors or FAA certified study guides available at this time for 

quad-copter operation. I respectfully request an exemption from this rule.

§ 91.119 (a) (b) (c)

Summary: This section deals with minimum safe altitude stating that if the power fails 

anywhere, an aircraft should have an altitude sufficient so that an emergency landing can occur 

without hazard to persons or property (91.119 a).

It also sets minimum altitudes over congested areas and uncongested areas as well as has a 

paragraph on helicopters (91.119 b). It also sets minimum distance (500 feet) from any person, 

vessel, vehicle, or structure (91.119 c).
Response: None of the altitude requirements in this regulation should apply to our UAVs since 

these aircraft are required to fly below those altitudes. Their weight, speed and GPS-controlled 

Return to Home feature mitigates incidents that could occur from loss of signal between the 

aircraft and PIC. A manned aircraft is much heavier and larger than our UAVs. If our UAVs were 

to malfunction, they carry no humans, no explosive fuel and since they fly primarily over a single 

piece of private property, any damage would likely be minimal and confined to that area. As 

mentioned, the PIC will possess either an airline transport, commercial, private, recreational, or 

sport pilot certificate. These licenses will provide the PIC with sufficient skills to safely manage 

any approach under 500 feet. In addition, access to the property is strictly controlled (warning 

sign and the clearing of any person on the property not involved in the flight). I respectfully 

request an exemption from this rule.

§ 91.121

Summary: This section details altimeter settings required to maintain the “cruising altitude or 

flight level of that aircraft." It requires that the "elevation of the departure airport" be set in the 

altimeter or the "current reported altimeter setting of a station along the route and within 100 

miles of the aircraft”.

Response: A UAV cannot comply fully with this section's altitude requirements. Our UAVs are 

equipped with a barometric altimeter which automatically calculates the takeoff altitude (0 AGL) 

when the aircraft is warmed up ⎯ the launch point becomes the "elevation of the departure" 

point. The altitude of the UAV is visible in the control monitor by the PIC before launch and is 

consistently updated as the flight progresses. I respectfully request an exemption from this rule.

§91.151

Summary: This section deals with fuel requirements for VFR flights stating, among other things, 

that "no person may begin a flight in an airplane under VFR condition unless...there is enough 

fuel to fly to the first point of the intended landing and, “...fly after that for at least 40 minutes 

(day) and 45 minutes (night)".

Response: This regulation deals with 'reserve' fuel. This could include any condition that 

increases flight time or fuel consumption. Weather would be one factor including wind, 

turbulence and the necessity to divert around threatening thunderstorms.

Compliance with this regulation is not possible because the 'fuel" onboard our UAVs is not 

aviation gas but a DC battery with a maximum flight duration of 25 minutes for the DJI Phantom 

2 Vision+ and 23 minutes for the DJI Phantom 3 Professional. Fuel management of a UAV 

requires constant monitoring of the battery's state-of-charge and bringing it home before it 

reaches the manufacturer’s recommended 30-percent level. In our training flights, we've found 

that a flight of 10-15 minutes to be safe, returning the UAV to its Home Point around the 40-

percent level. I respectfully request an exemption from this rule.
§ 91.405

Summary: This section deals with aircraft maintenance including regular inspection, the 

keeping of appropriate maintenance records and replacement of inoperable instruments

Response: Maintenance on our UAVs is quite straight forward. If, in landing, a rotor blade or 

two are damaged, they are quickly replaced. The traditional instrument cluster in an aircraft is 

replaced by a data stream from our UAV, visible in the control monitor.

Replacement of minor parts are performed by the PIC and a major 'overhaul' that can’t be easily 

resolved will go back to the manufacturer for repair. Currently, there are no required inspections 

by 'authorized' maintenance personnel and there would be no space/room on board to install a 

placard of inoperability. I respectfully request an exemption from this rule.

§ 91.407

Summary/Response: This section addresses requirements after maintenance has been 

performed. Again, approval of the maintenance before flight is essentially in the hands of the 

PIC.

Whatever maintenance is performed will be entered in the aircraft log, unless a separate 

maintenance log is required. Paragraph (b) refers to the prohibition of a pilot carrying 

passengers or crew members, if the flight characteristics have been substantially affected, 

before a rated pilot performs an operational check of the maintenance.

Again, this is a PIC's responsibility to preflight the UAV and determine its flyability. And, as 

mentioned earlier, there is no pilot, crew members or passengers on-board our UAVs. I 

respectfully request an exemption from this rule.

§ 91.409

Inspections: This section deals with the necessity of annual and 100-hour inspections or 

"progressive inspections" and approval by authorized persons which will lead to the "issuance of 

an airworthiness certificate."

Response: As stated earlier, there is no FAA approved inspection protocols nor authorized 

inspection personnel. The PIC handles those issues each time our UAVs are prepared for flight.

The pre-flight check list enumerated earlier will be followed to determine its mechanical and 

electronic integrity. I respectfully request an exemption from this rule.

§ 91.417
Maintenance Records: This section requires a maintenance record be kept on repair, 

replacement and condition of vital parts (rotors, engines & airframe). Certain records must be 

retained for one year while other records must be kept with the aircraft even when sold to 

another part.

Response: The details of this section would be impractical with our UAVs, but repair issues can 

be entered into the aircraft log. I respectfully request an exemption from this rule.

The above requests for exemptions follow the guidance published by the FAA.

COMMUNITY BENEFIT:

First and foremost is the level of safety offered by the use of a small UAV in comparison to a 

manned fixed wing or rotorcraft. Weighing less than three pounds with camera and battery, our 

UAVs are incapable of causing the level of damage or injury caused by a full-size, manned 

aircraft. In regards to cell/utility tower inspections, a small UAV is a much safer alternative to 

placing a human in a dangerous environment. Additionally, the ecologic and noise impact is 

negligible as compared to traditional manned aircraft. Economically, small UAVs are the most 

cost-effective solution for house and cell tower inspections, making aerial videography more 

affordable for the businesses we serve. 

Respectfully,

Michael Wunder

President, Wunder Family Enterprises

Attachments:

DJI Phantom 2 Vision+ User Manual

DJI Phantom 3 Professional User Manual

DJI Phantom 3 Professional Intelligent Flight Battery Safety Guidelines