AIAA TETWoG

The Turbine Engine Testing Working Group (TETWoG) is a focus group of the American Institute of Aeronautics and Astronautics (AIAA) Ground Testing Technical Committee (GTTC). The GTTC scope is “The test evaluation of vehicles, structures, and aerospace systems, subsystems, and components in ground- based facilities such as wind tunnels, environmental facilities, and engine test facilities.”

PURPOSE

TETWoG provides a forum for the informal exchange of knowledge and information to improve mutual understanding between organizations and individuals working in the field of aircraft turbine propulsion system test and evaluation. Organized in 1968, the group’s activities focus on ground-based and simulated flight testing of turbine aircraft propulsion systems for performance and reliability, including prototype, development, qualification, and certification testing.

TETWoG members represent aircraft and propulsion engine manufacturers, test cell design and fabrication companies, aerospace suppliers, and engine test facilities from all over the world. The biannual meetings are an opportunity for members to share testing activities/developments and discuss techniques related to testing, instrumentation, measuring systems, analysis methods, and specific engine/hardware systems related to propulsion system performance and reliability evaluation.

 

CHARTER

Title

Turbine Engine Testing Working Group Charter of the Ground testing Technical Committee, American Institute of Aeronautics and Astronautics

Purpose

The Working Group of Aircraft Turbine Engine Testing is established to provide a forum for the informal exchange of knowledge and information to complement and improve the mutual understanding between organizations and individuals working in the field of aircraft turbine propulsion system test and evaluation.

Scope

Activities of the Working Group shall relate directly to the ground and simulated flight testing of turbine aircraft propulsion systems for both performance and reliability evaluations, and include prototype, development, qualification, and certification. These activities shall be correlated with test criteria and techniques applicable to flight testing requirements. Specifically, the Working Group shall be concerned with testing techniques, instrumentation, measuring systems and techniques, instrumentation, analysis methods and techniques, and specific engine/hardware systems related to the propulsion system performance or reliability evaluation, and which influence the test article performance and reliability.

Membership

Any company, corporation, research or test center, or agency (private or government) involved in test or evaluation of aircraft turbine propulsion systems is eligible to nominate members to participate in the Working Group. Members should possess a detailed familiarity with both the requirement for turbine propulsion system evaluation and the techniques, systems, analysis procedures, methodology, and general concepts for turbine propulsion system performance and reliability testing and evaluation. All members of the Working Group shall be AIAA members.

CHARTER AMENDMENT

Amendment to the Ground Test Technical Committee Charter for the inclusion of Focus Groups

Purpose

Focus Groups are organizations that operate essentially independently from the Ground Test Technical Committee (GTTC), but were organized under and have been sponsored by the GTTC. The primary function of the Focus Groups is the sharing of information on a specific topic within the ground test community. These groups (such as the Space Simulation Working Group and the Turbine Engine Test Working Group) provide an important service to ground testing in their specific areas by allowing the free exchange of ideas, lessons learned and technical knowledge between ground test facility owners/operators, test engineers and customers. Operation The Focus Groups will work independently of the GTTC in most all regards. There is no requirement of shared membership (although this is allowed and encouraged) nor do the Focus Groups have to co-locate meetings with the GTTC (although, this is also allowed). The Focus Groups will have their own charters that define the scope, membership, objectives, operation, etc. The Focus Group charter must be approved by the GTTC. While details as to operation may vary, the Focus Groups generally meet two times per year at a member organizations site (this allows for facility tours) and share information in the form of presentations and/or informal papers. This information is generally kept within the Focus Group membership, but may also be made available to the GTTC membership. Communication between the GTTC and the Focus Groups will be through specific liaisons. The Focus Groups are required to provide an annual written report to the GTTC through the designated liaison. These reports will be included in the GTTC meeting minutes. Representatives from the Focus Groups are welcome to attend the GTTC meetings, however, unless there are issues requiring a TC vote, no presentations will be allowed at these meetings (per current operation of the GTTC). Written reports will include Focus Group officers and membership list, meetings held, the location of the meetings and a summary of events. The Focus Group may be called on to support GTTC activities, such as conference sessions and working groups. If a Focus Group wants to produce a formal deliverable, like a standard, recommended practice or white paper, a formal working group can be established under the GTTC or the work can be completed by the Focus Group. Approval of any deliverable must be granted by the GTTC.

Formation of a new Focus Group is similar to the formation of a GTTC Working Group. After a need for the group is established and a core membership is set, a charter must be drafted and presented to the GTTC for consideration. The GTTC membership will then vote whether or not to sponsor the Focus Group. Sponsorship of each Focus Group will be reviewed by the GTTC every four years, or sooner if the need arises. If the GTTC determines that the Focus Group is not following its charter, or is not providing a positive contribution to the ground test community, the Focus Group may be dropped from the GTTC.

ORGANIZATION

Steering Committee

The TETWoG Focus Group is run by a steering committee. The committee includes three officers, three at-large members, the chair emeritus and at permanent members.

Steering Committee Roles

The chair’s primary duties are keeping the group calendar and host of steering committee meetings. The vice-chair's primary duty is to liaison with the collocated SAE EG-1E & EG-1A groups as well as to step into any other role as needed in the case of absence of another officer. The secretary is tasked with communication, membership, and group minutes. The secretary maintains the TETWoG mailing list, comprising of previous attendees and any other interested person working in the field.

The three at-large members include one designated as lead, one each from North America and one from Europe whose primary duties are regional recruitment of members as well as vetting potential future meeting locations.

The previous chair becomes the chair emeritus. Former chairs are eligible to be named as permanent members of the steering committee. There shall be a minimum of two permanent members.

Steering Committee Selection Process

There are no elections in the group. Steering committee members are promoted every two years or in the case of a vacancy from Lead At-Large through Secretary, Vice-chair, Chair, and Chair Emeritus. The steering committee accepts nominations/recommendations and chooses the new at-large members. The normal selection of a lead at-large is from an existing at-large member.

Steering Committee Membership

As of 2023 the steering committee is comprised of the following members:

2023 TETWoG Steering Committee

Position	Member	Company
Permanent	Bob Yeager	Rolls Royce
Permanent	David Myren	Calspan ASE
Previous Chair	Bob Ciero	Honeywell
Chair	Paul Lizanich	HX5 Sierra
Vice-Chair	Mike Oliver	NASA GRC
Secretary	Olivier Servais	BeCOVER
At-Large Lead	Jonathan Santiago	General Electric
At-Large N Am.	Don Drewry	Atec, Inc.
At-Large Eur.	Diego Ayuso	ITP Aero

Meetings

The group has four types of meetings. The technical meeting is the large scale meeting open to all attendees, registration is required. The officers meet in quarterly steering committee meeting 90 days in advance of technical sessions, as well as meetings the day prior to technical sessions and in the midst of technical sessions as described below.

Technical Meeting

Technical meetings are to be chaired by a session chair. The primary focus of the meeting is attendee presentations. Technical meetings are held twice per year, typically occurring in the third week of October and second week of May, though the actual date may vary due to considerations of the host site. Meetings are co-located with the SAE EG1E and now conform to the SAE preference of having at least one meeting in four outside of US/Canada. The meeting is open to any registered attendee.

Quarterly Steering Committee Meeting

Quarterly meetings are led by the chair. The primary focus of the meeting is to discuss and finalize logistical details of the subsequent technical meeting including meeting registration, agenda, call for presentations. The meeting may also discuss any other business of the TETWoG committee as needed.

The invitees for this meeting include the steering committee plus the upcoming technical meeting's session chair. Steering committee meetings are normally held virtually 90 days in advance of technical meetings.

Steering Committee Pre-Meeting

The pre-meeting is led by the chair. The focus of this meeting is to approve the final agenda, make a final determination of future meeting locations. The invitees for this meeting include the steering committee and current session chair. The pre-meeting is normally held in person Monday night at technical meeting hotel common area in advance of technical sessions, including both TETWoG and the collocated SAE EG-1E.

Steering Committee General Meeting

General meeting is led by the chair. The focus of this meeting is an open discussion on future site nominations. Potential sites can be assigned an steering committee member to make contact an evaluate. This meeting is an open meeting which any TETWoG or SAE EG1E member can attend. The steering committe and the SAE EG1E officers are invited. The general meeting is normally held in person mid-week at the technical meeting hotel common area.

Site Selection Process

Potential sites are nominated to leadership a the steering committee general meeting. The chair will assign an at-large officer to evaluate site. It is expected the nominee will introduce the assigned at-large officer to the site's point of contact.

The assigned at-large officer to prepare report on the site including the openness to hosting the meetings, site availability, calendar restrictions, ability to meet meeting host requirements. Considerations include

• Potential hotel accommodations, government rate availability
• Site security/registration requirements for visitors or foreign nationals
• Site security requirements for visitor computers
• Site tour requirements including safety glasses, steel toe shoes

Site nominee will be typically be drafted to serve as session chair  

MEETING HISTORY

TETWoG Past Meetings

#	Host / Location	Technical Topic	Date(s)	Session Chair	Meeting Host
1	AEDC / Tullahoma, TN	Organizational Meeting	24 Sep 1968	L.T. Barnes	L.F. Webster
2	LTV / Dallas, TX	Thrust Measurement	3 Dec 1968	L.F. Webster	W. E. Simpkin
3	ROHR Corp. / San Diego, CA	Airflow Measurement	7 Mar 1969	L.F. Webster	D.L. Linderman
4	Pratt & Whitney Aircraft / East Hartford, CT	Inlet/Engine Compatibility	17-18 Sep 1969	H. Willcocks	R.E. Gorton
5	Boeing / Seattle, WA	Instrumentation	14-15 May 1970	J.R. Glynn	J.R. Glynn
6	Pratt & Whitney Aircraft / West Palm Beach, FL	In-Flight Thrust Measurement	12-13 Nov 1970	G.J. Zewski	G. J. Zewski
7	General Electric / Evandale, OH	Instrumentation	7-8 Dec 1971	R.E. Gorton	R.M. Reimer
8	Detroit Diesel Allison, GMC / Indianapolis, IN	Installed Performance	11-12 May 1972	J.T. Kutney	W.R. Stiefel
9	Ryan Aeronautical / San Diego, CA	V/STOL Engine Tests	25-26 Jan 1973	J.R. Glynn	B.I. Tyson
10	FAA / Washington, DC	Sound and Emissions	6-7 Jun 1973	A.K. Forney	A.K. Forney
11	Douglas Aircraft / Long Beach, CA	Subscale and Rig Testing	21-22 Mar 1974	J. Flatt	A. B. Hepler
12	NAPTC / Trenton, NJ	Instrumentation	12-13 Sep 1974	R.E. Gorton	B.T. McWilliams
13	NASA - Flight Research Center / Edwards AFB, CA	Engine/Inlet Compatibility	16-17 Jan 1975	W.F. Kimzey	W. Schweikhard
14	Teledyne - CAE / Toledo, OH	Installed Performance	5-6 Jun 1975	J.T. Kutney	W. Dindoffer
15	AirResearch / Phoenix, AZ	V/STOL Engine Tests	6-7 Nov 1975	J.R. Glynn	R. L. Olive
16	McDonnell / St. Louis, MO	Subscale and Rig Testing	13-14 May 1976	J. Flatt	R.E. Martens
17	General Dynamics / Fort Worth, TX	Engine/Inlet Compatibility	4-5 Nov 1976	T.J. Gillard	P. P. Truax
18	NASA Lewis Research Center / Cleveland, OH	Instrumentation	12-13 May 1977	R.E. Gorton	N. C. Wenger
19	Northrop / Hawthorne, CA	Propulsion/Airframe Integration	1-2 Dec 1977	R.H. Smith	J. Stauffer
20	FluiDyne / Minneapolis, MN	Sound and Emissions	22-23 Jun 1978	R.F. Salmon	J.S. Holdhusen
21	Rockwell International NA / El Segundo, CA	Installed Performance	11-12 Jan 1979	J.T. Kutney	W.R. Haagenson
22	AEDC / Tullahoma, TN	Instrumentation	3-4 May 1979	N.C. Wenger	J. R. Parker
23	LTV / Dallas, TX	Engine/Inlet Compatibility	10-11 Jan 1980	W.F. Kimzey	R.G. Kemper
24	AFAPL / WPAFB, Dayton, OH	Subscale and Rig Testing	12-13 Jun 1980	C.E. Porcher	F. R. Ostdiek
25	Pratt & Whitney Aircraft / West Palm Beach, FL	Installed Performance	13-14 Nov 1980	J.T. Kutney	G.J. Zewski
26	FAA - Tech Center / Atlantic City, NJ	Instrumentation	21-22 May 1981	N.C. Wenger	R.F. Salmon
27	Boeing / Seattle, WA	Engine/Inlet Compatibility	19-20 Nov 1981	L.L. Galigher	L. P. Bonifaci
28	General Electric / Lynn, MA	Subscale and Rig Testing	13-14 May 1982	C.E. Porcher	J.T. Kutney
29	Douglas Aircraft / Long Beach, CA	Installed Performance	4-5 Nov 1982	J.T. Kutney	A.B. Hepler
30	NAPC / Trenton, NJ	Instrumentation	5-6 May 1983	N.C. Wenger	D.A. Wysocki
31	NASA Dryden / Edwards AFB, CA	Engine/Inlet Compatibility	3-4 Nov 1983	L.L. Galigher	L. P. Myers
32	Allison Gas Turbines / Indianapolis, IN	Subscale and Rig Testing	10-11 May 1984	C.E. Porcher	W.R. Stiefel
33	Garrett Turbine Engine Co. / Phoenix, AZ	Installed Performance	8-9 Nov 1984	J.T. Kutney	R.L. Olive
34	Pratt & Whitney Aircraft / East Hartford, CT	Instrumentation	9-10 May 1985	N.C. Wenger	T.W. Rafuse
35	General Dynamics / Fort Worth, TX	Engine/Inlet Compatibility	7-8 Nov 1985	L.L. Galigher	C.E. Porcher
36	Teledyne CAE / Toledo, OH	Subscale and Rig Testing	8-9 May 1986	C.E. Porcher	N. Jasas
37	Northrop / Hawthorne, CA	Installed Performance	13-14 Nov 1986	J.T. Kutney	J. Stauffer, J. Crettol
38	Grumman / Long Island, NY	Turboshaft and Propfan Engines	7-8 May 1987	R.L. Johnson	R. Tindell
39	NASA Langley Research Center / Hampton, VA	CFD and Test Integration	12-13 Nov 1987	R. Tindell	R.H. Smith, L.E. Putnam
40	AEDC / Tullahoma, TN	Turbine Engine Test Facilities	5-6 May 1988	L.L. Galigher	J.R. Parker, F.A. Araneo
41	Pratt & Whitney Aircraft / West Palm Beach, FL	Instrumentation	3-4 Nov 1988	N.C. Wenger	R.E. Grubbs
42	FluiDyne / Minneapolis, MN	Subscale and Rig Testing	18-19 May 1989	C.E. Porcher	J.S. Holdhusen
43	AlliedSignal – Garrett Engine Div. / Pheonix, AZ	Installed Performance	2-3 Nov 1989	J.T. Kutney	R.L. Olive
44	NASA Lewis Research Center / Cleveland, OH	Turboshaft and Propfan Engines	10-11 May 1990	P.G. Berndt	N.C. Wenger
45	NASA Dryden / Edward AFB, CA	CFD & Test Integration	1-2 Nov 1990	R. Tindell	L. Myers
46	Wright Laboratory / WPAFB, Dayton, OH	Turbine Engine Test Facilities	2-3 May 1991	J.R. Parker	F.R. Ostdiek
47	Douglas Aircraft / Long Beach, CA	Instrumentation	14-15 Nov 1991	N.C. Wenger	J. McComb
48	Textron Lycoming / Stratford, CT	Subscale and Rig Testing	30 Apr-1 May 1992	J.S. Holdhusen	A.A. Kuklinski
49	NAWC / Trenton, NJ	Installed Performance	5-6 Nov 1992	J.T. Kutney	D. Wysocki
50	AEDC / Tullahoma, TN	Turbo Shaft and Propfan Engines	20-21 May 1993	P.G. Berndt	J.R. Parker, F.A. Parker
51	Pratt & Whitney Aircraft / West Palm Beach, FL	CFD & Test Integration	4-5 Nov 1993	W.G. Hill	R.E. Grubbs
52	General Electric / Cincinnati, OH	Turbine Engine Test Facilities	5-6 May 1994	J.R. Parker	J. Federspiel
53	AlliedSignal / Phoenix, AZ	Instrumentation	3-4 Nov 1994	N.C. Wenger	C. Schults
54	Aero Systems Engineering / Minneapolis, MN	Subscale & Rig Testing	4-5 May 1995	J.S. Holdhusen	D.J. Myren
55	NASA Dryden / Edward AFB, CA	Installed Performance	8-9 Nov 1995	H.M. Moy	K. Ennix
56	Pratt & Whitney Aircraft / East Hartford, CT	Turbo Shaft & Prop Fans	2-3 May 1996	A.A. Kuklinski	H.M. Moy
57	NASA Langley Research Center / Hampton, VA	CFD & Test Integration	7-8 Nov 1996	W.L. Peters	L.D. Leavitt
58	Allison Engine Company / Indianapolis, IN	Turbine Engine Test Facilities	9-10 May 1997	H.J. Counts	L. Nightingale
59	Wright Laboratory / WPAFB, Dayton, OH	Instrumentation	6-7 Nov 1997	D. Unkel	D.C. Rabe
60	NASA Lewis Research Center / Cleveland, OH	Subscale & Rig Testing	7-8 May 1998	D.J. Myren	J.F. Swan
61	Pratt & Whitney Aircraft / West Palm Beach, FL	Installed Performance	5-6 Nov 1998	H.M. Moy	C.L. Peronto
62	NAWCAD / Pax River, MD	Turbo Shaft & Prop Fans	5-6 May 1999	L. Nightingale	A.A. Miguelez
63	Lockheed Martin TAS / Fort Worth, TX	CFD & Test Integration	4 Nov 1999	D.C. Rabe	P.P. Truax
64	AEDC / Tullahoma, TN	Turbine Engine Test Facilities	4-5 May 2000	H.J. Counts	F.G. Araneo
65	USAF / Edward AFB, CA	Instrumentation	2 Nov 2000	D. Unkel	A. Webb
66	Aero Systems Engineering / Minneapolis, MN	Subscale & Rig Testing	3-4 May 2001	D.J. Myren	R.L. Thomalla
67	Pratt & Whitney Aircraft / East Hartford, CT	Turbo Shaft & Prop Fans	23-24 May 2002	L. Nightingale	R. Benoit
68	Honeywell International Engines & Systems / Phoenix, AZ	CFD & Test Integration	7-8 Nov 2002	J. Bergmann	C. Shults
69	General Electric / Cincinnati, OH	Turbine Engine Test Facilities	1-2 May 2003	E. Tucker	M. Johnson, W. Maciag
70	Air Force Research Laboratory / WPAFB, Dayton, OH	Instrumentation	6-7 Nov 2003	D. Unkel	D.C. Rabe, N. Poti
71	National Research Council Canada	Installed Performance	6-7 May 2004	L. Nightingale	J. MacLeod
72	Allied Aerospace / Newport News, VA	Subscale & Rig Testing	9-10 Nov 2004	D.J. Myren	J. Anderson
73	Rolls-Royce Corporation / Indianapolis, IN	Turbo Shaft and Propfan Engines	5-6 May 2005	L. Nightingale	L. Nightingale
74	NAWCAD / Pax River, MD	CFD & Test Integration	3-4 Nov 2005	J. Bergmann	T. Weiss
75	AEDC / Tullahoma, TN	Turbine Engine Test Facilities	4-5 May 2006	F. Araneo	H. Counts
76	USAF / Edwards AFB, CA	Instrumentation	31 Oct-1 Nov 2006	D. Unkel	Al Web/Rocket Lab
77	Aero Systems Engineering / Minneapolis, MN	Subscale & Rig Testing	3-4 May 2007	D.J. Myren	D.J. Myren
78	Pratt & Whitney / West Palm Beach, FL	Installed Performance	15-16 Nov 2007	J. Bergmann	M. O’Neill
79	NASA Glenn Research Center / Cleveland, OH	Turbo Shaft & Prop Fans	8-9 May 2008	B. Yeager	O. Rivera
80	Honeywell / Phoenix, AZ CFD & Test Integration	6-7 Nov 2008	J. Bergmann	J. Davis
81	Rolls-Royce / Derby UK	Turbine Engine Testing	7-8 May 2009	E. Tucker	N. Parfitt
82	Boeing / Seattle, WA	Instrumentation	12-13 Nov 2009	J. Anderson	D. Lutz (SAE)
83	GE / Lynn, MA	Installed Performance	6-7 May 2010	J. MacLeod	D. Hyde
84	TAESL / Dallas, TX Turboshaft/Prop Fans	3-4 Nov 2010	L. Nightingale	J. McKennan
85	United Airlines / San Francisco, CA	CFD & Test Integration	5-6 May 2011	J. Bergmann	Matt Gardella
86	AEDC / Tullahoma, TN	Subscale & Rig Testing	17-18 Nov 2011	Dave Myren	Kirk Rutland
87	Eglin AFB / Fort Walton Beach, FL	Instrumentation	19-20 April 2012	Joel Kelly	Wayne Bell
88	WPAFB / Dayton, OH	Installed Performance	\ Mark Cross	Norm Poti, Doug Rabe
89	Techspace Aero / Liege, Belgium	Turboshaft/Prop Fans	9-10 May 2013	Bob Yeager	Olivier Servais
90	Aerotech / Montreal, Canada	CFD & Test Integration	26-27 Sep 2013	Nathan Payne	Scott Tebbs
91	US Navy / NAS Pax River, MD	Subscale & Rig Testing	8-9 May, 2014	Dave Myren	Tom Weiss
92	Delta Airlines / Atlanta, GA	Instrumentation	6-7 Nov, 2014	Joel Kelly	Dustin Thames
93	GE Aviation / Cincinnati, OH	Installed Performance	7-8 May 2015	Mark Cross	Gary Johnson
94	Industria de Turbo Propulsores / Madrid, Spain	Turboshaft/Prop Fans	5-6 Nov 2015	Bob Yeager	Diego Ayuso
95	Rolls-Royce Corporation / Indianapolis, IN	CFD & Test Integration	12-13 May 2016	N. Payne	Larry Nightingale, Bob Yeager
96	Pratt & Whitney / West Palm Beach, FL	Ambient Testing	3-4 Nov 2016	John Anderson	Marty Shenkle
97	National Research Council (NRC/CNRC) / Ottawa, Ontario, Canada	Instrumentation	11-12 May 2017	Dave Myren	Rastko Hadzic
98	Rolls-Royce / NASA Infinity Science Center, Stennis, MS	Installed Performance	26-27 Oct 2017	Mark Cross	Mike Clarke
99	Safran Aircraft Engines / Villaroche, France	Turboshaft Engine Testing	17-18 May 2017	Olivier Servais	Dave Leunig
100	NASA GRC at Udvar-Hazy Center / Washington, DC	The History of Testing	15-16 Nov 2018	Mike Oliver	Mike Oliver
101	GE Infrastructure Querétaro / Querétaro, Mexico	Computational Fluid Dynamics	16-17 May 2019	Jonathan Santiago	Jonathan Santiago
102	Dallas Airmotive / Dallas, TX	Ambient Testing	17-18 Oct 2019	John Anderson	Ian Cheyne
103	Notre Dame Turbomachinery Lab /Cancelled due to COVID-19	Instrumentation	CANCELLED	Bob Yeager	Joshua Cameron
104	MDS AERO / virtual due to COVID-19	Installed Performance	Oct 2020	Doug Marsh	Doug Marsh
105	Cancelled due to COVID-19	Turboshaft Engine Testing	CANCELLED
106	Notre Dame Turbomachinery Lab / South Bend, IN	Computation Fluid Dynamics	7-8 Oct 2021	Bob Yeager	Joshua Cameron
107	Atec Inc. / Midwest City, OK		12-13 May 2022	Don Drewry	Don Drewry
108	AneComAeroTest GmbH / Wildau, Germany		6-7 Oct 2022	Doug Marsh	Doug Marsh
109	Calspan Aero Systems Engineering / St. Paul, MN		17-18 May 2023	David Myren	David Myren
110	NASA GRC / Cleveland, OH		15-16 Nov 2023	Mike Oliver	Richard Bozak
111	ITP Aero / Spain		May 2023	Diego Ayuso	Diego Ayuso

References

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