Name	Explanation	Examples
G	Transport, Gruzovoj	G-1, G-2
G	Designation for V.K.Gribovskij aircraft	G-10
G	Designation for P.I.Grokhovskij aircraft	G-61
GASN	Special Purpose Hydroplane, Gydro-Aeroplane Spetsialnogo Naznachenija	GASN
GAZ	State Aircraft Factory, Gosudarstvennyj AviaZavod, Used before the Great Patriotic War.	Lebed factory;
GAZ	Gorky Automotive Factory, Gorkovskij AvtoZavod
GDL	Gas-dynamics Laboratory, GazoDinamicheskaya Laboratorija
Giproorgstroi	State Institute of Building Design and Construction Organization, Gosudarstvennyj Institut Prooketirovanija i Organizatsii Stroitelstva (??)
GIRD	State Institute of Rocket Engines, Gosudarstvennyj Institut Roketnyh Dvigatelej
GKO	State Defence Commetee, Gosudarstvennyj Kokitet Oborony
Glavsevmorput	North Naval Ways Management, Glavk Severnogo Morskogo Puti
GLONASS	Global Navigation Satellite System
GPS	Global Positioning System
GROS	Grazhdanskoe Opytnoe Samoliotostroenie, Civil Experimental Aircraft Works	Mentioned on K-1 page
GST	Designation for license-built 'Catalina', GydroSamoliot Transportnyj, Cargo Hydroplane. Thanks to Roman Deniskin	GST Catalina
Gu	Initials of Gudkov Design Bureau;	Gu-1, Gu-82
GU	Glavnoe Upravlenie, Major Management
GUAP	Glavnoe Upravlenie Aviatsionnoj Promyshlennosti, Major Management of the Aviation Industry
GvIAP	Gvardejskij Iistrebitelnyj AviaPolk, Guardian (elite) Fighter Regiment
GVF	Grazhdanskij Vozdushnij Flot, Civil AirFleet, predecessor of the Aeroflot