On this episode of AvTalk, whale songs, a Vulcan howl, Chewbaca’s greeting—whatever you want to call it, Graham Webb from Pratt and Whitney joins us to explain the Geared Turbo Fan’s distinctive noise. We also discuss November traffic numbers, new movement on the 737 MAX’s return to service, and new rules for animals in the cabin on US flights.

November air traffic review

November commercial traffic was down 40% from 2019, but the Thanksgiving holiday did see a slight bump.

Brazil clears the 737 MAX

Brazil’s aviation regulator has cleared the 737 MAX to return to commercial service. GOL expects to begin flights on 10 December.

Volga Dnepr grounds An-124 fleet

Following an uncontained engine failure on one of its An-124s, Volga Dnepr Airlines has grounded its entire fleet of the cargo carriers. No preliminary cause has been determined for the failure in Novosibirsk last month, so the airline is acting out of an abundance of caution.

The whale song explained

Graham Webb, Vice President and General Manager of the regional jet geared turbofan engine program at Pratt and Whitney joins us to explain exactly what Jason and Ian have been hearing when an aircraft with Pratt and Whitney GTF engines passes overhead.

Emotionally unsupported

New rules issued by the US Department of Transportation this week will curtail the number of ‘emotional support animals’ in the cabin on US airlines. We discuss the new rules and changes we’re hoping to see.

The Airchive – an avgeek paradise

If you’re looking for a great way to spend a vast amount of time, take a trip to The Airchive. Curated by aviation journalist Chris Sloan, the site features historical models, ephemera, maps, photos, and more through the history of aviation.

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