Dear Sir or Madam:

The following is additional information for Docket No. FAA-2014-0765.

Make and Model of Aircraft:

The aircraft is a model T600 DJI Inspire 1 aircraft weighing 2935 g (including battery). The 

aircraft can fly for roughly 18 minutes running off of four DJI 3510 motors. The propeller model is 

DJI 1345. The device carries a detachable camera and camera gimbal, model ZENMUSE X3 

made by DJI. The length x height x width dimensions of the Inspire 1 without the propellers 

attached are 44 x 30 x 45cm (17.3 x 11.8 x 17.7in). It has a diagonal distance between 559 and 

581 mm.

Aircraft Cruise Speed:

The DJI Inspire 1 has a max speed of 22 m/s under no wind conditions with a max ascent speed 

of 5 m/s. The max descent speed is 4 m/s. The Inspire 1 has a max wind speed resistance of 10 

m/s. The aircraft has a max tilt angle of 35 degrees.

Radio Frequency Spectrum:

The operating radio frequency spectrum is 5.728-5.850 GHz, 2.400-2.483, and 922.7-927.7 

MHz (Japan Only). The transmitting distance in an outdoor, unobstructed setting is 2 km. The 

EIRB is 10dBm@900m, 13dBm@5.8G, and 20dBm@2.4G.

Proximity to Airports:

The aircraft will not be flown within 1.5 miles of any large international airport. This includes 

airports such as San Francisco International Airport or John F. Kennedy International Airport. 

From 1.5 miles to 5 miles away from an airport, an increasing height limit is programmed into 

the aircraft that ranges from 35 feet at 1.5 miles to 400 feet at 5 miles. The aircraft has a GPS 

ability to triangulate it’s position and prevent it from launching within 1.5 miles of a large airport, 

or launch within .6 miles of smaller airports. Because of this, the aircraft will never be flown 

within this range. If the aircraft is flown between 1.5 miles and 5 miles of a large international 

airport, the airport air traffic control tower will be given prior notice of the flight. The aircraft is 

always flown within visual line of sight of the operator and will always yield to manned aircraft.

This information follows the “Dos” and “Don’ts” of flying an unmanned aircraft system found on 

FAA.gov. Further information can be found on the aircraft manufacturer’s website at http://

www.dji.com/fly-safe/.

Pre-flight Inspection:

To determine if the UAS is airworthy, a pre-flight inspection will be conducted before each flight. 

The aircraft and each piece of equipment used in the operation of the aircraft will be inspected 

beforehand. The exterior will be examined for any loose, damaged, or torn material. The aircraft 

will not fly if there is any sign of structural damage. The visual inspection will include the 

covering, landing gear, landing skids, propellers, propeller motors, and aircraft housing. The 

controller will be examined as well for its physical condition.
All flights will begin with a fully charged battery. Only batteries rated for the aircraft will be used 

in temperatures between -10 to 40 degrees C. If the flight is going to be flown in cold 

environments, the aircraft will be powered on and be allowed to warm up for approximately 1-2 

minutes before taking off according to the manufacturer’s manual.

The aircraft will be powered on along with the controller. The landing gear will never be raised 

while on the ground. When the aircraft is turned on and linked with the controller, the aircraft’s 

internal compass will be calibrated and not be flown until the calibration is successful. The 

aircraft will be placed on its launch location and the throttle will be gently applied to make sure 

all propellers begin rotation in their expected manner. If there is any visual or audible sign that 

the aircraft is not operating as it should, the aircraft will be immediately powered off and not be 

flown. If the aircraft is performing as expected, the aircraft will ascend 5 to 10 feet off of the 

ground and hover in place. Once the aircraft is hovering, the operator will have the aircraft move 

forward, back, left, and right to make sure the aircraft is airworthy and performance is as 

described in the operations manual. If any control input results in unexpected aircraft output 

during this evaluation, the aircraft will immediately land. Otherwise, the aircraft will be deemed 

airworthy. Logs will be kept of any previous maintenance or repair work on the aircraft, aircraft 

controller, and aircraft battery.

Aircraft Operations Manual:

The aircraft operations manual for the DJI Inspire 1 can be found online on the manufacturer’s 

website:

http://download.dji-innovations.com/downloads/inspire_1/en/

Inspire_1_User_Manual_v1.0_en.pdf

Sincerely,

James Ferrandini

208 San Rafael Ave.,

San Rafael, CA 94901

(415) 686-1666