b1b bomber 3D 模型

from wikipedia...
the b1 lancer is a four-engine, variable-sweep wing strategic bomber used by the united states air force. first envisioned in the 1960s as a supersonic bomber with sufficient range and payload to replace the boeing b-52 stratofortress, it developed primarily into a low-level penetrator with long range and supersonic speed capability.
the b1b entered service with the united states air force (usaf) in 1986.

the bomber is commonly called the \"bone\" (originally from \"b-one\"). with the retirement of the ef-111a raven in 1998 and the f-14 tomcat in 2006, the b-1b is the u.s. military's only active variable-sweep wing aircraft.

the b-1 has a blended wing body configuration, with variable-sweep wing, four turbofan engines, and triangular fin control surfaces. forward-swept wing settings are used for takeoff, landings and high-altitude maximum cruise. aft-swept wing settings are used in high subsonic and supersonic flight. the b-1's variable-sweep wings and thrust-to-weight ratio provide it with better takeoff performance, allowing it to use more runways than previous bombers. the length of the aircraft presented a flexing problem due to air turbulence at low altitude. to alleviate this, the manufacturer included small triangular fin control surfaces or canards near the nose on the b-1.

its maximum speed is mach 1.25 (about 950 mph or 1,530 km/h at altitude), but its low-level speed increased to mach 0.92 (700 mph, 1,130 km/h). technically, the current version of the aircraft can exceed its speed restriction, but not without risking potential damage to its structure and air intakes. to help lower its radar cross section (rcs), the b-1b uses serpentine air intake ducts and fixed intake ramps, which limit its speed compared to the b-1a. vanes in the intake ducts serve to deflect and shield radar emissions from the highly reflective engine fan blades.

product features:
-includes \"group\" information, which your software should interpret as separate parts and allow you to move the wings, wing flaps, rudder, landing gear, and ailerons.
-includes basic ****pit interior, which can be seen though the windows.
-low-polygon pilot and co-pilot models are included so you don't have to add any human figures to the scene.
-fully textured with texture maps, specular maps, and bump/ normal maps:
--texture maps: 1024x512
--specular maps: 1024x512
--bump/ normal maps: 1024x512 打印准备: 否