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CASC · Operational · cn · Launch Vehicle

Long March 7

Medium-lift rocket for Tianzhou cargo supply to China Space Station.

Verified 2026-06-17 · First flight 2016-06-25

Operator page

Systems cutaway

Systems
Long March 7 — systems cutaway schematicPropulsion
YF-100 kerosene/LOX core engines + 4× YF-100 strap-ons; 7,200 kN liftoff thrust; YF-115 second stage.
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Structures
3.35 m core + 4× 2.25 m strap-ons; 53.1 m height; designed to carry Tianzhou cargo spacecraft.
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Long March 753.1 m
Propulsion

YF-100 kerosene/LOX core engines + 4× YF-100 strap-ons; 7,200 kN liftoff thrust; YF-115 second stage.

Structures

3.35 m core + 4× 2.25 m strap-ons; 53.1 m height; designed to carry Tianzhou cargo spacecraft.

Specs & Metrics

Payload to LEO ↑ better
13,500 kg
Maximum payload mass deliverable to low Earth orbit (~200–400 km circular), in the vehicle's stated reference configuration.
Payload to GTO ↑ better
4,000 kg
Maximum payload mass deliverable to geostationary transfer orbit (~185 × 35,786 km), in the stated reference config.
Liftoff Thrust ↑ better
7200 kN
4 × YF-100 boosters (4,800 kN) + 2 × YF-100 core (2,400 kN)
Total first-stage thrust at liftoff (sea-level), in kilonewtons, summing all active engines and solid strap-ons.
Liftoff Mass ↓ better
597 t
Total vehicle mass at liftoff including propellant, payload, and all stages, in metric tonnes.
Vehicle Height ↓ better
53.1 m
Full stack height at liftoff, in metres, including fairing or spacecraft.
Launches in 2025 ↑ better
1
Tianzhou 9 on July 14, 2025
Total number of launch attempts conducted in calendar year 2025 (Jan 1 – Dec 31 UTC).

Subsystems

propulsion

YF-100 kerosene/LOX core engines + 4× YF-100 strap-ons; 7,200 kN liftoff thrust; YF-115 second stage.

structures

3.35 m core + 4× 2.25 m strap-ons; 53.1 m height; designed to carry Tianzhou cargo spacecraft.