Boeing YC-14 Upper Surface Blowing & C-130 Hidden Facts

Support me on Patreon :   / letsgoaviate   The Boeing YC-14 has been covered on Youtube, but never in technical terms describing how the Upper Surface Blowing works. Some technical aspects of the C-130 it was supposed to replace are not published, and it actually compared better against the YC-14 than is usually told. In this video we cover both the YC-14's STOL capabilities and the C-130's somewhat hidden capability. C-130 Aircrew Workbook : https://www.scribd.com/document/68305... USB Environment Measurement Ground Tests : https://ntrs.nasa.gov/citations/19780... IMAGES ATTRIBUTION C-130 production-author Stadtarchiv Linz am Rhein (https://creativecommons.org/licenses/... Northwest Territorial L-100-author Eduard Marmet (https://creativecommons.org/licenses/... McDonnell Douglas YC-15-author Mike Freer (https://en.wikipedia.org/wiki/GNU_Fre... changes Turboprop diagram-author Original: Emoscopes Vector: M0tty (https://creativecommons.org/licenses/... changes Bangladesh Air Force Lockheed C-130B-author Faisal Akram from Dhaka, Bangladesh (https://creativecommons.org/licenses/... General Electric CF6-50-author Zenwort (https://creativecommons.org/licenses/... text DC-10-30-author G B_NZ (https://creativecommons.org/licenses/... text Air Jamaica Airbus A300B4-203-author Torsten Maiwald (https://en.wikipedia.org/wiki/GNU_Fre...) overlaid text Qantas Boeing 747-200-author Dejan Milinković (https://en.wikipedia.org/wiki/GNU_Fre... text C-130H Super Hercules schematic-author Jetijones (https://creativecommons.org/licenses/... out individual views Boeing YC-14 planform-author Markutsch. Cut out individual views Propulsive efficiency for different engine types-author Pedro Alves,Miguel Silvestre, and Pedro Gamboa (https://creativecommons.org/licenses/... arrows & text Tupolev Tu-114-author Lev Polikashin (https://creativecommons.org/licenses/... Tupolev Tu-114 Aeroflot-author Carlos Menendez San Juan (https://creativecommons.org/licenses/...) no changes Contra-rotating propellers-author MichaelFrey (https://creativecommons.org/licenses/...) no changes Size comparison C-17 A400M C-130J-30 C-130J-author Sitacuisses (https://creativecommons.org/licenses/... out top C-130 PW4098 turbofan-author N509FZ (https://creativecommons.org/licenses/... Antonov An-72S-author Igor Dvurekov (https://creativecommons.org/licenses/...) crop + zoom Antonov An-72/74-author Faebot (https://creativecommons.org/licenses/...) crop+zoom Boeing 737-200 schematic-author Julien.scavini (https://creativecommons.org/licenses/...) only used top and front view Scrapped Boeing YC-14-author kitmasterbloke (https://creativecommons.org/licenses/...) crop+zoom Antonov An-72-author IRONHIDE (https://creativecommons.org/licenses/...) crop+zoom Antonov An-72-author Anna Zvereva from Tallinn, Estonia (https://creativecommons.org/licenses/...) crop+zoom VIDEO ATTRIBUTION German Air Force Airbus A310 by The Mighty Spotter (   • [4K] German Air Force Airbus A310-304 MRTT...  ), License CC-BY C-130 Hercules Progress Report by C-130 Hercules Progress Report (   • C-130 Hercules Progress Report  ), License CC-BY Footage of U.S. Navy C-130 carrier suitability trials aboard USS Forrestal, 1963, filmed by the U.S. Department of Defense (U.S. Navy) Footage of Boeing YC‑14 flight testing, June 1977, filmed by U.S. Air Force, National Archives ID 342-USAF-50638 Arrival of the C130J 'Samson' by U.S. Embassy Tel Aviv (https://creativecommons.org/licenses/...) cut short clip turbofan engine animation-author Zephyris (https://creativecommons.org/licenses/..., no changes UPS A300 [N152UP] Takeoff Portland Airport (PDX) by PDX Aviation (   • UPS A300 [N152UP] Takeoff Portland Airport...  ), License CC-BY STALL UNMASKED: From 0° to Chaos by Felipe Correa (   • STALL UNMASKED: From 0° to Chaos NACA 2412...  ), License CC-BY Ан-72 посадка by Airbus A380 (   • Ан-72 посадка.  ), License CC-BY Antonov An-74 UTAIR CARGO by RUNWAY FUN Gadget News (   • Antonov An-74 UTAIR CARGO RA-74013 Narita ...  ), License CC-BY MV-22B Osprey by U.S. Navy (   • MV-22B Osprey with 3-D Printed Parts Takes...  ), License CC-BY African Lion 2023: The U.S. Air Force Takes on C-130H Pre-Ops and Dirt Landings by Defense Now (   • Видео  ), License CC-BY 2025 09 11 Electra EL2 at Watertown International Airport by Electra (   • 2025 09 11 Electra EL2 at Watertown Intern...  ) copyright Electra Chapters 0:00 YC-14 and C-130 0:39 Lockheed C-130 Hercules 6:07 Boeing YC-14 8:03 Turboprops vs Turbofans 11:47 Upper Surface Blowing (USB) 15:07 Upper Surface Blowing Concerns 21:13 Dead Science or the Future?