Editing Heinkel He 112 (section)

===Production models===
In order to show off the He 112, V9 spent much of the later half of 1937 being flown by pilots from all over the world. It was also sent around Europe for tours and air shows. The effort was a success and orders quickly started coming in. However, a variety of problems meant few of these were ever delivered.

The first order was from the [[Imperial Japanese Navy]], which had a requirement for a fast-climbing interceptor to deal with [[Tupolev SB]] bombers over China. After seeing V9 in flight, it quickly placed an order for 24 112Bs, with an option for 48 more.{{sfn|''Air International''|1989b|p=312}} The first four were shipped in December 1937, another eight in the spring, and promises for the rest to arrive in May. Before delivery, the ''Luftwaffe'' unexpectedly took over 12 of the aircraft to bolster its forces during the [[Sudetenland Crisis]].{{sfn|''Air International''|1989b|p=315}}  The aircraft were then returned to Heinkel in November, but the Japanese, who were unhappy with the high maintenance workload and lower manoeuvrability compared with fighters like the [[Mitsubishi A5M]], refused to accept them this late and Heinkel was left holding the aircraft.{{sfn|''Air International''|1989b|p=316}}

In November 1937, an [[Austria]]n delegation came to see the aircraft, led by ''Generaloberst'' Alexander Löhr, Command-in-Chief of the ''Luftstreitkräfte'' (Austrian Air Force). Test pilot Hans Schalk flew both the Bf 109 and the He 112V9 back to back. Although he felt that both models performed the same, the Heinkel had more balanced steering pressures and better equipment possibilities. They placed an order on 20 December for 42 He 112Bs.{{sfn|''Air International''|1989b|p=312}} Pending the license for the [[MG FF cannon]], these aircraft would remove the cannon and add six THM 10/I bomb shackles which carried small 10&nbsp;kg (22&nbsp;lb) anti-personnel bombs. The order was later reduced to 36 examples due to a lack of funds (the He 112B cost {{Reichsmark|163,278|link=yes}}), but the aircraft were never delivered due to the annexation of Austria in the March 1938 [[Anschluss]].{{sfn|''Air International''|1989b|p=312}}

Spain was so impressed with the He 112's performance during evaluation in the civil war that the Spanish Air Force purchased the 12 aircraft in early 1938, and later increased the order by another six (some sources say five). Of the first 12, two were shipped in November, another six in January, and the rest in April.

In April, it looked like [[Kingdom of Yugoslavia|Yugoslavia]] would be the next user of the He 112. It placed an order for 30 aircraft but later cancelled the order and decided to produce other designs under license.

[[Finland]] appeared to be another potential customer. From January–March 1938, the famous Finnish pilot [[Gustaf Magnusson|Gustaf Erik Magnusson]] travelled to Germany to gain experience in new tactics. He had been on similar tours in [[France]] in the past and was interested to see how the Germans were training their pilots. On a visit to the Heinkel plant in Marienehe, he flew the He 112 and reported it to be the best aircraft he had flown. In May, Heinkel sent the first of the He 112 B-1s to Finland to join an air show. It remained for the next week and was flown by a number of pilots, including Magnusson, who had since returned to Finland. Although all of the pilots liked the aircraft, the cost was so high that the [[Finnish Air Force|''Suomen Ilmavoimat'']] (Finnish Air Force) decided to stick with the much less expensive [[Fokker D.XXI]].

A similar setback would accompany sales efforts targeting the [[Dutch Air Force]], which was looking to purchase 36 fighters to form two new squadrons. A He 112 B-1 arrived for testing on 12 July and quickly proved to be the best aircraft in the competition. Nevertheless, it decided to purchase the locally built (and rather outdated) [[Koolhoven F.K.58]] instead. In the end, the F.K.58s were never delivered because the factory was bombed on 10 May 1940.

Fortunes would seem to be reversed with [[Hungary]]. In June 1938, three pilots of the ''Magyar Királyi Honvéd Légierö'' (Royal Hungarian Home Defense Air Force or MKHL) were sent to Heinkel to study V9. They were impressed with what they saw, and on 7 September, an order was placed for 36 aircraft, as well as an offer to license the design for local construction. Through a variety of political mishaps, only three aircraft were ever delivered and licensed production never happened.

The final and perhaps most successful customer for the He 112B was [[Romania]]. The ''Forţã Aeronauticã Regalã Românã'' (Royal Romanian Air Force) ordered 24 aircraft in April 1939 and increased the order to 30 on 18 August. Deliveries started in June, with the last being delivered on 30 September.

By this point, the war had broken out and with better models on the market – including Heinkel's own [[Heinkel He 100|He 100]] – no one else was interested in purchasing the design. The production line was closed after a total of only 98 aircraft, 85 of those being the B series models.