Open Access. Powered by Scholars. Published by Universities.®
History of Science, Technology, and Medicine Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Institution
-
- University of Nebraska - Lincoln (3398)
- Embry-Riddle Aeronautical University (3)
- Purdue University (3)
- City University of New York (CUNY) (2)
- University of Dayton (2)
-
- University of Nevada, Las Vegas (2)
- Air Force Institute of Technology (1)
- Claremont Colleges (1)
- East Tennessee State University (1)
- Gettysburg College (1)
- Mississippi State University (1)
- Old Dominion University (1)
- SUNY Buffalo State University (1)
- San Jose State University (1)
- Swarthmore College (1)
- University of New Mexico (1)
- University of Rhode Island (1)
- University of Southern Maine (1)
- West Virginia University (1)
- Wofford College (1)
- Keyword
-
- 1957 (29)
- International Harvester Company (13)
- Propane (5)
- Allis-Chalmers Manufacturing Company (3)
- Aviation history (2)
-
- Ford Motor Company (2)
- International Harvester (2)
- J. I. Case Company (2)
- STEM (2)
- Technology (2)
- "Cold War" (1)
- "North Pole" (1)
- "USS Nautilus" (1)
- "United States Navy" (1)
- "W.R. Anderson" (1)
- "William Robert Anderson" (1)
- "nuclear submarine" (1)
- "polar ice cap" (1)
- 1206 (1)
- 1958 (1)
- 9N (1)
- AT&T (1)
- Aerodynamics (1)
- Aerospace history (1)
- Agency (1)
- Ai (1)
- Air power history (1)
- Airship (1)
- Allis-Chalmers D-14 Gasoline (1)
- Allis-Chalmers D-17 Diesel (1)
- Publication Year
- Publication
-
- Nebraska Tractor Tests (3397)
- Dissertations, Theses, and Capstone Projects (2)
- Electrical and Computer Engineering Faculty Publications (2)
- Faculty Publications (2)
- Publications (2)
-
- Artificial Intelligence Exhibit (1)
- Broadus R. Littlejohn, Jr. Manuscript and Ephemera Collection (1)
- College of Sciences Graduate Student Research (1)
- ERAU Prescott Aviation History Program (1)
- Electronic Theses and Dissertations (1)
- Engineering Management & Systems Engineering Faculty Publications (1)
- Executive Vice President & Provost Faculty Research (1)
- Honors Program: Senior Projects (Public) (1)
- Honors Theses (1)
- Industrial Technology Theses (1)
- Journal of Media Literacy Education (1)
- Libraries Faculty and Staff Scholarship and Research (1)
- Posters and Presentations (1)
- Purdue University Press Books (1)
- Search the General Manuscript Collection Finding Aids (1)
- Student Publications (1)
- Swarthmore Undergraduate History Journal (1)
- The Journal of Purdue Undergraduate Research (1)
- The Transdisciplinary STEAM+ Journal (1)
- Publication Type
- File Type
Articles 2011 - 2040 of 3424
Full-Text Articles in History of Science, Technology, and Medicine
Test 1376: International 884 Rowcrop Diesel 16-Speed, Nebraska Tractor Test Lab
Test 1376: International 884 Rowcrop Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1355: Steiger Panther Iii Pta-325 And Panther Iv Cs-325 Diesel 10-Speed, Nebraska Tractor Test Lab
Test 1355: Steiger Panther Iii Pta-325 And Panther Iv Cs-325 Diesel 10-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE
General
Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure.
The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1356: Versatile 835 Diesel 12-Speed, Nebraska Tractor Test Lab
Test 1356: Versatile 835 Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1357: John Deere 4440 Power Shift Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1357: John Deere 4440 Power Shift Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Brochure: John Deere Waterloo Works, Nebraska Tractor Test Lab
Brochure: John Deere Waterloo Works, Nebraska Tractor Test Lab
Nebraska Tractor Tests
No abstract provided.
Test 1359: John Deere 4040 Syncro Range Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1359: John Deere 4040 Syncro Range Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1364: Massey-Ferguson Mf205-4 Diesel 6-Speed, Nebraska Tractor Test Lab
Test 1364: Massey-Ferguson Mf205-4 Diesel 6-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1367: Massey-Ferguson Mf220 Diesel 12-Speed, Nebraska Tractor Test Lab
Test 1367: Massey-Ferguson Mf220 Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1370: Kubota L295 Dt Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1370: Kubota L295 Dt Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1371: Kubota L305 Dt Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1371: Kubota L305 Dt Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1372: Kubota L345 Dt Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1372: Kubota L345 Dt Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1373: White Iseki 2-30 Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1373: White Iseki 2-30 Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1334: Belarus 7100 Diesel (K-701) 16-Speed, Nebraska Tractor Test Lab
Test 1334: Belarus 7100 Diesel (K-701) 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1333: Belarus 1500 Diesel (T-150k) 12-Speed, Nebraska Tractor Test Lab
Test 1333: Belarus 1500 Diesel (T-150k) 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1332: Versatile 875 Diesel 12-Speed, Nebraska Tractor Test Lab
Test 1332: Versatile 875 Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1331: Versatile 555 Diesel 15-Speed, Nebraska Tractor Test Lab
Test 1331: Versatile 555 Diesel 15-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1330: Case 4890 Diesel, Also Case 4894 Powershift Diesel, And Case International 4894 Powershift Diesel (12-Speed), Nebraska Tractor Test Lab
Test 1330: Case 4890 Diesel, Also Case 4894 Powershift Diesel, And Case International 4894 Powershift Diesel (12-Speed), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1329: Case 4690 Diesel, Also Case 4694 Powershift Diesel, And Case International 4694 Powershift Diesel (12-Speed), Nebraska Tractor Test Lab
Test 1329: Case 4690 Diesel, Also Case 4694 Powershift Diesel, And Case International 4694 Powershift Diesel (12-Speed), Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1328: Case 4490 Diesel 12-Speed, Nebraska Tractor Test Lab
Test 1328: Case 4490 Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1327: John Deere 1050 Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1327: John Deere 1050 Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1326: Ford 1900 Diesel 12-Speed, Nebraska Tractor Test Lab
Test 1326: Ford 1900 Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1325: Ford 1700 Diesel 12-Speed, Nebraska Tractor Test Lab
Test 1325: Ford 1700 Diesel 12-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1324: John Deere 8640 Diesel 16-Speed, Nebraska Tractor Test Lab
Test 1324: John Deere 8640 Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1323: John Deere 8440 Diesel 16-Speed, Nebraska Tractor Test Lab
Test 1323: John Deere 8440 Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1321: Massey-Ferguson 2675 Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1321: Massey-Ferguson 2675 Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1322: Massey-Ferguson 2705 Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1322: Massey-Ferguson 2705 Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1320: International 3588 And 6588 Diesel 16-Speed, Nebraska Tractor Test Lab
Test 1320: International 3588 And 6588 Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1319: International 3388 And 6388 Diesel 16-Speed, Nebraska Tractor Test Lab
Test 1319: International 3388 And 6388 Diesel 16-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1318: White 4-210 Field Boss Diesel 18-Speed, Nebraska Tractor Test Lab
Test 1318: White 4-210 Field Boss Diesel 18-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …
Test 1315: International 784 Row Crop Diesel 8-Speed, Nebraska Tractor Test Lab
Test 1315: International 784 Row Crop Diesel 8-Speed, Nebraska Tractor Test Lab
Nebraska Tractor Tests
EXPLANATION OF THE TEST PROCEDURE General Tractors are tested at the University of Nebraska according to the Agricultural Tractor Test Code approved by the American Society of Agricultural Engineers and the Society of Automotive Engineers or official Nebraska test procedure. The manufacturer selects the tractor to be tested and certifies that it is a stock model. Each tractor is equipped with the common power consuming accessories such as power steering, power lift pump, generator, etc., if available. Power consuming accessories may be disconnected only when the means for disconnecting can be reached from the operating station. An official representative of …