Aerodynamics

November 4, 2013 - 2:40am

Two faculty members from Penn State’s vertical-lift research center of excellence were honored recently at the fourth annual International Basic Research Conference on Rotorcraft Technology in Tianjin, China. Professor Edward Smith and research associate Jianhua Zhang were honored for their paper, “Influence of Aeroelasticity Tailored Wing Extensions and Winglets on Whirl Flutter Stability.” The research was underwritten by the National Rotorcraft Technology Center and the NASA Ames Research Center.

November 2, 2013 - 1:12am

Among the operational topics for the technical committee at the triennial ICAO Assembly were significant safety issues. One paper from the Russian delegation provided a description of extensive studies of wake vortices, and the development of a wake vortex safety system that would use outputs from ADS-B, Swim and two Aviation System Block Upgrades 1 elements, with pilot alerts transmitted over the anticipated datalinks in that period–that is, by 2018.

November 2, 2013 - 12:25am
Redbird’s RedHawk

For many pilots, the first exposure to the benefits of an angle-of-attack (AOA) indicating system comes during their first simulator session toward a business jet or airliner type rating. Because fewer pilots are entering the world of professional flying via the military–which actively uses AOA systems–and general aviation training airplanes are rarely AOA equipped, new civilian pilots get little exposure to AOA indicators and their safety benefits.

October 28, 2013 - 1:30pm

Aviation Performance Solutions (APS) released version one of its new iPad app based on the original airplane upset and recovery training aid. The app is designed to make studying the issues surrounding loss of control in flight as convenient as possible. The app includes eight separate modules covering the basics of upset prevention and recovery training, aerodynamics, causes of upsets and recovery techniques.

October 22, 2013 - 7:45pm

Aviation Partners (Booth No. C8114), in cooperation with Boeing, is launching its new Split Scimitar Winglet program for Boing BBJs. Split Scimitar Winglets are already available for 737 NGs.

The Split Scimitar Winglet modifies the existing blended winglet on the BBJ by adding a Scimitar-tipped ventral strake, reinforced internal winglet structure and replacement of the aluminum winglet tip caps with more aerodynamically shaped Scimitar tip caps.

October 22, 2013 - 7:00pm

Tamarack Aerospace and Cessna Aircraft signed an agreement this week at NBAA 2013 under which Cessna will market, sell and install Tamarack’s active winglets for the CitationJet family through the CJ3. The winglets provide more range, increased useful loads and improved high-and-hot performance, while simultaneously improving fuel economy.

October 22, 2013 - 6:30pm
Winglet Technology’s Elliptical Winglet upgrade  will increase the Citation Sovereign’s wingspan by five feet to 69 feet 4 inches.

Winglet Technology of Wichita, Kan. (Booth No. C12043), the company that supplies its Elliptical Winglets for the Citation X, is collaborating with the Cessna service center network to offer the winglets for retrofit on the Citation Sovereign. Flight testing is expected to begin this month and the companies are targeting entry-into-service in the first quarter of 2015.

October 22, 2013 - 3:25pm
BLR Aerospace expects STC approval soon for its King Air 90 Ultimate Performance Package.

BLR Aerospace (Booth No. C7034), announced here at NBAA that it expects supplemental type certificate (STC) approval soon for a King Air 90 Ultimate Performance Package, which will allow operators to realize the full potential benefits that BLR’s winglets can offer in operating efficiency. Approval was delayed by the U.S. government shutdown and furlough of non-essential FAA employees.

October 22, 2013 - 6:15am
Big Ass Fans has found a niche in the aviation market, where its fans are used to circulate and cool air in hangars. Some of the models can be equipped with security cameras, fire-suppression equipment and LED lights. The company’s booth at the show is being cooled by an 18-foot ceiling fan.

The firm started in 1999 as the HVLS Fan Co., an acronym for high-volume low-speed fans. That name accurately described the design and efficiency of the company’s products, but after three years in business, according to the Lexington, Ky.-based manufacturer, “we finally had to bow to the sentiments of our customers and concede that we do, in fact, design and manufacture some Big Ass Fans.” Hence, the current brand name.

October 22, 2013 - 4:00am
Shown in flight above Edwards AFB, with the test side visible, is Aerion’s phase-two test article mounted under a NASA F-15B.

Reno, Nev.-based Aerion is releasing results from recent flight tests of a natural laminar flow (NLF) wing test article this week here in Las Vegas, while the company continues to work to have its supersonic business jet enter service in 2020. The goal of these tests was to measure “real-world robustness” of supersonic NLF, which is a key technology for the Aerion SSBJ, in regards to surface quality and manufacturing tolerances.

 
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