RX (rocket family)
The RX rocket family ("Roket Eksperimental", ) is a series of solid-fuel rockets developed by the Indonesian National Institute of Aeronautics and Space (LAPAN). They are simply named by their diameter in millimeters; for example, the RX-250 has a diameter of . Individual boosters. This family is composed of: RX-250 was launched eight times from 1987 to 2007. RX-320 was launched twice in 2008 and once again in 2014. RX-420 flew just once in 2009; it is superseded by RX-450 which was launched on 13 May 2015 , the next booster version RX-550 is under construction; the larger ones  are only on the drawing board. Multi-stage rockets. Once the solid boosters are fully qualified, LAPAN plans to assemble several of them into multi-stage rockets called "Roket Pengorbit Satelit" or "RPS". Four staging configurations have been retained so far: Earlier plans for the Pengorbitan-1 and -2 orbital launch vehicles (RPS-420s) were based on the RX-420 engine which was superseded by the RX-450. , integration work is proceeding on variants 3a and 3b, whose engines have all been successfully flight-qualified. Since 2019, LAPAN's rocket division PUSTEKROKET has collaborated with AASPT and CGWIC of China in designing newer multiple  stage sounding rockets. The new rockets will be called RX-452 which combined of first stage, and of second stage. The design is based on TK-32 sounding rocket as well as RX-450. It is expected the newer design to be able to reach above , simulation showed the rocket is able to reach .