With the need for the replacements for the Alouette III becoming obvious due to a expanding role for the RSAFs rotary-wing assets, 3 Bell UH-1N(Bell 212s) and 17 UH-1H Huey helicopters were ordered. The arrived in 1977, with the first UH-1N arriving in Singapore in February followed by the first UH-1H in August that year. This allowed the ageing Alouettes to be phased out by early 1978. The new helicopters quickly settled into their new roles, with the red-and-white UH-1Ns taking over the SAR role while the UH-1Hs served in the utility role in support of Army operations with 120 Sqn, based at Changi. In 1980, these were joined by 20 refurbished UH-1Bs, which joined 123 Sqn and served as basic helicopter trainers for the RSAFs rotary wing pilots. The latter squadron had formed the previous year and until then, was sharing the UH-1Hs with 120 Sqn in the training role. While basic helicopter training was its main role, 123 Sqn also formed an Operations Flight in 1981 to add and operational function in addition to its training role. In September 1980, 120 Sqn moved from Changi to Kangaw Camp, at Sembawang to the north of Singapore to make way for the new international airport. 123 Sqn followed in June 1981 and with the Armys artillery units moving out of Kangaw Camp in 1983, the camp was transferred to the RSAF and renamed Sembawang Airbase. The UH-1Bs were retired in 1989, followed soon after by the UH-1Ns after ceding the training role to the  and the SAR role to the respectively. Since its initial UH-1 purchase the RSAF has followed up with several batches, including 6 Italian-built Agusta-Bell AB205 helicopters. With these further orders, the RSAFs inventory of UH-1H/AB 205s stand at approximately 30 aircraft, although a number are kept in storage.

The UH-1s have seen lots of operational use in their time with the RSAF. Since 1978, the RSAF has maintained a permanent detachment of UH-1Hs in Brunei, supporting the Singapore Armed Forces jungle training camp in Temburong. This detachment remains there to this day, with about 5 UH-1Hs on strength at any one time there. The UH-1s have also took part in the aftermath of the Hotel New World disaster in 1986, ferrying those injured in the collapse of a small hotel to local hospitals. In addition, the UH-1s have taken part in countless CASEVAC(CASualty EVACuation) operations, evacuating soldiers injured in training accidents as well as civilians requiring medical treatment from the busy waters off Singapore. However, the Hueys finest hour was undoubtedly what has come to be known as the "Cable Car Rescue". In 19 January 1983, the mast of the drilling ship Eniwetok hit the overhead cables of the cable car service linking the popular tourist island of Sentosa with Singapore, killing 7 people. 13 more people, stranded in 6 dangling cars, were rescued by the RSAF, being winched to safety in a daring late-night rescue carried out by a UH-1N of 120 Sqn. The picture of a UH-1B circling warily the morning after over the Eniwetoks mast, entangled in cables, has come to symbolise the accident.

Today the Huey soldiers on with the RSAF. Fulfilling a wide variety of roles, including troop transport, CASEVAC, heli-rappelling, underslung load and anti-terrorist operations, the Huey has served with distinction with the RSAF. A replacement would be due soon, though any replacement would find it difficult to match the flexibility and economy of this ubiquitous helicopter.