Hi Everyone. Today We Have The SR-72 Darkstar That Having A Cockpit And An Automatic Scramjet Engine!!! But Before That We Have 3 Different Engine. Take Off, Landing, And Approaching Engine Are Activated And Can Be Controlled By Throttle At Below 20,000 ft. Next We Have A Ramjet Engine, This Engine Willl Automatically Active At Above 20,000 ft And Below 90,000 ft, But In This Stage The Engine Cannot Be Controlled By Throttle, But This Engine Will Automatically Shut Down When Reach Altitude Below 20,000 ft. Next We Having The Legend, The Fastest, Is The Scramjet Engine, This Engine Will Automatically Activated At Speed Mach 2.5 (1667 Knot) (3087 Kmph) (1918,2 Mph) And Altitude Above 50,000 ft. If You Can't Activate The Scramjet, I Will Tell You How To Activate The Engine. First You Must Reach Above 90,000 ft And Dive With -25 To -30 Degrees Until You Notice The Speed Is Increasing Very Rapidly, After You Notice The Speed Increase You Must Pull Up And Don't Going To Below 50,000 ft. If You Want To Decrease Your Speed Or Landing, You Must Decend Below 20,000 ft And Your Speed Will Be More Controllable. Thats It Thank You For Downloading:) | Caution Using Scramjet Engine Below 50,000 ft Will Make Your Plane Shake And Maybe Explode. If You Wanna Request Or Wanna Report Something Strange To Our Plane, Feel Free To Comment. Bye:)