Rolls-Royce and PZL-Swidnik Aircraft signed a memorandum of understanding to discuss future applications of the RR500 engine family, which was launched last month at Heli Expo in Anaheim, CA. Rolls-Royce and PZL-Swidnik will work together to determine how the new RR500 engine family can be applied to the company's existing and future helicopter models. PZL-Swidnik currently produces the SW-4 light, single-engine, multipurpose helicopter. The RR500 core is a scaled version of the RR300, which was launched in 2007 to power the Robinson R66. The RR300 was certified in late 2007 and is now in production. FAA type certification for the RR500 is expected in late 2011, with production engines to follow.