World’s most powerful rocket to make debut SpaceX is to attempt the first launch of its Falcon Heavy rocket. With 27 engines generating five million pounds of thrust at liftoff, the triple-core booster will be the world’s most powerful launch vehicle First payload will be SpaceX founder Elon Musk’s Tesla Roadster, bound for Mars orbit Falcon Heavy 70 metres Payload fairing Second stage Inter-stage adapter Grid fins control flight when boosters returnto Earth First stage Landing legs Total of 27 Merlin 1D engines, fuelled by liquid oxygen and kerosene, able to produce thrust equal to around 18 Boeing 747 aircraft Only Saturn V moon rocket, last flown in 1973, delivered more payload to orbit Payload Rocket designed to launch payloads up to 57 tonnes, allowing SpaceX to move into new satellite launch markets and eventually loft astronauts beyond Earth orbit Second stage Powered by single Merlin engine, modified to operate in vacuum of space First stage Consists of two existing Falcon 9 boosters strapped to central core stage Land 1. Lift-off 2. Side boosters separate from central core 3. Boosters flip over before descent Launch 4. Boosters touch down simultaneously 5. Payload fairing separates from central core 6. Central core flips over 7. Central core lands on offshore recovery platform 8. Tesla sent on trajectory aimed for Mars orbit Ocean Landing Rocket designed to be reusable, with all three boosters built to fly back to Earth Falcon Heavy launches start at $90 million Side boosters: Land on two concrete pads at Cape Canaveral Landing legs fold down to stabilise rocket Central core: Lands on barge Source and picture: SpaceX