AEDC Hypersonic Tests to Benefit from Improvements to Emissivity Measurement Accuracy
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PRSRT STD US POSTAGE PAID TULLAHOMA TN Vol. 67, No. 24 Arnold AFB, Tenn. PERMIT NO. 29 December 21, 2020 AEDC Base Civil Engineering Branch vital to mission success at Arnold AFB By Jill Pickett ety of capabilities and servic- AEDC Public Affairs es that directly support every person, every organization From mowing grass to op- and every test capability on erating test utility systems, Arnold AFB,” said John Lavi- the Arnold Engineering De- olette, TSDC chief. “Many velopment Complex Civil En- of these services are founda- gineering Branch, or TSDC, tional to successfully accom- ensures the readiness of the plishing the installation’s test grounds, facilities and utility mission.” systems at Arnold Air Force A team of DOD and con- Base, headquarters of AEDC. tractor personnel work to- “The Test Support Di- gether to sustain, restore and Garry Sudberry, an Arnold Engineering Development Complex fuel farm machinist, sets up vision’s Civil Engineering the A Plant Fuel System, Sept. 10, at Arnold Air Force Base. The AEDC Base Civil Engineering Branch oversees utilities at Arnold AFB, including jet fuel for testing needs. (U.S. Air Force Branch provides a wide vari- See SUCCESS, page 4 photo by Jill Pickett) AEDC hypersonic tests to benefit from improvements to emissivity measurement accuracy By Jill Pickett but there are limitations on the AEDC Public Affairs number and locations these can be placed. Infrared cameras al- As hypersonic vehicle de- low for continuous measure- velopment heats up, the Ar- ment of the surface tempera- nold Engineering Development tures of a model under test, but Complex Aerothermal Measure- the infrared camera measure- ments Laboratory (ATML) is ments must be verified first. preparing to help test engineers That’s where the emissometer know just how hot it is getting. comes into the picture. When a vehicle travels at “The emissivity of the sur- high rates of speed, friction of face of a material relates to its the air against the vehicle gen- effectiveness in emitting energy erates heat that can threaten as thermal radiation, both vis- the integrity of the vehicle’s ible radiation and infrared radia- surface. Aerothermal tests in tion,” said Dr. Robert Howard, AEDC ground test cells, or AEDC subject matter expert wind tunnels, analyze this effect for Instrumentation and Diag- on transonic, supersonic and hy- nostics. “The emissivity var- personic flight systems. ies from zero, for a shiny mir- “Most high-speed flight ve- Annette Painter, AEDC Fellow and instrument technician specialist, operates the legacy emis- rored surface, to one for an ideal hicle programs have required someter in the calibration laboratory of the Arnold Engineering Development Complex Aero- black surface. For any particular aerothermal capabilities pro- thermal Measurements Laboratory at Arnold Air Force Base. An acetylene torch is positioned to wavelength and temperature, vided by the AEDC test facili- heat a sample before measuring the emissivity when bombarded by a blackbody simulator. The the amount of thermal radiation ties and the technical services of enhanced emissometer being developed for the ATML will include a built-in heat source and al- emitted depends on the emis- low for measurements at additional angles. (U.S. Air Force photo) the ATML,” said Nick Galyen, sivity of the object’s surface. AEDC program manager for the flight systems and vehicles dur- pulsion Test Unit,” he said. with a new spectral emissometer Thus, the surface temperature ATML. ing test and evaluation, science In order to improve measure- with enhanced capabilities to re- can be deduced from a measure “Surface temperature and and technology applications in ment accuracy, a Small Busi- place an older legacy system. of the radiation at a particular heat flux are necessary to un- AEDC Tunnels A, B, C, 16T ness Innovation Research effort The ATML fabricates and in- spectral region and knowledge derstand boundary layer transi- (transonic), 16S (supersonic) by Advanced Fuel Research is stalls temperature and heat flux tion, especially for hypersonic and the Aerodynamic and Pro- underway to provide the ATML sensors in flight system models, See HYPERSONIC, page 3 Former USAF crew chief puts knowledge to use as test engineer at AEDC engine test facilities By Deidre Moon changed out almost every part AEDC Public Affairs possible while the engine is still installed on the aircraft. From Bryon Harrington, a test en- my experience, I am quite fa- gineer for the Propulsion Test miliar with the integration of Branch at Arnold Air Force the engine into the aircraft and Base, Tenn., served previously the current engine configuration as a crew chief in the U.S. Air used.” Force from 2007 to 2017. After separating from the While serving in the Air Air Force in 2017, he headed Force, Harrington worked to Tennessee Technological hands-on with several of the air- University where he earned a craft and the engines that AEDC bachelor’s degree in mechanical teams test and evaluate. engineering. During his studies, “I worked the F-15 Eagle, he started interning at Arnold, F-22 Raptor and MQ-1B Preda- which later landed him a full- tor aircraft over my career and time position with Arnold Engi- reached the rank of Tech Ser- neering Development Complex geant,” he said. “I became En- in June 2020. gine Run-qualified on the F-22 Using all he learned from his Bryon Harrington, then an Airman 1st Class, is shown here in January 2009 reviewing aircraft data in 2010 as a Senior Airman, and time spent as crew chief, along as F-22 Raptors deployed from Elmendorf Air Force Base, Alaska, arrive at Andersen Air Force my last engine run was in 2016. with the help of the experienced Base, Guam. Harrington now works as a test engineer for the Arnold Engineering Development “I have troubleshot the F119 Complex Propulsion Test Branch at Arnold Air Force Base. (U.S. Air Force photo by Master Sgt. Kevin J. Gruenwald) engine for numerous faults and See CHIEF, page 3 ‘Tis the season...for scams Former USAF crew chief puts AEDC team member spends and malicious campaigns knowledge to use as test engineer free time tending to tiny at AEDC engine test facilities farm animals …Page 2 …Page 3 …Page 10 2 • December 21, 2020 Arnold Air Force ‘Tis the season...for scams and Base malicious campaigns By Air Force Office of Special and prevent any further finan- to pay money. phone, email, postal mail, text Investigations, Det. 106 cial, data loss or potential iden- or social media. Protect your tity theft fraud: • Asking you to pay money money and your identity by not As this holiday season ap- or taxes upfront to receive a sharing personal information • File a complaint with prize or a gift. Col. Jeffrey Geraghty proaches, the Office of Special the FBI’s Internet Crime like your bank account number, Investigations (OSI) Detach- Social Security number or date Commander Complaint Center (IC3) • Asking you to wire them ment 106 would like to re- of birth. This includes your Federal Bureau of money, sending money by Jason Austin mind everyone to be aware of government affiliated equiva- Chief, Investigation Internet Crime courier, or putting money on potential scams and malicious lents, like GPC number, expira- Public Affairs Complaint Center: https:// a prepaid card or gift card campaigns, particularly when tion dates, etc. www.ic3.gov/default.aspx. and sending it to them. browsing or shopping online. If you believe you have been Fraud is obtaining something of • File a complaint with • Asking for access to your the target of any scam, report Richard Tighe value through willful misrepre- the Tennessee Bureau of money – such as your the incident to OSI Detachment General Manager, sentation. Bad actors may send Investigation Cyber Crime ATM cards, bank accounts, 106. Our contact information is National Aerospace emails, e-cards or text messag- Division: https://www. credit cards or investment below. Solutions es containing malicious links tn.gov/tbi/crime-issues/ accounts. OSI Detachment 106 Con- High Mach Staff: or attachments infected with crime-issues/cybercrime. tact Options: Duty Hours Phone: 931- Kathy Jacobsen, malware, or may send spoofed html. • Paying a larger than normal NAS Executive Editor emails requesting support for amount due to COVID-19. 454-7820 fraudulent charities, causes or • Report the attack to the Detachment Email: AFO- Remember these tips also Jill Pickett pandemics. This can happen at police and file a report [email protected] apply while you are working on NAS Editor home or at work. with the Federal Trade Arnold Air Force Base. You are High Mach is published by In 2019, a holiday-themed Commission. Text: Text “AFOSI” + Your not protected from scams while Lakeway Publishers, Inc. a pri- phishing campaign delivering Tip Info to “Crimes” (274637) at work. 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