Flight of the Felon: Is Russia's most advanced stealth fighter all it's claimed to be?

A Russian military aircraft is making an appearance at an airshow in China – provoking questions about its supposed advanced abilities.

The Su-57, also known by its Nato reporting name Felon, is appearing at the 15th China International Aviation and Aerospace Exhibition.

However, images and video of the aircraft have raised some questions online that it might actually not be as stealthy as Russia would like.

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This is the first time the fifth-generation fighter jet has been included in the biennial airshow.

Images have circulated online which seem to show various exposed screws or rivets on the aircraft, which would adversely affect its aerodynamics, speed and stealth capabilities.

However, other online observers have speculated this particular Su-57 might be a prototype rather than an operational aircraft.

The China International Aviation and Aerospace Exhibition is the only international aerospace trade show approved by the Chinese central government.

It is taking place in Zhuhai between 12 and 17 November.

Russia is understood to have built 32 Felons - a multi-purpose fighter bomber.

It is Russia's fifth-generation supersonic combat jet, with low-observability features and highly advanced intelligence-gathering sensors on the wings.