▁F ▁▁ ▁F & S ▁ ▁R anger ▁— ▁US ▁ ▁Fair d ies el ▁ ▁F aire y ▁ ▁F arc ot ▁ ▁Far ina ▁ ▁Far man ▁A viation ▁Works ▁— ▁France ▁ ▁F iat ▁— ▁Italy ▁ ▁Fire wall ▁For ward ▁A ero ▁Eng ines ▁ ▁Fl ader ▁ ▁F let cher ▁ ▁Ford ▁Motor ▁Company ▁— ▁US ▁ ▁Ford ▁of ▁Britain ▁— ▁UK ▁ ▁Franklin ▁Engine ▁Company ▁— ▁US ▁ ▁G ▁▁ ▁Gar rett ▁A i Res earch ▁— ▁US ▁ ▁Gar uff ▁ ▁Gas ▁Tur bine ▁Research ▁Est ab lish ment ▁— ▁India ▁ ▁G E ▁H onda ▁A ero ▁Eng ines ▁— ▁US ▁ ▁G E - A viation ▁— ▁US ▁ ▁General ▁— ▁US ▁ ▁General ▁A ircraft ▁Ltd . ▁ ▁General ▁Electric ▁ ▁General ▁Electric / R oll s - Ro y ce ▁ ▁General ▁Mot ors ▁— ▁US ▁ ▁Go eb el ▁ ▁Gian n ini ▁ ▁Ge iger ▁Engineering ▁ ▁G K N ▁A eros pace ▁— ▁UK ▁ ▁Gl ush enk ov ▁— ▁Russia / S ov iet ▁Union ▁ ▁G nome ▁et ▁Rh ône ▁— ▁France ▁ ▁le ▁Rh one ▁— ▁France ▁ ▁G ob ron - Br illi é ▁ ▁Great ▁Pla ins ▁A ircraft ▁Supp ly ▁Company ▁ ▁Green ▁— ▁UK ▁ ▁Gr é go ire ▁ ▁G riz od ub ov ▁ ▁Gu ib erson ▁— ▁US ▁ ▁Gy ro ▁Motor ▁Company ▁ ▁H ▁▁ ▁Hall - Sc ott ▁ ▁Hall - Sc ott ▁— ▁US ▁ ▁Hamilton