Question: What prefix was removed with government's tranistion to a Republic in 1950 from the fourth ranking airforce of the world, which includes No. 48 Squadron IAF assigned to Maintenance Command and participates in operations involving air, land and airdrop of troops, equipment, supplies, and support or augment special operations forces, when appropriate.
Related documents: [0]  [DOC] No. 48 Squadron is a unit of the Indian Air Force assigned to Maintenance Command. The Squadron participates in operations involving air, land and airdrop of troops, equipment, supplies, and support or augment special operations forces, when appropriate. [END] 
[1]  [DOC] The Indian Air Force (IAF; : "Bhāratīya Vāyu Senā") is the air arm of the Indian armed forces. Its complement of personnel and aircraft assets ranks fourth amongst the airforces of the world. Its primary mission is to secure Indian airspace and to conduct aerial warfare during armed conflict. It was officially established on 8 October 1932 as an auxiliary air force of the British Empire which honored India's aviation service during World War II with the prefix "Royal". After India gained independence from the United Kingdom in 1947, the name Royal Indian Air Force was kept and served in the name of Dominion of India. With the government's transition to a Republic in 1950, the prefix "Royal" was removed after only three years. [END] 
Answer: 
"Royal"
"Royal"