Junkers EF Project Designs
The EF Designator means "Entwicklungs-Flugzeug" (Development Aircraft). It was used at the Junkers Construction Office during the early stage of aircraft design. Later the "EF" Designs were handed over to the design Office and got the "Ju" Designator plus a numeric Designator issued by the RLM. During the late stage of WWII the "EF" Designator was still used for the design and prototyping Phase (EF126 and later). Some late EF Designs were later flown in Russia under EF Type Designators.
It is not known, when the EF Designator System was introduced. Günter Frost expects, that the EF was first used somewhere between 1923 and 1924. The EF140 seems to be the first EF number exclusively used by the OKB-1 in Podberesje in Russia without any previous use at the Junkers facility in Dessau. EF140 to EF151 were used exclusively in Russia, while the EF152 to EF160 were basicly developed in Russia but then transfered to VEB Flugzeugbau in Dresden. It seems, that the Dresden EF numbers ended with EF160
The EFo Designator was completely Independent from the EF Designators. It was used by the Junkers Research Department and means "Forschungsvorhaben" (Research Project). EFo numbers were known in a wide range, but only a few Projects refered to complete aircraft designs. Most Projects were focused on component and Equipment Trials.
EFo Aircraft Studies
- EFo008 - Jet Bomber, four jet engines under wing, high altitude bomber
- EFo009 - 10 Argus engines around the fuselage
- EFo010 - two jet engines under wing, record aircraft design
- EFo011 - Jet fighter, two jet engines under fuselage
- EFo012 - Jet Bomber, two jet engine pairs under wing (1939)
- EFo015 - Jet Bomber, similar to EFo008, modified nose section
- EFo017 - Jet fighter. two jet engines under wing
- EFo018 - Jet fighter, four engines under wing
- EFo019 - Jet Fighter, two jet engines integrated in wing
- EFo021 - passenger airliner (double deck) of 1938
- EFo043 - Aircraft Study
EF Designators
- EF-001 to 016 - nothing known
- EF-017 - single engined three seater, later Junkers A32 and Junkers K39
- EF-018 - nothing known
- EF-019 - nothing known
- EF-020 - nothing known
- EF-021 - nothing known
- EF-022 - nothing known
- EF-023 - nothing known
- EF-024 - single seat, Gnome-Rhone Jupiter VI, later Junkers A48,
- EF-025 - nothing known
- EF-026 - nothing known
- EF-027 - nothing known
- EF-028 - nothing known
- EF-029 - high altitude aircraft, later Junkers Ju49
- EF-030 - single engined passenger aircraft, later Junkers W41 (prob. also Junkers Ju52)
- EF-031 - twin seater Sport aircraft, later Junkers A50
- EF-032 - nothing known
- EF-033 - nothing known
- EF-034 - Luftlimousine, not built
- EF-035 - nothing known
- EF-036 - nothing known
- EF-037 - two engine Military aircraft
- EF-038 - nothing known
- EF-039 - nothing known
- EF-040 - nothing known
- EF-041 - nothing known
- EF-042 - nothing known
- EF-043 - Windtunnel Test Model
- EF-044 - nothing known
- EF-045 - nothing known
- EF-046 - nothing known
- EF-047 - nothing known
- EF-048 - twin engine Military aircraft, further development of Junkers K37
- EF-049 - twin engine passenger airliner, further development of the Junkers Ju52/1m
- EF-050 - VTOL aircraft as Fa269
- EF-051 - nothing known
- EF-052 - AFI Design Study of the Junkers K85
- EF-053 - early design of the later Junkers EF100
- EF-054 - nothing known
- EF-055 - design study for Junkers Ju287
- EF-056 - design study for Junkers Ju287
- EF-057 - design study for Junkers Ju287
- EF-058 - design study for Junkers Ju287
- EF-059 - design study for Junkers Ju88
- EF-060 - early design of the later EF127/EF128
- EF-061 - experimental high altitude aircraft
- EF-062 - early design studies of the EF128
- EF-063 - early design studies of the EF128
- EF-064 - nothing known
- EF-065 - probably early Junkers EF-082 design (?)
- EF-066 - design study for Junkers Ju287
- EF-067 - design study for Junkers Ju287
- EF-068 - design study for Junkers Ju287
- EF-069 - nothing known
- EF-070 - nothing known
- EF-071 - aerodynamical wing tip test model (at least 5 different models)
- EF-072 - early design study for EF77/ Junkers Ju252
- EF-073 - design study for Junkers Ju288
- EF-074 - nothing known
- EF-075 - nothing known
- EF-076 - nothing known
- EF-077 - design study for Junkers Ju252
- EF-078 - nothing known
- EF-079 - nothing known
- EF-080 - nothing known
- EF-081 - nothing known
- EF-082 - combat battle aircraft
- EF-083 - nothing known
- EF-084 - nothing known
- EF-085 - nothing known
- EF-086 - nothing known
- EF-087 - nothing known
- EF-088 - nothing known
- EF-089 - nothing known
- EF-090 - nothing known
- EF-091 - nothing known
- EF-092 - nothing known
- EF-093 - nothing known
- EF-094 - design designator for Junkers Ju322
- EF-095 - nothing known
- EF-096 - nothing known
- EF-097 - nothing known
- EF-098 - nothing known
- EF-099 - nothing known
- EF-100 - passenger airliner design
- EF-101 - Mistel aircraft design
- EF-102 - nothing known
- EF-103 - nothing known
- EF-104 - nothing known
- EF-105 - nothing known
- EF-106 - nothing known
- EF-107 - nothing known
- EF-108 - nothing known
- EF-109 - nothing known
- EF-110 - nothing known
- EF-111 - nothing known
- EF-112 - twin engine combat aircraft
- EF-113 - nothing known
- EF-114 - nothing known
- EF-115 - bomber design with 2 Jumo 211 in front and rear or 2 jets at rear fuselage
- EF-116 - W-Wing Jet Bomber Design (1943)
- EF-117 - nothing known
- EF-118 - nothing known
- EF-119 - nothing known
- EF-120 - nothing known
- EF-121 - nothing known
- EF-122 - four engine Ju287 design study, later Junkers Ju287
- EF-123 - nothing known
- EF-124 - nothing known
- EF-125 - two engine Ju287 design study, later Junkers EF140
- EF-126 - rocket interceptor
- EF-127 - rocket interceptor
- EF-128 - jet engine interceptor
- EF-129 - nothing known
- EF-130 - four engined long range jet bomber
- EF-131 (OKB-1) - six engine Jet bomber, further developement of the Junkers Ju287
- EF-132 - strategic bomber design, started in Dessau, later in Russia
- EF-133 - nothing known, probably not used
- EF-134 - nothing known, probably not used
- EF-135 - further developement of the EF130
- EF-136 - nothing known, probably not used
- EF-137 - Jet fighter design (according to CIA Report)
- EF-138 - nothing known, probably not used
- EF-139 - nothing known, probably not used
EF Numbers above 139 were used in Russia exclusively
(These aircraft and aircraft Projects are listed in the Junkers Post War Developments Directory)
- EF-140 (OKB-1) - two engine Jet bomber further development of EF131 in Russia
- EF-141 - nothing known, probably not used
- EF-142 - nothing known, probably not used
- EF-143 - nothing known, probably not used
- EF-144 - nothing known, probably not used
- EF-145 - probably a Junkers Ju88 or Ju388 testbed at OKB-1 (according to CIA Report)
- EF-146 - nothing known, probably not used
- EF-147 - nothing known, probably not used
- EF-148 - nothing known, probably not used
- EF-149 - nothing known, probably not used
- EF-150 (OKB-1) - two engine Jet bomber, further developement of the Junkers EF140 in Russia
- EF-151 - nothing known, probably not used
EF Numbers above 150 were basicly developed in Russia and built in Dresden
(These aircraft and aircraft Projects are listed in the Junkers Post War Developments Directory)
- EF-151 - Baade VIP Jet aircraft
- EF-152 - Baade 152, passenger airliner, built in 1955 in GDR
- EF-153 - Baade 153, passenger airliner, designed in 1955 in GDR
- EF-154 (I) - Baade 154, PTL passenger airliner, designed in 1955 in GDR
- EF-154 (II) - Baade 154 TL passenger Jet airliner, designed in 1959 in GDR
- EF-155 (I) - Baade 155 PTL passenger airliner, designed in 1956 in GDR
- EF-155 (II) - Baade 155 ZTL passenger airliner, designed in 1958 in GDR
- EF-156/157 - agricultural, ambulance, parachute, passenger aircraft, designed in 1960 in GDR
- EF-158 - not known
- EF-159 - not known
- EF-160 - Baade 160 passenger jet airliner, designed 1956 in GDR
- Sk160 - 178 - Jet Trainer Aircraft studies, designed 1956 in GDR
introduced Aug 2017
http://hugojunkers.bplaced.net/
contents last updated 18.08.2017