India's space startup calls off maiden rocket launch for 4th time

India's Agnikul Cosmos called off a test flight of its first rocket on Tuesday seconds before it was due to launch — the fourth such cancellation in the last three months.

Launches of India's second privately built rocket, and first using a combination of gas and liquid fuel, had been aborted three times before because of technical issues, including one flight that was cancelled about 90 seconds before lift-off.

The launch, scheduled for 5.45am (4.15am UAE time) on Tuesday, was first delayed less than six minutes before lift-off "due to a technical glitch in the countdown activities", and officials set a new lift-off time of 9.25am (7.55am UAE time).

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Only five seconds before lift-off, however, the launch was put on "temporary hold to check igniter performance", then was called off altogether.

The mission was expected to last two minutes and test the new "semi-cryogenic" engine and 3D-printed parts. If successful, it would have represented a technological step for India, whose Indian Space Research Organisation (ISRO) has not yet successfully flown a semi-cryogenic engine, which uses a mix of liquid and gas for propellant.

Agnikul Cosmos' Agnibaan rocket is a customisable, 2-stage launch vehicle that can take up to 300kg (about 660lb) of payload to orbits about 700km in altitude (435 miles), the company said. SpaceX's Falcon Heavy can put up to 63,500kg to low Earth orbit.

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