List of B - 47 units of the United States Air Force The Boeing B - 47 Stratojet was operational with the United States Air Force Strategic Air Command beginning in May 1951 with the first operational B - 47As to the 306th Bombardment Wing , Medium , based at MacDill AFB , Florida . In March 1961 , President John F . Kennedy directed the phaseout of the B - 47 . However this was delayed in July by the onset of the Berlin crisis of 1961 - 62 . In the following years , B - 47s were gradually delivered to the Military Aircraft Storage and Disposition Center ( MASDC ) at Davis - Monthan AFB . Strategic Air Command B - 47 Bombardment Wings were divided among the Second , Eighth and Fifteenth Air Force s . This list is of the units B - 47s were assigned to , and the bases at which they were stationed . B - 47 Medium Bombardment units . The first operational B - 47B Medium bombers were delivered to SAC in July 1951 to the 306th Bombardment Wing , MacDill AFB , Florida . SAC ' s last two B - 47E bombers went to storage on 11 February 1966 from the 98th Bombardment Wing , Lincoln AFB , Nebraska . Operational medium bomber versions of the Stratojet were B - 47B ( 1951 – 1953 ) and B - 47E ( 1953 – 1957 ) . B - 47Bs were modified to B - 47E specifications beginning in 1953 to 1957 . By 1957 , the B - 47Bs had effectively ceased to exist , having been brought up to the B - 47E standard . These modified B - 47Bs are sometimes known as B - 47B - II , although this was not an official Air Force designation . Outwardly , they could be distinguished from B - 47Es only by their serial numbers . . * Activated as a result of the SAC phaseout and consolidated of B - 47 units as the Stratojet began being replaced by B - 52 . . * * Three modified 55th SRW B - 47Es ( 53 - 2315 , 53 - 2316 and 53 - 2320 ) from Forbes AFB were modified and redesignated as EB - 47E Tell Twos . Deployed to a SAC Detachment ( TUSLOG Det - 50 ) at Incirlik AB , Turkey to monitoring the telemetry that was broadcast during Soviet space launches from the IRBM facility at Kasputin Yar and the space center at Tyuratam . In service from 1958 until about 1967 . In addition , the 301st BW and 380th BW also operated EB - 47Es which were electronics countermeasure conversions of the standard B - 47E . Not much is known about the USAF EB - 47E program . . * * * The B - 47As of the 306th BW were primarily training aircraft and were not considered as being combat ready . None of the B - 47As ever saw any operational duty , and were withdrawn from active service by 1953 , being replaced by B - 47Bs . . + Equipped with the YRB - 47B conversion of the B - 47B , specifically intended for the training of crews for RB - 47Es . Later converted to B - 47E Bomber Configuration by March 1955 . + + 376th BW EB - 47Ls were modified B - 47Es used as an electronics communications aircraft which served as relay stations between other aircraft ( such as the USAF " Looking Glass " EC - 135 ) or between aircraft and ground stations during and after a nuclear attack . RB - 47 Strategic Reconnaissance units . The RB - 47 was designed to replace the RB - 29 and RB - 50 Superfortress aircraft which were serving in the long - range photo - reconnaissance role but which were rapidly approaching obsolescence . The RB - 47 carried out many ferret missions around the periphery of Soviet territory , and sometimes inside on penetration flights to map planned routes for B - 52s if combat missions over the Soviet Union ever became necessary . The reconnaissance production model was the RB - 47E , with USAF deliveries beginning in 1953 . The last of 255 RB - 47Es were delivered in August 1955 . The YRB - 47B was a prototype conversion of the B - 47B specifically intended for the training of crews for RB - 47Es . Delays in delivering the RB - 47E , led to 90 B - 47 ’ s being converted to an interim reconnaissance fit with an 8 camera bomb - bay pod . The 91st Strategic Reconnaissance Wing received its first YRB - 47B in April 1953 , the 26th Strategic Reconnaissance Wing three months later , using them until they were swapped for the new RB - 47E in 1954 . The RB - 47H was an electronic reconnaissance and countermeasures version , with 35 aircraft being manufactured and delivered to the 55th Strategic Reconnaissance Wing at Forbes AFB , Kansas in August 1955 . A specialized version , the ERB - 47H was a dedicated electronic ferret modification of three aircraft . Fifteen RB - 47Ks ( 53 - 426 to 53 - 4279 ) were also operated by the 55th SRW , 338th SRS . The RB - 47K differed from the RB - 47E by the addition of high - resolution , side - looking radars ( SLAR ) and air sampling equipment . It was used as an airborne weather information gathering system which would fly near the Soviet Border and sampling the radioactive fallout from nuclear tests . These were among the last Stratojets built . Phaseout of the RB - 47E began in October 1957 , but the aircraft remained in service for another decade , with the last SAC B - 47 , a RB - 47H ( 53 - 4296 ) of the 55th SRW was flown to Davis Monthan AFB for storage on 29 December 1967 . These models were replaced with the Lockheed U - 2 and SR - 71 strategic reconnaissance aircraft . . * RB - 47Bs were operated during 1953 - 54 by the 26th SRW . Unlike the later RB - 47E , the RB - 47B could only provide daylight photographic coverage WB - 47E Weather Reconnaissance units . WB - 47E was the designation assigned to converted SAC B - 47E medium bombers used for weather reconnaissance by the Air Weather Service ( AWS ) . They had nose - mounted cameras that recorded cloud formations , and they carried air - sampling and data recording equipment inside a sensor pod in the bomb bay . The first of 34 WB - 47Es was delivered to the AWS on 20 March 1963 . The last operational USAF B - 47 to fly was WB - 47E - 75 - BW ( 51 - 7066 ) of the 55th Weather Reconnaissance Squadron on 30 October 1969 . It was flown from McClellan AFB , California to Boeing Field , Washington , where subsequently it was restored to its SAC configuration and put on display at the Seattle Museum of Flight where it resides today . Provisional 4 - Digit Training Units . B - 47 training was originally planned to have been performed at Wichita AFB , Kansas , with Boeing manufacturing the aircraft on one side of the base as a joint tenant beginning in 1951 . However a variety of problems converting the Wichita Municipal Airport to an Air Force Base kept training from being performed there until 1954 . To accommodate B - 47 training , Air Training Command activated Pinecastle AFB , Florida , on 10 September 1951 for B - 47 training , however the training did not begin until early 1952 with the activation of the 3540th Combat Crew Training Wing . B - 47 crew training was moved from Pinecastle AFB to McConnell AFB in 1954 ; conducted under Air Training Command until 30 Dec 1958 when was reassigned to SAC . With the reassignment of the crew training wing , operational transition training on the B - 47 began at Pinecastle with the 321st Bombardment Wing . Crew training on the B - 47 ended in June 1963 as part of the planned aircraft phaseout and retirement .