Question: Which aircraft did the T-6b replace in the American Naval squadrons after the flight hours were published in 2009 ?

text: List of United States Navy aircraft squadrons
Fixed Wing Squadrons -- Training ( VT )
T-45 Goshawk T-6B Texan II T-44 Pegasus The VT designation was one of the original designations . It was established in 1921 to designate `` Torpedo Plane Squadron '' . From 1922 to 1930 it designated `` Torpedo & Bombing Squadron '' and from 1930 to 1946 `` Torpedo Squadron '' . [ 27 ] In 1946 all remaining Torpedo Squadrons and Bombing Squadrons ( VB ) were redesignated `` Attack Squadrons '' ( VA ) and the VT designation was retired . [ 28 ] From 1927 to 1947 training squadrons were designated `` VN '' . [ 29 ] From 1947 to 1960 training units were not designated as squadrons , they were `` units '' or `` groups '' called Basic Training Groups ( BTG ) , Advanced Training Units ( ATU ) , Jet Transition Training Units ( JTTU ) or Multi Engine Training Groups ( METG ) . On 1 May 1960 the VT designation was resurrected and existing flying training units were designated `` Training Squadrons ( VT ) '' . [ 29 ] There is no relationship between training squadrons designated VT in 1960 and the Torpedo or Torpedo and Bombing squadrons of the 1920s to 1940s . There are two types of fixed wing training squadrons : Primary training squadrons train students in the first stage of flight training leading to selection to one of three advanced training pipelines for Aviators ( Rotary Wing , Strike or Multi-Engine ) or two advanced training pipelines for Flight Officers ( Multi Crew or Strike ) . The advanced training squadrons conduct the final stage of flight training leading to `` winging '' of the new Naval Aviators and Naval Flight Officers in the Navy , Marine Corps , and Coast Guard . Training squadrons are organized differently than the Navy 's operational squadrons as training squadrons do not own their own aircraft . All training aircraft are assigned to and maintained by the Training Air Wing to which the squadrons are assigned . The training squadrons are composed only of Instructors and Students , with all maintenance and support functions carried out by the Training Air Wing . Training aircraft are painted orange and white .
This is a list of active United States Navy aircraft squadrons. Deactivated or disestablished squadrons are listed in the List of Inactive United States Navy aircraft squadrons. Navy aircraft squadrons are composed of several aircraft (from as few as about four to as many as about a dozen), the officers who fly them, the officers and sailors who maintain them and administrative support officers and sailors. Some of the units listed in this article are not technically squadrons, but they all operate U.S. Navy aircraft in some capacity. Squadrons and their history are listed in the Dictionary of American Naval Aviation Squadrons (DANAS).
Squadron Designation Nickname Aircraft Operational and Administrative Commander Squadron Lineage Notes
VT-2 Doerbirds T-6B Commander , Training Air Wing FIVE BTG-2 : ? ? -1 May 1960 VT-2 : 1 May 1960-present Primary Training , based at NAS Whiting Field
VT-3 Red Knights T-6B Commander , Training Air Wing FIVE BTG-3 : ? ? -1 May 1960 VT-3 : 1 May 1960-present Primary Training , based at NAS Whiting Field
VT-4 Warbucks Multi-Crew Simulator Commander , Training Air Wing SIX BTG-9 : ? ? -1 May 1960 : VT-4 : 1 May 1960-present ( inactive Dec 2010-Jun 2013 ) NFO Advanced Training , based at NAS Pensacola Deactivated in Dec 2010 as an NFO primary training squadron and reactivated as an NFO advanced training squadron in Jun 2013
VT-6 Shooters T-6B Commander , Training Air Wing FIVE METG Whiting Field : 1 Jul 1956-1 May 1960 VT-6 : 1 May 1960 - present Primary Training , based at NAS Whiting Field
VT-7 Eagles T-45C Commander , Training Air Wing ONE BTG-7 : 1 Jun 1958-1 May 1960 VT-7 : 1 May 1960 - present Advanced Training , based at NAS Meridian
VT-9 ( Second training sqdn use ) Tigers T-45C Commander , Training Air Wing ONE VT-19 : 2 Aug 1971-1 Oct 1998 VT-9 ( 2nd ) : 1 Oct 1998-present Advanced Training , based at NAS Meridian ( There was an earlier training squadron designated VT-9 also called Tigers which existed from 15 Dec 1961 to Jul 1987 )
VT-10 Wildcats T-6A Commander , Training Air Wing SIX BNAO School* : Jun 1960-15 Jan 1968 VT-10 : 15 Jan 1968-present *Basic Naval Aviation Officer School NFO Primary Training , based at NAS Pensacola
VT-21 Redhawks T-45C Commander , Training Air Wing TWO ATU-202 : Apr 1951-1 May 1960 VT-21 : 1 May 1960 - present Advanced Training , based at NAS Kingsville
VT-22 Golden Eagles T-45C Commander , Training Air Wing TWO ATU-6 : 13 Jun 1949- ? ? JTTU-1 : ? ? - ? ? ATU-3 : ? ? - ? ? ATU-212 : ? ? -1 May 1960 VT-22 : 1 May 1960-present Advanced Training , based at NAS Kingsville
VT-27 Boomers T-6B Commander , Training Air Wing FOUR ATU-B : 11 Jul 1951- ? ? ATU-402 : ? ? -1 Jul 1960 VT-27 : 1 Jul 1960-present Primary Training , based at NAS Corpus Christi
VT-28 Rangers T-6B Commander , Training Air Wing FOUR ATU-611 : ? ? -1 May 1960 VT-28 : 1 May 1960-present Primary Training , based at NAS Corpus Christi
VT-31 Wise Owls T-44 C Commander , Training Air Wing FOUR ATU-601 : Feb 1958-1 May 1960 VT-31 : 1 May 1960 - present Advanced Training , based at NAS Corpus Christi
VT-35 Stingrays T-44 C Commander , Training Air Wing FOUR VT-35 : 29 Oct 1999-present Advanced Training , based at NAS Corpus Christi
VT-86 Sabrehawks T-45C Commander , Training Air Wing SIX VT-86 : 5 Jun 1972-present NFO Advanced Training , based at NAS Pensacola