Introduction
So, here we are. What will be the penultimate post in this series of posts, specifically examining the claim that German aircraft flew between Europe and Japan or Japanese-controlled territory via the Arctic. It was the mention of the Arctic route that caught my attention and started this series of posts, but that was just the opening of the Rabbit hole.
Unlike many aviation myths, this story cannot be dismissed out of hand. By 1944 Germany possessed several aircraft with extraordinary range, and there was a genuine strategic requirement to exchange personnel, intelligence, and technology with Japan.
The question is not whether such flights were technically possible. The question is whether they actually occurred.
The Strategic Problem
By 1944 Germany and Japan were separated by thousands of kilometres of hostile territory and ocean. The traditional maritime routes connecting the Axis powers had become increasingly dangerous. Allied naval and air superiority meant that many attempts to exchange personnel and strategic materials ended in disaster.
Submarines offered one solution, but they were slow and vulnerable. An aircraft capable of making the journey in a matter of hours rather than months would have been an attractive alternative. However, both the geography and politics presented major obstacles.
Since April 1941, Japan and the Soviet Union had been bound by the Soviet–Japanese Neutrality Pact. Although Germany was at war with the Soviet Union, Japan remained officially neutral until August 1945. Any German aircraft crossing Soviet territory risked creating a diplomatic crisis and potentially forcing the Soviet Union to take action against Japanese interests in the Far East.
As a result, any direct route from Europe to Japanese-controlled territory would either have to avoid Soviet airspace altogether or be conducted under circumstances of extraordinary secrecy. This diplomatic reality is often overlooked in discussions of the alleged flights.
Candidate Routes
For the purposes of this discussion, two commonly suggested departure points will be examined. But note there are a number of other starting points, these are very diverse with Berlin, Odessa, Kirkenes and probably some others. However for brevity and to give some indications of the distance, I’ll just go with two as follows.
| Departure Airfield. | Destination Airfield | Great Circle Distance |
| Banak (Finmark) | Saporo (Japan) | 6,500 Km |
| Banak (Finmark) | Harbin (Manchuria) | 5,700 Km |
| Mielec (Poland) | Saporo (Japan) | 8,200 Km |
| Mielec (Poland) | Harbin (Manchuria) | 7,150 Km |
Banak, Northern Norway
Located deep within the Arctic region, Banak was one of the Luftwaffe’s principal northern airfields. Aircraft operating from Banak already flew reconnaissance and maritime patrol missions into the Arctic Ocean.
A great-circle route from Banak to Sapporo in northern Japan measures approximately 6,500 Kilometers. A route from Banak to Harbin in Japanese-controlled Manchuria measures approximately 5,700 Kilometers. At first glance these distances appear achievable for Germany’s largest aircraft, the challenge lay in everything else.
Mielec, Occupied Poland
Mielec has frequently appeared in post-war accounts of alleged Germany-to-Manchuria flights. Unlike Banak, it offered a more direct route to East Asia and despite the post title – the route wasn’t trans polar. The great-circle distance from Mielec to Harbin is approximately 7,150 Kilometers, while Mielec to Sapporo is approximately 8,200 Kilometers.
The difficulty, however, is obvious. Any practical route from Mielec would either cross Soviet-controlled territory or require a diversion of thousands of Kilometers around it. With the political implications of such a flight being every bit as significant as the technical challenges.
Avoiding Russia
In order not to antagonise Russia, the Japanese were keen to ensure that any flights between Europe and Japan did not overfly the teritory of the USSR. Japan was vehemently oposed to any German actions that may have provoked the USSR, in order for the Germans to comply with this – they would actually have to fly around the USSR a distance of some 10,000 Kilometers.
Aircraft Capabilities
To understand whether such missions were feasible, we must examine the aircraft that have most often been associated with these claims.
The Focke-Wulf Fw-200 Condor
The Fw-200 had already demonstrated impressive long-range capability before the war. In August 1938 a specially prepared aircraft completed a non-stop flight from Berlin to New York. This achievement proved that German aviation technology was capable of transatlantic flight. However, wartime operations were very different from carefully planned record attempts.
A standard military Fw-200 typically possessed a practical range of approximately 3,500 to 4,500 Kilometers. Even with additional fuel tanks and a stripped-down configuration, estimates suggest a maximum range in the region of 6,000 to 7,000 Kilometers.
This placed Banak-to-Harbin or Banak-to-Sapporo flights at the very edge of the aircraft’s capabilities. There would have been little margin for adverse weather, navigational errors, headwinds, or reserve fuel requirements. While the aircraft might have been capable of attempting such a mission, it would have been a less than ideal choice. It would just simply not have the range and could not be configured to go around the USSR as was required.
The Junkers Ju-290 A-9
The Ju-290 was specifically designed for long-range transport and reconnaissance work, some versions were modified to carry significant additional fuel. Specifically the A-9 variant is often mentioned in discussions of Far Eastern operations because it combined substantial fuel capacity with useful payload capability.
Under favourable conditions, ranges approaching 6,000 Kilometers appear achievable, with some sources suggesting even greater distances for specially modified like the A-9 albeit while carrying reduced payloads.
Unlike the Fw-200, the Ju-290 could potentially transport personnel, documents, or strategic materials while still retaining the range necessary for an ultra-long-distance flight. This indeed makes it the most plausible candidate for any alleged Europe-to-Manchuria operation, with the long range A-9 version possibly having the necessary unrefueled range allowing it to go around the USSR.
It is therefore unsurprising that many post-war accounts focus on the Ju-290 rather than the Condor.
The Junkers Ju-390
The Ju-390 occupies a unique place in aviation history. Developed from the Ju-290, it was one of the largest aircraft produced by Germany during the war. Only a small number were completed, and documentation remains incomplete.
Some estimates suggest a maximum range between 8,000 and 9,000 Kilometers. If accurate, such figures would place all of the routes discussed here comfortably within its theoretical capabilities. Unfortunately, the Ju-390 is also surrounded by myths of its own, including claims of flights to the United States and other extraordinary missions.
The aircraft’s existence is well documented, but there is disagreement over the numbers built. There are literally arguments over whether there was one or two, where the aircraft were at certain times and what pilots were assigned to them. So it is fair to say that there are significant gaps in the operational history. The number completed, one or two depending on sources – probably wouldn’t allow for it’s use in this capacity.
The Arctic Challenge
Even if sufficient range could be achieved, distance was only one part of the problem. Flying over the Arctic in the 1940s was a formidable undertaking. Navigation became increasingly difficult at high latitudes. Magnetic compasses lost accuracy, radio-navigation aids were limited, and crews often relied upon celestial observations whenever weather permitted.
Weather itself presented another obstacle. Severe icing, storms, turbulence, and poor visibility could quickly turn a long-range flight into a catastrophe. Modern polar flights benefit from satellite navigation, real-time weather forecasting, and global communications. Luftwaffe crews had none of these advantages.
A successful flight would have required exceptional preparation and a considerable degree of luck.
The Missing Evidence
As if the above wasn’t enough to consider, we come to the requirement for proof or evidence of any kind. True to form this is where the story encounters its greatest difficulty. The only tangible evidence would seem to be that the possibility of these flights was mentioned during post war interrogations, no physical proof would seem to exist – just hearsay.
Despite decades of research by many people and the mention of these flights in a number of respected aviation publications, no conclusive evidence has emerged demonstrating that any of these flights actually took place.
Historians would expect to find at least some of the following:-
- Flight plans.
- Operational orders.
- Fuel allocation records.
- Aircraft preparation documentation.
- Crew reports.
- Maintenance records.
- Japanese arrival records.
- Diplomatic correspondence referring to successful flights.
To date, none of these have surfaced in a form that conclusively demonstrates a completed flight between anywhere in Europe and Japanese-controlled territory.
This absence is significant, under normal circumstances there would have been numerous documents. In short a mission involving one of Germany’s largest aircraft, a highly trained crew, large quantities of fuel, and strategic cargo would almost certainly have generated a substantial documentary trail.
Possibility Versus Proof
When viewed purely from a technical perspective, the routes and distances examined here appear achievable. A specially prepared Fw 200 might have reached the required distances under ideal circumstances, but it was far from the ideal choice. A Ju 290 A-9 represents a more credible candidate, there were three built potentially for this specific job.
A Ju 390 would have possessed the greatest theoretical capability of all, but there were only one or two of them at best and they were test and development airframes.
The Soviet–Japanese Neutrality Pact complicated route planning, Arctic navigation posed enormous challenges, and no surviving documentation has yet demonstrated that these missions were successfully flown.
The result is a story that remains suspended between possibility and proof, when things are weighed up – the balance seems to lie in the it didn’t happen camp.
Verdict
Could a German aircraft have flown from Banak to Sapporo, Tokyo or Harbin?
Possibly.
Could a specially prepared Ju 290 or Ju 390 have completed such a mission?
Theoretically, yes.
Is there convincing documentary evidence that such flights actually occurred?
At present, no.
The legend survives because the aircraft existed, the strategic need was real, and the distances involved were not beyond the limits of contemporary technology. What remains missing is any hard evidence that would transform a fascinating possibility into established history.