File Description: Flight Simulator X version of the Bristol Fighter Mk.1 or 'Biff' as it was called by it's crews in WW1. This file is part 4 of a 4 part download and contains visual models and textures depicting 4-blade propeller versions, D8084 of No 139 Sqdn RAF and B1112 of No.22 Sqdn RFC/RAF. This file requires the prior successful installation of part 1 (F2BX1Pt1.zip), which contains common textures. Parts 2 & 3 are optional. This aircraft was modeled using 3DS Max 8.0 and compiled using FSX SDK tools and will only work in FSX or higher. It is NOT compatible with FS2004. The aircraft makes full use of FSX materials and also features skinned animated crew members in the external model. It also features a detailed virtual cockpit. All instruments, levers and selectors are modeled in the 3D model. It does not use the FSX gauge system and there is NO 2D cockpit.