# Latham 43

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{{Infobox aircraft
| name                = Latham 42 and 43
| logo                = 
| logo_size           = 
| image               = Latham 43 HB3 MDLot zoln.jpg
| alt                 = 
| caption             = 
| long_caption        = 
| other_names         = 
| aircraft_type       = Flying boat bomber
| aim                 = 
| outcome             = 
| related             = 
| national_origin     = France
| manufacturer        = [Latham](/source/Soci%C3%A9t%C3%A9_Latham)
| design_group        = 
| designer            = 
| builder             = 
| issuer              = 
| status              = 
| owners              = 
| primary_user        = [Aéronavale](/source/A%C3%A9ronavale)
| more_users          = 
| service             = 
| major_applications  = 
| proposals           = 
| prototypes          = 
| number_built        = 28
| construction_number = 
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| military_serial     = 
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| requirement         = 
| aircraft_carried    = 
| flights             = 
| total_hours         = 
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| construction_date   = 
| introduction        = 
| retired             = 
| first_flight        = 1924
| initiated           = 
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| developed_from      = 
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}}

The '''Latham 43''' was a flying boat bomber built in France in the 1920s for service with the French Navy. It was a conventional design for its day - a two-bay biplane with unstaggered wings, and engines mounted tractor-fashion on struts in the interplane gap. The pilot sat in an open cockpit, with a gunner in an open bow position, and another in an open position amidships.

Two examples, designated '''Latham 42''' powered by liquid-cooled Vee engines were evaluated by the navy in 1924, leading to a contract for 18 aircraft powered by air-cooled radial engines instead. Designated '''Latham 43''' by the manufacturer and '''HB.3''' in naval service (for ''Hydravion de bombardement'' - "Seaplane-bomber", 3 seats), they remained in service between 1926 and 1929.

Eight other machines with the original liquid-cooled engine were sold to Poland.

==Variants==
* prototypes with [Lorraine 12D](/source/Lorraine_12D)a engines (2 built)
* production version for France with [Gnome et Rhône 9A](/source/Gnome_et_Rh%C3%B4ne_9A)a engines (18 built)
* production version for Poland with Lorraine engines (8 built)

==Operators==
;{{FRA}}
*''[Aéronavale](/source/A%C3%A9ronavale)''
**[Escadrille 4R1](/source/Escadrille_4R1)
**[Escadrille 5R1](/source/Escadrille_5R1)
;{{POL}}
*[Polish Naval Aviation](/source/Polish_Air_Force)
**''[Morski Dywizjon Lotniczy](/source/Naval_Air_Squadron)'' based at [Puck](/source/Puck%2C_Poland)

==Specifications (French production version) ==
{{Aircraft specs
|prime units? = met
|crew=Three
|length m=15.60
|length ft=61
|length in=2
|span m=22.50
|span ft=73
|span in=10
|height m=5.40
|height ft=17
|height in=9
|wing area sqm=125
|wing area sqft=1,345
|empty weight kg=3,460
|empty weight lb=7,610
|gross weight kg=5,390
|gross weight lb=11,860
|eng1 number=2
|eng1 name=[Gnome et Rhône 9A](/source/Gnome_et_Rh%C3%B4ne_9A)a
|eng1 kw=<!-- prop engines -->280
|eng1 hp=<!-- prop engines -->380
|max speed kmh=160
|max speed mph=100
|range km=800
|range miles=500
|ceiling m=4,600
|ceiling ft=15,100
|armament = *1 × trainable .303 machine gun in open position in bow
*1 × trainable .303 machine gun in open position amidships
*400 kg (880 lb) of bombs
}}

==See also==
{{aircontent
<!-- include as many lines are appropriate. additional lines/entries with carriage return. -->
|see also=
|related=<!-- related developments -->
|similar aircraft=<!-- similar or comparable aircraft -->
|lists=<!-- related lists -->
* [List of Interwar military aircraft](/source/List_of_Interwar_military_aircraft)
}}

==References==
{{Reflist}}

==Bibliography==
*{{cite book |last1=Nelcarz|first1=Bartolomiej|last2=Peczkowski|first2=Robert|name-list-style=amp |title=White Eagles: The Aircraft, Men and Operations of the Polish Air Force 1918–1939|location=Ottringham, UK |publisher=Hikoki Publications |year=2001|isbn=1-902109-73-2}}
*{{cite journal |last1=Passingham|first1=Malcolm|title=Latham's 'Boats: Pictorial History of the Designs of Jean Latham |journal=Air Enthusiast |date=November–December 1999|issue=84|pages=22–27 |issn=0143-5450}}

==Further reading==
* {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London |pages=568 }}
* {{cite book |title=World Aircraft Information Files |publisher=Bright Star Publishing|location=London |pages=File 900 Sheet 2 }}

==External links==
{{Commons category}}
* [http://www.aviafrance.com/2453.htm aviafrance.com]

{{Latham aircraft}}

Category:Latham aircraft
Category:1920s French bomber aircraft
Category:Flying boats
Category:Biplanes
Category:Twin piston-engined tractor aircraft
Category:Aircraft first flown in 1924

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Adapted from the Wikipedia article [Latham 43](https://en.wikipedia.org/wiki/Latham_43) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Latham_43?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.
