{{short description|WWI German fighter aircraft}} <!-- This article is a part of Wikipedia:WikiProject Aircraft. Please see Wikipedia:WikiProject Aircraft/page content for recommended layout. --> {{Infobox aircraft | name = NFW E.I | logo = | logo_size = | image = | alt = | caption = | long_caption = | other_names = | aircraft_type = Fighter | aim = | outcome = | related = | national_origin = | manufacturer = National Flugzeug-Werk GmbH Johannisthal (NFW) | design_group = | designer = | builder = | issuer = | status = | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 1 | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = | first_flight = 1917 | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}

The '''NFW E.I''' was a prototype fighter aircraft built in Germany during World War I.

==Design== The E.I was an all-wood single-seat monoplane powered by an Oberursel U.0 rotary engine. The wing had two spars between which the pilot's seat was located, but also a plywood trim. One prototype was built and flown in 1917, but the type did not enter production.

==Specifications== {{Aircraft specs |ref=,<ref>{{Cite web|url=http://airwar.ru/enc/fww1/nfwe1.html|title=NFW E.i}}</ref> German Aircraft of the First World War<ref name=Gray>{{cite book |last1=Gray |first1=Peter |last2=Thetford |first2=Owen |title=German Aircraft of the First World War |url=https://archive.org/details/germanaircraftfi00thet |url-access=limited |year=1970 |publisher=Putnam |location=London |isbn=0-370-00103-6 |edition=2nd |page=[https://archive.org/details/germanaircraftfi00thet/page/n264 489]}}</ref> |prime units?=met <!-- General characteristics --> |crew=1 |length m=6.5 |span m=10 |height m= |wing area sqm=15.72 |aspect ratio=<!-- sailplanes --> |airfoil= |empty weight kg=428 |gross weight kg=620 |max takeoff weight kg= |fuel capacity= |more general= <!-- Powerplant --> |eng1 number=1 |eng1 name=Oberursel U.0 |eng1 type= |eng1 hp=80

|prop blade number=<!-- propeller aircraft --> |prop name= |prop dia m=<!-- propeller aircraft --> |prop dia ft=<!-- propeller aircraft --> |prop dia in=<!-- propeller aircraft --> |prop dia note= <!-- Performance --> |max speed kmh=156 |cruise speed kmh=132 |stall speed kmh= |never exceed speed kmh= |range km= |combat range km= |ferry range km= |endurance=<!-- if range unknown --> |ceiling m= |g limits=<!-- aerobatic --> |roll rate=<!-- aerobatic --> |climb rate ms= |time to altitude={{cvt|1300|m}} in 6 minutes |wing loading kg/m2= |fuel consumption kg/km= |power/mass=

|more performance= <!-- Armament --> |guns=1-2 × machine guns }}

==See also== {{aircontent |related= |similar aircraft= |lists= *List of military aircraft of Germany |see also= }}

==References== {{reflist}}

==Further reading== *{{cite book |last1=Herris |first1=Jack |title=German Aircraft of Minor Manufacturers in WWI: A Centennial Perspective on Great War Airplanes |date=2020 |publisher=Aeronaut Books |location=n.p. |isbn=978-1-935881-86-5|volume=2: Krieger to Union|series=Great War Aviation Centennial Series (50)}}

{{Idflieg E-class designations}}

E.I Category:1910s German fighter aircraft Category:Single-engined tractor aircraft Category:Mid-wing aircraft Category:Aircraft first flown in 1917 Category:Rotary-engined aircraft