It is the National Institute of Aeronautics and Space of that country.

-In 1963 aviation and space works began. They first designed a liquid-fuel rocket engine around 1974/78, known as Lapan RC-741.

“RC-741”

-With a single combustion chamber and using RFNA and Xylidine in a mixture of 3 to 1.

-The ignition was Hyperbolic and it delivered a thrust of 4,360 lbf.

From Appendix 10: Two rocket engines that will be added to the list to contrast with those that appear in the main text:

-RX-250-LPN

-Lapan SR