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Good morning, San Francisco!

From 2am today (local), the airspace in San Francisco will look very different.

There are some substantial changes to the airspace around San Francisco that came into effect at 2am local time this morning.

Most of these changes are to airspace above 400’, but the most significant change for drone operators is that the Class B volume around SFO changed shape. This is particularly important as Class B affects both Part 107 and recreational (Part 101) drone pilots. The good news is that the volume actually got smaller, but as most of the reduction sits over the Golden Gate National Recreation Area National Park, you might not actually be able to make use of the 300 billion cubic feet that just got handed back to you!

Removing everything but Class B airspace, SFO now looks like this:

Check out,-122.3438749,12 for the full, up-to-date picture.

Altitude Angel

Altitude Angel

Altitude Angel is an aviation technology company delivering solutions which enable the safer integration and use of fully automated drones into airspace. Through its Airspace Management platform, GuardianUTM O/S, they deliver the essential software platform which enable national deployments of USpace compatible services, safely unlocking the potential of drones and helping national aviation authorities and air navigation service providers to establish new services to support the growth in the drone industry.  

The foundation components of GuardianUTM O/S are also available to enable third-party UTM developers, drone manufacturers and software developers to incorporate enterprise-grade data and services into their UTM solutions.  

Altitude Angel was founded by Richard Parker in 2014 and is headquartered in Reading, UK.  

Altitude Angel’s developer platform is open and available to all at


For further information please contact:

Stephen Farmer, Altitude Angel, Head of Corporate Communications & PR

+44 (0)118 391 3503

[email protected]