Presenting the Bombardier CRJ-700 in the colours of the Blind Landing Experimental Unit of the Royal Aircraft Establishment. The Blind Landing Experimental Unit (or BLEU) was formed in 1945 and was established in order to find solutions to the need for guidence systems for aircraft landing in poor weather. The need had existed since the beginning of powered flight, but had only grown more urgent during the Second World War. Building upon the existing radio and radar technologies of the era, they sought to develop a fully automated landing system which they would achieve in the 1950s with a Vickers Varsity aircraft, the technology being eventually approved for commercial use in 1964.

This paint scheme is based on the BAC One-Eleven, registration XX105, acquired by the RAE in 1971 to replace two deHavilland Comets as a new test bed. Among some of the technologies tested on XX105 were early Fly by Wire systems, Direct Lift Control, Relaxed Static Stability, Energy-based Control Laws and Steep/Two Segment Approach techniques for noise reduction. It would continue to serve as a stalwart for the RAE at the cutting edge of avionics research for over 30 years, finally being retired in 2003.