Scott C. Donnelly
Chairman, President and Chief Executive Officer at Textron
Thanks, Eric, and good morning, everyone. We had a strong second quarter with higher revenues across all of our manufacturing segments, operating margins of 9.1% and strong cash generation. The Bell revenues were up in the quarter on higher commercial revenues, partially offset by lower military revenues. On the commercial side of Bell, we delivered 47 helicopters, up from 27 in last year's second quarter. We continue to see strong commercial demand and solid order activity in the quarter across all our commercial models, both domestically and internationally and across multiple end markets, including corporate, private, utility and EMS. Moving to future vertical lift in June following 214 flight hours over three years, Bell retired the V-280 Valor demonstrator aircraft. Over this three year period, the Valor successfully demonstrated all key performance parameters with FLRAA program, including low-speed agility, long-range crews, 305 knot high-speed flights, autonomous flight and rapid Mission Systems integration.
On July 6, the Army issued the FLRAA RFP. The program remains on track to the Army schedule with bids due in September, followed by down-selected award in the second quarter of 2022. On FLRAA, Bell is about 45% of the way through its build of the 360 Invictus prototype. And lastly, Bell announced plans for new systems integration lab in Arlington to provide integration, verification and validation testing on aircraft emission systems needed to meet the requirements for both [Indecipherable] programs. Moving to Textron Systems. We saw another strong quarter of execution with operating margins of 14.4%, up 310 basis points from last quarter. We saw a strong performance at ATAC driven by increased flight activity, led by our F1 fleet on the U.S. Air Force cash program, where we have made significant investments over the last few years. In June, Sea Systems delivered the third Ship-to-Shore Connector, LCAC 102 to the U.S. Navy. As development contract portion of this program continues to wind down through the remainder of 2021, we expect to see revenue growth and margin expansion on the program as we increase our activity on the production time frame. Also in the quarter, Land Systems delivered the fourth and final Ripsaw M5 vehicle to the U.S. Army for RCV medium program.
The customer will be geting integration and testing of these vehicle in preparation for the 2022 soldier operational experiment. Land Systems also unveiled the Cottonmouth, vehicle purpose built for the U.S. Marine Corps Advanced Reconnaissance Vehicle program and was recently selected for further prototype development under an anticipated OTA contract award. Offsetting higher revenues in most of its operating units in the quarter, we did experience some top line pressure at Air Systems largely related to the reduction in hours of our fee-for-service activities due to the U.S. Army's Afghanistan withdrawal and impact of the sale of the TRU Simulation business earlier this year. At Aviation, revenues were up in the quarter on higher volumes for Citation jets and commercial turboprops as well as in our aftermarket business. We delivered 44 jets, up from 23 last year and 33 commercial turboprops, up from 15 in last year's second quarter. We continue to see strong commercial demand and order activity for our aircraft, which resulted in backlog growth of $689 million to $2.7 billion at quarter end.
Through the first half of the year, we recorded over $1.1 billion of backlog growth in Aviation. Both the Citation Longitude and Citation CJ4 Gen2 received the ASO type certification in the quarter. The certification is expected to generate additional demand opportunities for each of these models. On the new product front, Cessna SkyCourier aircraft certification program has now accumulated over 1,200 flight hours and continues to progress well as we work towards entering the service targeted for later this year. Moving to Industrial. Revenues and margins were up at both Kautex and Specialized Vehicles from last year's second quarter, primarily due to higher volume and mix at each of the businesses. At Kautex, despite the higher revenues, we've experienced order disruptions related to the global auto OEM supply chain shortages, which have directly impacted our production scheduling, resulting in intermittent line shutdowns and manufacturing efficiencies. At Specialized Vehicles, we saw higher revenues and improved operating performance from a strong retail pricing environment driven by continued high customer demand in our end markets.
While we've experienced continued strong retail demand for our products, we have been impacted by our supply chain's ability to fully meet this demand, and we continue to work through these production challenges. In summary, we continue to see increased commercial order flow at Aviation and Bell, solid execution in our military businesses, strong retail demand for our products, the Industrial segment and improved cash generation that all contributed to the second quarter performance and our improved EPS and cash outlook.
With that, I'll turn the call over to Frank.