Sierra Industries late last month said an airframe incorporating its newest set of modifications to the venerable Cessna Citation 501 models made its first flight on June 14. The new modification, dubbed the "Stallion" by Sierra, features uprated Williams FJ44-2A engines offering greater speed and higher climb rates, among other benefits. The Stallion offering fits between the stock airframe and the Sierra Eagle II set of modifications in the company's product line. In addition to uprated engines, the Eagle II mods include a longer wing and greater fuel capacity. Company CEO Mark Huffstutler piloted the Sierra Stallion's first flight, noting, The tradeoff between the higher performance of the Stallion against the longer range of the Eagle II is the perfect sweet spot for many of [our] customers.
This is a companion discussion topic for the original entry at https://www.avweb.com/news/upgraded-citation-501-makes-first-flight