Cessna 414 · 414A Your Cessna 414 was one of the first turbocharged piston twins to have intercoolers installed at the factory as an integral component of the aircraft's turocharging system. Cessna was ultimately proven right in their concept of incorporating turbo-intercooling into general aviation aircraft. Now all turbocharged piston engine aircraft come from the factory with intercoolers installed as standard equipment. The airframe and engine manufacturers have finally endorsed the importance of intercooling, thanks in large part to innovative engineering centers such as American Aviation. Since your 414 is equipped with an intercooler, we don't have to sell you on the benefits and advantages of turbo-intercooling. Such numbers as 200 knots maximum cruising speed and 900 feet per minute climb at recommended power settings are probably very familiar to you, with proper credit given to the turbo-intercooling system. However, we feel obligated to point out that your aircraft's intercooler was designed well over 25 years ago and by today's standards it is relatively ineffective. That's why we developed an ULTRAcooling System for the 340. What is ULTRAcooling? In short, it's the ultimate application of turbo intercooling technology. By that, we mean ULTRAcooling maintains near constant induction air temperatures at all power setting and flight conditions. For instance, while the standard 414 intercooling system allows induction temperatures to vary between 180°F to 220°F at altitude, ULTRAcooling under those same conditions maintains temperatures between 70°F and 90°F. At medium altitudes ULTRAcooling reduces the induction air temperatures approximately 110°F. To understand what that means to your engines, try to remember the last time you flew an aircraft with carburetor heat. When you pulled the carb heat on, the engine's power diminished. Flying the 414's turbocharged engines with the basic intercooler is like flying with the carb heat on all the time. ULTRAcooling is like carb heat in reverse. Hot induction air is cooled as it's routed through the ULTRAcooling System (like pushing the carb heat off) immediately restoring the engine's lost power. Plus, the cooler induction air is much easier on your engines. American Aviation's ULTRAcooling was specifically designed for the Cessna 414 with the help of the latest computer aided design technology. The system consists of three major assemblies: 1.) A custom designed, high efficiency aluminum alloy heat exchanger that cools the heated compressed induction air using the colder outside air. 2.) High flow induction manifolding, that transfers induction air throughout the system with greater efficiency. 3.) An aerodynamically engineered P-51 style cowling and inlet that maximizes the recovery of ram air velocity from the propeller. ULTRAcooling will allow your 414 to climb and cruise faster than ever before. To cover the same distances you're currently flying, will require less time and money. What Owner/Pilots have to say about the Cessna 414 · 414A and American Aviation's ULTRAcooling Charlie Papa Tango Article The Effects of Charge Air Cooling on Turbocharged Engines Charlie Papa Tango Article ULTRAcooling the Cessna 340 and 414