Fieseler Fi 5
The Fieseler F 5, F 5 R was in the aircraft Fieseler Kassel designed, built and flown as a two- seat trainer, sports and touring aircraft. The flight characteristics and handling of the machines were outstanding. With this finished buildings in large numbers type of aircraft succeeded Gerhard Fieseler the breakthrough and the recognition as an entrepreneur in the German aviation industry.
History
Fieseler had recognized at the Fieseler F 4 project that one of a modern light aircraft was right with the requirements and was building on an airplane develop that did not exist previously in this class. It weighed an enormous pressure on Fieseler and his team. For the projects F 3 and F 4 much money had been spent. Revenue from the Fieseler aircraft could compensate for the time in any way. The former aircraft builder Edmund Rumpler and Carl Clemens Bücker also offered Gerhard Fieseler financial interests. But he wanted to remain independent and so he had no other choice than to achieve higher revenue through increased participation in air shows.
Construction
On September 1, 1932 Dipl. -Ing began. Kurt Arnold with his design team work. The Fieseler F 5 was a cantilever low- wing monoplane with two consecutive open seats. The wings had a strong outward tapered trapezoidal outline. Your trailing edge ran in a straight line, while the leading edge of the wings were pulled back. This created a positive sweep. The wings were made of wood construction, each had two I - beams and were planked up to the rear spar with plywood. To ensure the airfoil, the ribs were arranged in the front spar at a distance of 12.5 cm. On the wing trailing edge ailerons were attached to the outside, while inside were the takeoff and landing flaps. For road transport and space-saving assumption of F 5, the wings could be folded against the fuselage. The connection of the wing to the fuselage is integrated into the wing center section was carried out by means of conical bolts and quick release and was easy to handle. The outside of the wing center section were directly attached to the main spar cantilevered spring legs. This makes the chassis, which consisted only of two teardrop -shaped paneled struts with the wheels was outside the propeller jet and had a large enough gauge. To prevent overturning even with softened terrain and sudden heavy braking, the suspension was placed sufficiently far from the center of gravity. The chassis was built to the standards of the German Research Institute for Aviation ( DVL ) and was able to withstand the toughest conditions. Landing shocks were recorded by pressure washers and rubber recoil by oil shocks. The travel was plenty big sized 18 cm. At the rear, there was a spring-loaded spur.
The hull was welded from high quality steel pipes in trefoil. The motor stem was secured against the hull by a firewall, directly behind the bulkhead of the fuel tank was mounted. Behind this tank a passenger seat and behind a driver's seat were arranged. Both seats were comfortable and fitted pockets for cards and small luggage were wrong. Behind the driver's seat, there was the luggage compartment. The normal stick controller was mounted on ball bearings. The rudder operation was carried out by ropes and bumpers.
The elevator consisted of a trimmable from the driver's seat fin in wooden construction with plywood skin. This fin was sought after the hull bottom and clamped to the vertical stabilizer. All rudders had wood framework with fabric covering. The drive you had chosen the Hirth HM 60 engine with 60 hp.
Flight characteristics
In February 1933, the first pattern of Gerhard Fieseler was flown. He was enthusiastic about the flight characteristics of the F 5 Despite the weak engine. The controllability of the airplane on the ground was surprisingly good even in strong side and back wind and without the use of the wheel brakes. The plane took off and landed as a result of the great longitudinal stability very easily. The maneuverability was excellent by the strong trapezoidal shape of the wings and the contracted masses. The control pressures were low. Involuntary tailspin was excluded under normal conditions. Wanted spin was completed by merely letting go of the stick. A looping was possible from the horizontal flight at top speed without loss of height, all other aerobatic maneuvers were easy and without any effort. The machine was fully aerobatic. Fieseler decided to start the series stronger " Hirth HM 60 R engine " installed with 80 hp in the plane. After some changes and improvements were incorporated into a second pattern, he started with the new engine and was now satisfied. Even with the DVL- acceptance, there were only positive statements of acceptance pilots. Other pilots who were also able to fly this prototype confirmed the excellent flight characteristics of the machine. End of June 1933 was this aircraft as Fieseler F 5 R in series.
Launch
Meanwhile, it had become widely known in the circle of interested parties that the aircraft Fieseler Kassel had developed a machine that was far superior in terms of flight performance, flight characteristics, external shape and internal features comparable aircraft of that time. It took place within a very short time 25 orders of R 5 where R behaviourless the required down payment is made without security. So it was possible to meet the high financial requirements that were associated with the start of a really generous fabrication. The plant in Kassel- Ihringshausen was redesigned for mass production. Due to the massive structure of the workforce and the introduction of multi-layered work we managed to bring in 1933 eight aircraft at the start of the competition within seven weeks until the Germany flight in August. Due to the large demand, Gerhard Fieseler decided in the autumn of 1933 to a final installation of the plant in the former Deutsche Werke in Kassel - Bettenhausen and so you had come even closer to the airfield. Deliveries therefore increased significantly in 1934. A total of 51 machines were built and sold.
The aircraft Fieseler Kassel had 5 R managed with the Fieseler F breakthrough and was included in the " Reich Association of the German aviation industry ( RDLi ) ". The company was now using the proceeds from the aircraft and the income from Gerhard Fiese Jewellers aerobatics on solid financial feet.