Did you know…
Which fighter replaced the Arado Ar 65E?
Short answer
The Heinkel He 51: from 1935 it replaced the Arado Ar 65 as a front-line fighter. The He 51 had been designed to replace the Ar 65 and served alongside the somewhat later Arado Ar 68, which later replaced it in turn. The Ar 65 was downgraded to a trainer in 1935, and the Ar 65E and 65F passed to flying schools.

A fighter of the early Luftwaffe
The Arado Ar 65 was a single-seat biplane fighter conceived as the successor to the Ar 64. The first prototype, the Ar 65a, was built in 1931, followed by the Ar 65d. It equipped the Luftwaffe's fighter squadrons after Hitler came to power: it was its first front-line fighter.
The Heinkel He 51 takes over
From 1935, the Ar 65 was replaced by the Heinkel He 51. The He 51 had been designed precisely to replace the Ar 65, and it flew alongside the somewhat later Arado Ar 68. The He 51 itself was eventually replaced in turn by the Ar 68.
From fighter to trainer
In 1935, the Ar 65 was downgraded to the category of trainer aircraft. Production of the fighter version ceased in 1936. The Ar 65E and Ar 65F continued in service at flying schools even after the start of World War II.
More questions

Colin Cooke Photo (CC BY SA), vía commons Aviation history
What was the An-26's bubble window for?
The An-26's bulged windows were observation windows, part of its military equipment alongside folding canvas seats for paratroopers, an overhead hoist and… more…
.jpg)
Dmitry Terekhov from Odintsovo, Russian Federation (CC BY SA), vía commons Aviation history
At what altitude could the An-32 operate?
The An-32's service ceiling is 9,500 m (31,200 ft). More striking is its hot-and-high performance: it has outstanding takeoff characteristics at temperatures… more…

Saggittarius A (CC BY SA), vía commons Aviation history
Which Western aircraft was the An-40 compared to?
The Lockheed C-5 Galaxy. The An-124, called An-40 in the West during its development, broadly resembled the American strategic transport, though with… more…

Aviation history
What is the An-72's landing gear like?
Four independent single-wheel main legs that retract inward into sizeable fairings. Combined with high-flotation tyres, that sturdy gear lets the aircraft… more…
.jpg)
Aviation history
How many float-equipped Ar 66s were built?
Ten: ten production Ar 66B floatplanes were built, in addition to the Ar 66b prototype, the program's second prototype, completed as a floatplane. The main… more…

Saiga20K (CC BY SA), vía commons Aviation history
How was the KT flying tank meant to land?
By gliding: the tank would reach the battlefield, shed its wings, and be ready to fight within minutes. The A-40 was the Soviet attempt to have a tank glide… more…