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20th Tactical Air Support Sq. Danang AB, RVN


The 20th TASS was activated as part of the 505th Tactical Control Group on 8 Nov 1965 and was only a part of the Group for 10 when it was attached to 6250th Tactical Air Support Group Provisional on 1-8 Sep 1966. Eventually, the 20th TASS became a part of the 504th Tactical Air Support Group (8 Dec 66).   During it's time with the 505th TCG, the unit was commanded by Lt Col Sam Pool, (by Dec) 1965 and Lt Col Elvadore Ritter, (by Jun) 1966.

While a part of the 505th TCG,  the 20th TASS earned a Presidential Unit Citation and the Air Force Outstanding Unit Citation with Combat "V" Device as well as the Republic of Vietnam Gallantry Crosses with Palm.

This information is taken from a transcript of the Official USAF History of the 20th TASS.

Notations regarding the 20th TASS in the 505th TCG History

Messing With FAC's

A true story written by an Army helicopter door gunner about the consequences of messing with FAC's.



  • Constituted 20th Transport Squadron on 22 Nov 1940. 
  • Activated on 15 Dec 1940. 
  • Redesignated: 20th Troop Carrier Squadron on 5 Jul 1942;
  • 20th Troop Carrier Squadron (Special) on 13 Nov 1943;
  • 20th Troop Carrier Squadron on 12 Apr 1944;
  • 20th Troop Carrier Squadron, Heavy, on 17 Jun 1948;
  • 20th Troop Carrier Squadron, Medium, on 4 Oct 1948. 
  • Inactivated on 20 Oct 1949. 
  • Consolidated (19 Sep 1985) with the unit constituted 20th Tactical Air Support Squadron (Light), and activated, on 26 Apr 1965. 
  • Organized on 8 May 1965. 
  • Inactivated on 1 Apr 1973. 
  • Redesignated 20th Tactical Air Support Squadron, and activated, on 1 Oct 1973. Inactivated on 30 Sep 1984.
  • Activated on 1 Apr 1990.

Supersedes entry contained in Maurer Maurer (ed.), Combat Squadrons of the Air Force, World War II (1969; reprint edition, Washington:USGPO, 1982), pp. 109-110, and all subsequent updates.

Click on the decoration above to see 20th TASS Awards & Decorations


  • Panama Canal Department, 15 Dec 1940;
  • Panama Air Depot, 1 Feb 1941;
  • 6th Air Force Base (later, 6th Air Force Service; VI Air Force Service) Command, 5 Jun 1942;
  • Panama Air Depot, 1 Dec 1944;
  • Sixth Air Force (later, Caribbean Air Command) , 5 May 1945 (attached to 314th Troop Carrier Group [later, 314th Troop Carrier Group, Heavy;
  • 314th Troop Carrier Group, Medium], c. Nov 1946-16 Jun 1948);
  • 314th Troop Carrier Group, Medium, 17 Jun 1948-20 Oct 1949 (detachment attached to United States Air Forces in Europe, 1-29 Jul 1948, and to Airlift Task Force [Provisional], 29 Jul-19 Oct 1948)
  • Pacific Air Forces, 26 Apr 1965;
  • 2d Air Division, 8 May 1965 (attached to Tactical Air Support Group Provisional, 6250th, 1 Aug-7 Nov 1965);
  • 505th Tactical Control Group, 8 Nov 1965 (attached to Tactical Air Support Group Provisional, 6250th, 1-8 Sep 1966 and to Tactical Air Support Group Provisional, 6253rd, 9 Sep - 7 Dec1966);
  • 504th Tactical Air Support Group, 8 Dec 1966;
  • 366th Tactical Fighter Wing, 15 Mar 1972;
  • 6498th Air Base Wing, 27 Jun 1972;
  • 71st Tactical Air Support Group, 15 Jan-1 Apr 1973.
  • 601st Tactical Air Support Group, 1 Oct 1973;
  • 601st Tactical Control Wing, 1 Nov 1975;
  • 601st Tactical Air Support Group, 1 May 1977-30 Sep 1984.
  • 507th Tactical Air Control Wing, 1 Apr 1990-.


  • France Field, Canal Zone, 15 Dec 1940;
  • Howard Field, Canal Zone, 19 Feb 1942;
  • Albrook Field (later, Albrook AFB) Canal Zone, 9 Jun 1943-20 Sep 1948;
  • Bergstrom AFB, Texas, 4 Oct 1948; 
  • Smyrna AFB, Tenn, 27 Jan-20 Oct 1949.
  • Da Nang AB, South Vietnam, 8 May 1965-15 Jan 1973;
  • George AFB, Calif, 15 Jan-1 Apr 1973.
  • Wiesbaden AB, West Germany, 1 Oct 1973;
  • Sembach AB, West Germany, 8 Jan 1976-30 Sep 1984.
  • Shaw AFB, SC, 1 Apr 1990-.


  • lst Lt (later, Maj) Harry C Morrison, 15 Dec 1940,-
  • Capt Donald K Mumma, 3 Sep 1942;
  • Capt (later, Maj) James W Guthrie, 18 Oct 1942;
  • Capt (later, Maj) Raynold A Berg, 8 Oct 1943;
  • Maj Frederick A Sanders, 1944;
  • Capt (later, Maj) Gerald Linscheid, 9 Dec 1944;  
  • Maj Sidney E Cleveland, 14 Feb 1946;
  • Maj Irving R Perkin, May 1947;
  • Maj William H Beale Jr, (by Jan 1949) ;
  • Lt Col Elmer C Blaha, (by Jul)-20 Oct 1949.
  • 1st Lt Frederick A Reiling, (by Jun) 1965;
  • Lt Col Sam Pool, (by Dec) 1965;
  • Lt Col Elvadore Ritter, (by Jun) 1966;
  • Lt Col Paul V Greenwade Jr, (by Oct 1967);
  • Lt Col Herbert W McQuown, 7 Feb 1968;
  • Lt Col Benjamin F Starr Jr, 10 Sep 1968;
  • Lt Col Alvin M Welbes, 24 Jan 1969;
  • Lt Col Laurence W Lackey, 24 Nov 1969;
  • Lt Col Hyrum G Keeler, 1 Jun 1970;
  • Lt Col Colvin L Sammons, 15 Mar 1971;
  • Lt Col Ralph W Haymaker, 28 May 1971;
  • Lt Col Lawton C Brown, 25 Oct 1971;
  • Lt Col Gabriel A Kardong, 25 Feb 1972;
  • Lt Col Richard E Leal, 10 Nov 1972-15 Jan 1973;
  • None (not manned), 16 Jan-1 Apr 1973.
  • Lt Col George W Grill Jr, 1 Oct 1973;  
  • Lt Col Robert B Clayton Sr, 20 Jan 1975;
  • Maj (later, Lt Col) Robert E Riggs, 20 May 1977;
  • Lt Col Robert M Staples, 6 Oct 1978;
  • Lt Col Dennis C Torrez, 26 Nov 1980;
  • Lt Col Thomas M Power, 13 Dec 1982;
  • Maj Andrew E Dohany, 15 Apr-30 Sep 1984.


  • C-33, 1941;
  • C-39, 1941-1944;
  • C-49, 1941-1944;
  • C-47, 1942-1948, 1949;
  • OA-10, 1942-1943, 1943-1945;
  • UC-91, 19421943;
  • C-79, 1942-1943;
  • UC-89, 1942-1943;
  • C-38, 1942-1943;
  • XB-15 (later, XC-105), 1943-1944;
  • L-1, 1943-1945;
  • BC-1, 1943-1944;
  • L-4, 1943-1944;
  • UC-61, 1943-1945;
  • C-45, 1944-1945;
  • C-46, 1945-1947;
  • C54, 1946-1948;
  • C-82, 1948-1949;
  • CG-15, 1949;
  • 0-1, 1965-1969; 
  • 02, 1967-1973;
  • OV-10, 1969-1973.;
  • 0-2, 1973-1974;
  • OV-10, 1974-1984.  


The 20th Transport Squadron activated at France Field, Panama Canal Zone, on 15 Dec 1940, but had only one officer and no airplanes until Feb 1941. The squadron became operational by Mar 1941, hauling cargo on local flights with C-33s. In Apr 1941 the 20th received C-39 aircraft, and on 11 May made its first out-of-country flight, to Managua, Nicaragua. Before the end of the year, the squadron was flying to destinations throughout the Caribbean area, Central America, South America, and sometimes to the United States, transporting passengers, mail, and supplies in support of U.S. forces.

In Nov 1941, the squadron established a flight at Howard Field to handle local missions and a month later, another flight at Waller Field, Trinidad. The Howard Field flight ceased operations when the squadron moved from France Field to Howard Field in Feb 1942, but the Trinidad detachment operated, as did a third detachment established in Puerto Rico in Jun 1942, until Dec 1943. Redesignated 20th Troop Carrier Squadron in Jul 1942. Moved again in Jun 1943, this time to Albrook Field.

The 20th TCS flew many different types of aircraft between 1941 and 1949, several being one of a kind, such as the XC-105, the only four-engined aircraft that it possessed during World War II. It also flew, except for the first half of 1943, OA-10s in emergency rescue missions over the Pacific Ocean and Caribbean Sea from Jun 1942-Aug 1945. In May 1946 the squadron received C-54 aircraft. The 20th TCS moved in Sep 1948 from Panama to Bergstrom AFB, Texas. It left all aircraft and equipment at Albrook, except for a detachment of C-54s that had left Albrook in Jul 1948 to participate in the Berlin Airlift. At Bergstrom, the 20th TCS received C-82 aircraft in Nov 1948 and began transition training. In early Jan 1949, the squadron's air echelon deployed seven C-82s on temporary duty to Kearney AFB, Nebraska, to transport supplies to snowbound ranchers and farmers, while the rest of the squadron moved at the end of Jan to Smyrna AFB, Tenn. The C-82s and aircrews arrived at Smyrna in late Feb 1949. While at Smyrna, the 20th trained with U.S. Army paratroopers in airborne tactics and carried cargo about the United States. The squadron inactivated on 20 Oct 1949. 

The 20th Tactical Ai-r Support Squadron organized on 8 May 1965 at Da Nang AB, Republic of Vietnam. It received its first O-lF aircraft in late May and began operations in Aug 1965. Provided visual reconnaissance and airborne forward air control for tactical offensive operations, and also gave theater indoctrination flight checkouts in assigned aircraft for newly assigned aircrews in Southeast Asia. As the squadron expanded its operations, it established several detachments at forward locations throughout South Vietnam. In Jan 1969, received first OV-10A, and in July transferred its last 0-1. By Oct 1969, the 20th operated from Da Nang and eleven forward locations, supporting five U.S. Army and six South Vietnamese Army forces locations.  

The U.S. Armed Forces gradually withdrew from South Vietnam in 1970-1972, and the 20th discontinued its forward operating locations in 1971 and early 1972. Then, after the North Vietnamese invaded the south in Apr 1972, the 20th again set up forward operating locations. In Jun 1972, it flew three times the missions it had in mar, prior to the invasion. In addition to FAC, liaison, observation, and reconnaissance missions, the 20th, in response to enemy rocket attacks on Da Nang AB during 1972, provided base defense with the OV-10A aircraft equipped with small bombs, 2.75 inch rockets, and 7.62 mm guns. In Jan 1973, the squadron discontinued its last forward operating location, flew its last mission, turned its 0-2As over to the Vietnamese Air Force and its OV-lOAs to other USAF squadrons in Southeast Asia. On 15 Jan 1973 the squadron moved, without personnel or equipment, to George AFB, Calif, where it remained unmanned until it inactivated on 1 Apr 1973 . 
On 1 Oct 1973 the 20th TASS activated at Wiesbaden AB, West Germany, to provide forward tactical air control for U.S. Army, Europe, and Seventh Army operations. The squadron had only three 0-2A aircraft available until Jul 1974, when it began flying OV-10A aircraft. Engaged in close air support training during USAFE, NATO, and U.S. Army exercises, its pilots served as both ground and airborne forward air controllers. During training exercises, the 20th deployed to and flew from bases in Italy, Spain, Denmark, Turkey, England, Belgium, West Germany, and The Netherlands. In Jan 1976, the squadron moved with the 601st Tactical control Wing to Sembach AB, West Germany. In May 1981, it added search and rescue missions to its tasks. In 1984, lost all OV-10 aircraft, squadron aircrews ferrying them to George AFB, Calif, Jun-Aug 1984. squadron inactivated on 30 Sep 1984. 

Activated on 1 Apr 1990 at Shaw AFB, SC, as part of the 507th Tactical Air Control Wing. 


Description: On a disc divided fesswise nebuly of two, azure (ultramarine) and gules (pimento), the partition line fimbriated argent, overall palewise a flight symbol or, encircled by 20 mullets of the third, all within a diminished bordure of the second fimbriated of the third. Above and below the disc two scrolls edged gules, the one below inscribed with the words FIRST ON TARGET in letters gules.  Significance Ultramarine blue and golden yellow are the official Air Force colors. The blue sky and the color red representing the embattled ground forces protected by the gold flight symbol, all refer to the tactical squadron's mission to provide Air Force-Army interface and close control of tactical air with accurate placement of air delivered ordnance. The 20 stars symbolize the 20th Tactical Air Support Squadron's excellence of performance.



Approved on 25 Jun 1974.  
Photographic negative number: KE30690.


For those of you who knew him, I found this on the net.

Colonel Gabriel Kardong

25 Mar 1933 - 21 Jul 1996

Gabriel "Abe" Kardong, aviator, died Sunday after a year long bout with leukemia. He made Spokane his home after a 26 year Air Force career which spanned the globe.

A "Mustang" (non-degreed former enlisted man), he flew the best and the fastest the Air Force had to offer including the B-58 and the SR-71. He also flew 145 forward air controller missions in Vietnam while commanding the 20th TASS at DaNang. He received 2 Distinguished Flying Crosses and 20 other decorations. He retired as a Colonel.

After his Air Force retirement, Kardong flew for corporate aviation, wrote aviation articles and lectured. He is survived by his children Suzan Kardong-Edgren of Flower Mound, TX, Greg Kardong of Moses Lake, WA, Christine Ruperto of Sewickley, PA, and 4 grandchildren

Webmaster note: Col. Kardong was commanding officer of the 20th TASS from Feb. 1972 to Nov. 1972.


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Copyright, 1997-2007 by Kenneth L. Kimbrough

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This is an Unofficial site, prepared and maintained by a U.S. Air Force veteran. It is not in any way sponsored by, approved by, or otherwise sanctioned by the United States Air Force.  Please email the webmaster at webmaster@squawk-flash.org if you experience difficulties with the site.

Copyright, 1997-2007 by Kenneth L. Kimbrough