The Indian Space Research Organisation (ISRO) may have to delay the first test flight of its experimental Reusable Launch Vehicle-Technology Demonstrator (RLV-TD) spaceplane. The unmanned sub-orbital spacecraft, which is similar in design to the US Air Force’s X-37B, was scheduled to be launched in February, but technical difficulties may put back the flight to the first week of April.
According to a report in the New Indian Express, a minor leak in the flight systems of the RLV-TD led to the potential setback. K Sivan, director of the Vikram Sarabhai Space Centre (VSSC), where the craft is being developed, told the paper that the spacecraft needed to be reassembled, which could cause a significant delay if more problems occur.
The RLV-TD is a two-stage scaled prototype of India’s Avatar spacecraft designed to drastically reduce the cost of launching payloads into orbit from US$5,000 per kilogram (2.2 lb) to US$500. RLV-TD is a winged technology demonstrator for testing flight and propulsion systems that will allow the completed Avatar to return to Earth for a controlled landing like a conventional aircraft.