Aerospace & Defense Technology - May 2021 - 19

2-5 can have missions
requiring integration into
controlled airspace and if
so, will require a transponder for visibility by ATC and
TCAS. For military UAS,
transponder need is determined
by military mission controllers.
2. What kind of aircraft is it? Beyond size and weight, UAS can come
in many formats, ranging from the
familiar military surveillance drone
to weather balloons, high altitude
pseudo-satellites, eVTOLs, and a
whole host of other aircraft classes
that are currently flying or in design.
With airspace increasingly crowded,
if an aircraft of any kind will fly or
operate in or through controlled airspace, its operators and others will
need to keep track of it for safety reasons and will need a transponder, unless otherwise directed by the FAA.

control permission. Operations in
Class B, C, D and E airspace need ATC authorization. " In addition to a transponder,
the FAA mandates: " You must be equipped
with ADS-B Out to fly in most controlled airspace. " If an aircraft flight plan requires ATC services,
it will need a transponder to provide visibility to ATC.
5. What airspace rules apply? The military defines its own
Military Operations Area (MOA) airspace requirements for un-

FL 600
18.000 MSL

3. How far will the aircraft fly?
UAV operation falls into two scenarios - those flown within line of sight
and those flown BVLOS. If a program
requires flight BVLOS a transponder
will most likely be required for keeping track of it as well as increasing
the safety of nearby aircraft.

CLASS E 10,000 MSL and above ADS-B Required

2,500 AGL
ADS-B Not Required

CLASS E
ADS-B
Required

CLASS B
CLASS C

10,00O MSL
3,000 MSL

ADS-B
Required

ADS-B
Required

12NM From
Coastline

10,00O MSL
Surface

10,00O MSL
Surface

Gulf of Mexico

Mode C Veil
ADS-B
Required

30NM

Key

4. How high will the aircraft fly?
U.S. airspace is organized by altitude
and proximity to airports. According to
the FAA, " Operations in Class G airspace are allowed without air traffic

CLASS A ADS-B 1090 ES Required

10,00O MSL
Surface

AGL: Above Ground Level; FL: Flight Level; MSL: Mean Sea Level; NM: Nautical Mile

Airspace Requirements Chart

Aerospace & Defense Technology, May 2021

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Aerospace & Defense Technology - May 2021

Table of Contents for the Digital Edition of Aerospace & Defense Technology - May 2021

Aerospace & Defense Technology - May 2021 - Intro
Aerospace & Defense Technology - May 2021 - Sponsor
Aerospace & Defense Technology - May 2021 - Cov1
Aerospace & Defense Technology - May 2021 - Cov2
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Aerospace & Defense Technology - May 2021 - Cov3
Aerospace & Defense Technology - May 2021 - Cov4
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