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Blohm and Voss Ha 139

Seaplane / Floatplane Cargo Aircraft

Blohm and Voss Ha 139

Seaplane / Floatplane Cargo Aircraft

OVERVIEW
SPECIFICATIONS
ARMAMENT
VARIANTS
HISTORY
IMAGES
Overview



The Blohm and Voss Ha 139 seaplane entry held limited value to a rearming Germany in the period prior to, and leading up to, World War 2.
National Flag Graphic
ORIGIN: Nazi Germany
YEAR: 1937
STATUS: Retired, Out-of-Service
MANUFACTURER(S): Blohm and Voss - Nazi Germany
PRODUCTION: 3
OPERATORS: Nazi Germany
National flag of Germany
GER
National flag of Nazi Germany
GER
Technical Specifications



Unless otherwise noted the presented statistics below pertain to the Blohm and Voss Ha 139 model. Common measurements, and their respective conversions, are shown when possible.
CREW: 5
POWER: 4 x Junkers Jumo 205C 6-cylinder diesel-fueled piston engines developing 600 horsepower each and driving three-bladed propeller units.
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Armament



Military Versions:
1 x 7.92mm MG15 machine gun at the nose.
1 x 7.92mm MG15 machine gun on fuselage roof.
1 x 7.92mm MG15 machine gun in left-beam position.
1 x 7.92mm MG15 machine gun in right-beam position.
Graphical image of an aircraft medium machine gun
Variants / Models



• Ha 139 - Base Series Designation.
• "Project 15" - Original project designation.
• Ha 139 V1 "Nordwind" - Original prototype model.
• Ha 139 V2 "Nordmeer" - Second prototype design.
• Ha 139 V3 "Nordstern" - Third prototype design.
• Ha 139B - V3 serving commercially with Deutsche Luft Hansa (DLH).
• Ha 139B/Umbau - Militarized Ha 139B with glazed nose and machine gun armament.
• Ha 139B/MS - Military mine-sweeping form modified from the existing Ha 139B.
• "Project 20" - Proposed reconnaissance-bomber form for the German Air Ministry; not developed.


History



Detailing the development and operational history of the Blohm and Voss Ha 139 Seaplane / Floatplane Cargo Aircraft.  Entry last updated on 7/1/2019. Authored by Staff Writer. Content ©www.MilitaryFactory.com.
Throughout the 1930s, the rebuilding German aero-industry took on new life and this allowed long-suffering concerns to ply their trade in what was once viewed as a German field of expertise. For long-time shipbuilder Blohm & Voss (BV), the time was right to branch out into aircraft-making (with a focus on metal-skinned types) and this led to the "Hamburger Flugzeugbau" concern being set up as an offshoot to the brand in 1933. From a business standpoint, this coincided rather conveniently with the rise of the Nazi Party which looked to rearm a beleaguered German military despite the restrictions set upon it by the Treaty of Versailles after World War 1 (1914-1918).

Blohm & Voss flew, for the first time, its "Ha 139" seaplane in October of 1933. This design utilized a well-streamlined fuselage with stepped cockpit, low-mounted inverted "gull wing" mainplanes (inboard anhedral, outboard dihedral sections being used), and a four-engined layout - each wing fitting two powerplants. To this was added twin floats so the aircraft could make its living on the water. The tail unit utilized a split vertical fin arrangement set upon a shared horizontal plane sat atop the fuselage and braced by struts.

At the time of its operation, the Ha 139 became one of the largest active seaplanes in the world showing the Blohm & Voss expertise with all things waterborne.

The program began with the "Project 15" design, this evolving in name to become the Ha 139. This then led to the Ha 139 V1 prototype carrying the "Norwind" name. Then came the Ha 139 V2 known as "Nordmeer". Finally, the Ha 139 V3 offering came online under the name of "Nordstern" and this entry differed in having a greater wingspan with larger surface area as well as revised engine installations. V3 entered service with Deutsche Luft Hansa for a short time as the "Ha 139B".

The "Project 20" design was a reconnaissance-bomber derivative proposed to the German Air Ministry before the war but garnered little interest.

The Ha 139 was not developed to any Luftwaffe military requirement of the time but rather a long-range, trans-Atlantic mail/cargo route and flew in this manner for carrier Deutsche Luft Hansa from the period of 1937 until 1939 - the official start of World War 2 (1939-1945). With the company, the aircraft was operated under the Ha 139B designation. However, with the arrival of the Second World War, everything changed and all manner of aircraft were thrown into Luftwaffe service in various roles - including the Ha 139. The same Ha 139B operating with Deutsche Luft Hansa was taken into service and reworked to a military specification under the "Ha 139/Umbau" designation with changes to include an all-glazed nose section for better viewing and a 7.92mm machine gun and further 7.92mm machine gun installations about the fuselage (one along the dorsal fuselage line and single mountings at each side rear section of the fuselage) for self-defense. This same aircraft was then reworked, again, for the minesweeping role - given a magnetic sensor for over-water operations.

The Ha 139B/Umbau, as finalized, carried a crew of four to five men and had a length of 65.9 feet, a span of 96.8 feet, and a height of 15.8 feet. Empty weight reached 23,000lb with an MTOW of 42,000lb. Power was from 4 x Junkers Jumo 205C 6-cylinder, opposed diesel-fueled piston engines, each used to drive three-bladed, all-metal variable-pitch propeller units and providing up to 600 horsepower at take-off. Performance specifications went on to include a maximum speed of 180 miles-per-hour, a cruising speed near 150 mph, a ferry range out to 2,860 miles, and a rate-of-climb of 560 feet-per-minute.

Before the end, just three Ha 139 aircraft were actually completed in either prototype, modified prototype, or finalized in-service forms. Their service to the Luftwaffe appears short-lived and the line was evolved with little success into a land-based form - the Ha 142 / Bv 142 (detailed elsewhere on this site), just four of these being produced after introduction in 1940.




Media







Our Data Modules allow for quick visual reference when comparing a single entry against contemporary designs. Areas covered include general ratings, speed assessments, and relative ranges based on distances between major cities.

Image of collection of graph types

Relative Maximum Speed
Hi: 200mph
Lo: 100mph
This entry's maximum listed speed (180mph).

Graph average of 150 miles-per-hour.
City-to-City Ranges
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  NYC
Graph showcases the Blohm and Voss Ha 139's operational range (on internal fuel) when compared to distances between major cities.
Aviation Era
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Pie graph section
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Pie graph section
Useful in showcasing the era cross-over of particular aircraft/aerospace designs.
Unit Production (3)
Comm. Market HI*: 44,000 units
Military Market HI**: 36,183 units
3
3

  * Commercial Market High belongs to Cessna 172.

  ** Military Market High belongs to Ilyushin Il-2.


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Supported Roles
A2A
Interception
UAV
Ground Attack
CAS
Training
ASW
Anti-Ship
AEW
MEDEVAC
EW
Maritime/Navy
SAR
Aerial Tanker
Utility/Transport
VIP
Passenger
Business
Recon
SPECOPS
X-Plane/Development
A2A=Air-to-Air; UAV=Unmanned; CAS=Close Support; ASW=Anti-Submarine; AEW=Airborne Early Warning; MEDEVAC=Medical Evac; EW=Electronic Warfare; SAR=Search-Rescue
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* Ribbons not necessarily indicative of actual historical campaign ribbons. Ribbons are clickable to their respective campaigns/operations.


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