They are made up of three flapperons on the outboard side of the wing, and one on the inboard side. We are also getting our first look at the B-21's flight control surfaces.The B-2 had a single door that opened forward, creating something of an air brake, as well as a side door further back that remained closed after extension and retraction. It is divided into two doors, both opening up to the right side of the aircraft. The Raider's nose gear door is perhaps the most interesting.The larger and heavier B-2 relied on a double truck arrangement. Here we see six-sided doors that cover the jet's single truck main landing gear. Gone are the big trapezoidal main gear doors of the B-2. The B-21's gear doors are also of interest.Although if that is the case, it is quite far forward and high up on the central fuselage for such an application. We see a dark area beyond the nacelles, on the side of the aircraft's central fuselage 'hump.' It isn't clear what this is, but thermal protection for the B-21's still very secretive exhaust system could be what we are seeing here.We also get a good view of just how blended the B-21's engine intakes and nacelle areas truly are, showing just a slight bulge in this image.Considering the B-21 is likely to have a high ceiling, most radar-toting adversary aircraft shouldn't be operating above it. This is a good reminder of just how the Raider will conceal its engine inlets from adversary radars, especially those emitting from any aspect below the aircraft. They are just cresting the aircraft's leading edge from the perspective of the camera. Just how deeply 'buried' the Raider's inlets - one of the most exotic and challenging low-observable features of the design - truly are.We also see the aerial refueling markings peeking out from atop the aircraft's bulged spine. The cockpit is either very small or very tall. They also speak to the challenge that is judging the proportions on the alien-like B-21. They sit far back and are another indicator of just how limited the pilots' visibility will likely be in this aircraft.
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