Zeppelin LZ 80

{{short description|Zeppelin LZ 80 / L 35 - Imperial German Army Airship}}

{{Infobox aircraft begin |name = LZ 80 (L 35) |image = |caption = |alt = }}{{Infobox aircraft type |type = R-class reconnaissance-bomber rigid airship |national origin = German Empire |manufacturer = Luftschiffbau Zeppelin |design group = |designer = Ludwig Dürr |builder = |first flight = 20 October 1916 |introduction = |introduced = |retired = Decommissioned in September 1918. |status = |primary user = Imperial German Army |more users = |produced = |number built =1 |program cost = |unit cost = |developed from = |variants with their own articles = |developed into = }}

The Imperial German Army Zeppelin LZ 80 (L-35) was a R-class World War I zeppelin.

==Operational history==

The airship took part in 13 reconnaissance missions around the North and Baltic Sea; three attacks on England dropping {{cvt|4284|kg}} of bombs. The designers tried to make LZ 80 (L-35) more efficient by removing one engine making the airship {{Convert|1750|kg|lbs}} lighter.{{sfn|Stephenson |2012|p=20}}

==Siemens torpedo glider testing==

File:SSW torpedo-glider No.7 showing the torpedo in Flight mode.png

{{Main|Siemens torpedo glider}}

The last test flight of the Siemens torpedo glider was performed on August 2, 1918. On this flight a {{Convert|1000|kg|lbs}} biplane glider was launched from Zeppelin LZ 80 (L 35).{{sfn|Reuter|2020|p=5}}{{sfn|Friedman|2011|p= }} The glider was released from {{Convert|1500|m|ft}} over the Havel river and worked as expected until its control wire that attached the glider to the Zeppelin snapped and the glider spun out of control.{{sfn|Reuter|2020|p=5}}

==Specifications (LZ 80 / Type R zeppelin)==

{{Aircraft specs

|ref=Zeppelin : rigid airships, 1893–1940 {{sfn|Brooks|1992|pp=95-99}}

|prime units?=met

|crew=17-19

|capacity={{cvt|32400|kg|0}} typical disposable load

|length m=198

|length note=

|dia m=23.9

|dia note=maximum

• Fineness ratio: 8.24

|volume m3=55200

|volume note=in 19 gas cells

|empty weight kg=31400

|empty weight lb=

|empty weight note=

|gross weight kg=32908

|gross weight note=

|max takeoff weight kg=

|max takeoff weight lb=

|max takeoff weight note=

|fuel capacity={{cvt|6250|kg|0}}

|lift kg=63800

|lift note=

|more general=

|eng1 number=5

|eng1 name=Maybach HS Lu

|eng1 type=6-cylinder water-cooled in-line piston engines

|eng1 hp=240

|eng1 note=

|prop blade number=4

|prop name=Lorenzen fixed-pitch propellers

|prop dia m=

|prop dia ft=

|prop dia in=

|prop dia note=

|max speed kmh=103

|max speed note=

|cruise speed kmh=81

|cruise speed note=

|never exceed speed kmh=

|never exceed speed mph=

|never exceed speed kts=

|never exceed speed note=

|range km=7400

|range note=at {{cvt|81|km/h|mph kn}}

|combat range km=

|combat range miles=

|combat range nmi=

|combat range note=

|ferry range km=

|ferry range miles=

|ferry range nmi=

|ferry range note=

|endurance=

|ceiling m=3900

|ceiling note=static

|g limits=

|roll rate=

|glide ratio=

|climb rate ms=10

|climb rate note=maximum permitted (r-class)

|time to altitude=

|fuel consumption kg/km=

|fuel consumption lb/mi=

|more performance=

|guns= machine-guns in hull-top positions and gondolas

|bombs=up to 60 bombs to a total of {{cvt|5000|kg|0}}

}}