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- Q49553 subject Q8372196.
- Q49553 abstract "The Delta M or Thor-Delta M was an American expendable launch system used for thirteen orbital launches between 1968 and 1971. It was a member of the Delta family of rockets.The Delta M had a three-stage configuration. The first stage was the Long Tank Thor, a stretched version of the Thor missile, previously flown on the Delta L. Three Castor-2 solid rocket boosters were attached to the first stage to increase thrust at lift-off. A Delta E was used as the second stage, and the third stage was a Star-37D solid rocket motor. On the final flight, six boosters were flown instead of three, in a configuration known as the Delta M6, or "Super Six".All thirteen launches were made from Launch Complex 17A at the Cape Canaveral Air Force Station. The first launch (carrying Intelsat 301) on September 18, 1968 was a complete failure when the first stage began suffering abnormal pitch gyrations starting at T+20 seconds. The booster maintained a stable attitude until around T+100 seconds when it pitched over and began to break up from structural loads. As the Delta was also headed back towards land, Range Safety sent the destruct signal at T+108 seconds. The fifth launch on July 25, 1969 (Intelsat 305) suffered a rupture of either the third stage casing or nozzle and ended up in an unusable orbit. Of the thirteen launches, twelve carried geosynchronous communications satellites. The thirteenth, which was the final flight and the only one in the M6 configuration, placed Explorer 43 into a highly elliptical orbit.".
- Q49553 countryOrigin Q30.
- Q49553 failedLaunches "2".
- Q49553 finalFlight "1971-03-17".
- Q49553 launchSite Q334465.
- Q49553 maidenFlight "1968-09-18".
- Q49553 rocketFunction Q15078724.
- Q49553 status "Retired".
- Q49553 successfulLaunches "11".
- Q49553 thumbnail Delta-M_launching_Intelsat-3_satellite.jpg?width=300.
- Q49553 totalLaunches "13".
- Q49553 wikiPageWikiLink Q1034324.
- Q49553 wikiPageWikiLink Q1135571.
- Q49553 wikiPageWikiLink Q149918.
- Q49553 wikiPageWikiLink Q15078724.
- Q49553 wikiPageWikiLink Q15977211.
- Q49553 wikiPageWikiLink Q30.
- Q49553 wikiPageWikiLink Q334465.
- Q49553 wikiPageWikiLink Q38982.
- Q49553 wikiPageWikiLink Q4130.
- Q49553 wikiPageWikiLink Q472251.
- Q49553 wikiPageWikiLink Q48970.
- Q49553 wikiPageWikiLink Q49506.
- Q49553 wikiPageWikiLink Q49551.
- Q49553 wikiPageWikiLink Q766026.
- Q49553 wikiPageWikiLink Q8372196.
- Q49553 fail "2".
- Q49553 first "1968-09-18".
- Q49553 function Q15078724.
- Q49553 last "1971-03-17".
- Q49553 launches "13".
- Q49553 sites Q1034324.
- Q49553 sites Q334465.
- Q49553 status "Retired".
- Q49553 success "11".
- Q49553 type MeanOfTransportation.
- Q49553 type Rocket.
- Q49553 type DesignedArtifact.
- Q49553 type Thing.
- Q49553 type Q41291.
- Q49553 comment "The Delta M or Thor-Delta M was an American expendable launch system used for thirteen orbital launches between 1968 and 1971. It was a member of the Delta family of rockets.The Delta M had a three-stage configuration. The first stage was the Long Tank Thor, a stretched version of the Thor missile, previously flown on the Delta L. Three Castor-2 solid rocket boosters were attached to the first stage to increase thrust at lift-off.".
- Q49553 label "Delta M".
- Q49553 depiction Delta-M_launching_Intelsat-3_satellite.jpg.