Thor family

Thor Delta D

RetiredUnited StatesMcDonnell DouglasSpec: Delta D

American orbital launch vehicle family with Thor first stage and a delta second stage.

Flights flown2
Success rate100%2/2
Payload to LEO450kg
Cost per kg to LEO$28,267$12.7M per launch
Maiden flight1964-08-19
Peak year19641 flight

Thor Delta D is built by McDonnell Douglas of the United States. It first flew on 19 August 1964 and last flew on 6 April 1965.

Flight record

2 records
100% success rate2 of 2 flown
1964peak 1964 · 1 flight1965
First flight1964-08-19
Latest flight1965-04-06
Failures0
Consecutive successes2
Fastest turnaround230d 11h

Payload

Per mission profile
Low Earth orbit450kg
Geostationary transfer orbit104kg
Launch cost$12.7M
Cost per kg to LEO$28,267

Vehicle

Delta D spec
Stages4
Length32m
Diameter2.44m
Launch mass63t
Liftoff thrust1,571kN
Maiden flight1964-08-19
ReusableNo

Pads used

1 pad

Orbits delivered

1 orbit
Geosynchronous Orbit2

Launch history

2 launches
DateMissionPadOrbitOutcome
1965-04-06Thor Delta D | Early BirdSpace Launch Complex 17AGeosynchronous OrbitSuccess
1964-08-19Thor Delta D | Syncom 3Space Launch Complex 17AGeosynchronous OrbitSuccess

Specifications from Launch Library 2 by The Space Devs, launch records from Space Index. Derived figures are computed here; see sources and method.

Further reading: Wikipedia

Fewer than three recorded flights, so this page is marked noindex. It is here for completeness, not for search.