ROK air force is trying to make a tough decision between Boeing's F-15 SE, Lockheed's F-35A, and EADS Eurofighter. For the next 10 years, 8 billion dollars will be invested in the fighter experimental (F-X) business, and on the 14th, after evaluating the project proposals, all three models passed the first test. This week full-fledged negotiations and test evaluations are scheduled for the three models. I wonder which one will win the final deal. F-15SE (a proposed upgrade of the F-15E using stealth features) Manufacturer : U.S. Boeing Length : 19.45m, Height : 5.64m, Wingspan : 13.05m Compared to other models, the F-15SE is larger, faster, and has a wider combat radius. Pros : F-15SE is very stable, uses twin engines, which gives enhanced mobility and a larger combat radius. Cons : As an upgrade of F-15, is old-fashioned. Although the stealth features were added, there are limits to the stealth because the base model was not a stealth aircraft. F-35A Manufacturer : U.S. Lockheed Martin Aeronautics Length : 15.37m, Height : 5.28m, Wingspan : 10.65m Cons : Has a small combat radius, uses single-engine, making it less mobile. The price is expensive, and is under development, so has never been deployed in actual combat. Eurofighter Typhoon Manufacturer : The European Aeronautic Defence and Space Company(EADS) Length : 15.96m, Height : 5.28m, Wingspan : 10.95m Pros : Is considered to be suitable for the Korean circumstances, and the performance was verified during the actual deployment at the Libyan crisis. ※ EADS offered the joint production of its Eurofighter Typhoon, which will allow South korea to become the world's fifth nation with the capacity to produce the two-engine, multi-role combat aircraft if the ROK selects EADS as the winning bidder. According to plan, 60 aircraft are to be deployed starting year 2016 by the end of 2021, which will enhance the ROK air force's military strength in preparing against North Korea's threats, and assure the stability and peace of the Korean peninsula.