The I.Ae.24 Calquin (a Mapudungun word which means "Royal Eagle") was a tactical bomber designed and built by the Instituto Aerotécnico at Córdoba, in Argentina in the immediate post-World War II era.

Patterned after the successful de Havilland Mosquito, the Calquín had a wooden structure similar to the FMA AeMB.2, and was the first twin-engined aircraft designed and built in Argentina.

24 was also intended to be equipped with Rolls-Royce Merlins but an adequate supply of the powerplants was not possible, consequently Pratt & Whitney R-1830-G "Twin Wasp" radials of 1,050 hp (782.5 kW) were substituted.

Performance estimates of a Merlin-powered variant would have made it comparable to the Mosquito but the R-1830-powered prototype was able to achieve only 273 mph (440 km/h), making the aircraft unstable and prone to stalling.

[citation needed] Despite the lower performance obtained in testing, the I.Ae.24 Calquin was able to undertake an attack and light bombing role, replacing the Northrop A-17 in the Argentine Air Force inventory.