The Bf-109F Friedrich is considered aerodynamically to be the high point of development of the Bf-109 series, in terms of harmony of airframe and engine and overall performance.  With the failure of the Bf-209 and Bf-309 projects intended to replace the Bf-109, the airframe continued in production with the Gustav and Kurfurst series, with more weight and power added for only minor performance increases other than top speed at altitude, and an increased service ceiling.  

Shortly after the introduction of the Bf-109E into service,  Messerschmitt proceeded to design a major improvement to the Bf 109. The new model was included structural and aerodynamic changes to take maximum advantage of a higher performance powerplant, the 1,350 horsepower DB 601E.  Inserting the radiators deeper in the wings reduced drag and improved lift. The engine cowling was streamlined with an enlarged spinner with the propeller blades widened and shortened, while the wingtips were rounded and shorter-span ailerons were introduced, and the tail plane bracing struts were removed. The V-21, V-22, V-23, and V-24 prototypes tested early versions of the DB 601E engine, the new wings, and other changes.

Armament was standardized on two fuselage-mounted 7.9mm machine guns and a 15mm or 20mm cannon firing through the propeller shaft, based on combat reports that the concentrated firepower of the fuselage guns was more effective than the converging bullet streams from the wing guns on the Bf-109E.

Without the heavy cannons in the wings, handling characteristics were greatly improved.  The wings were always the weak point of the Bf-109 design, and removing the guns allowed greater high-G maneuvering without fear of wing failure that had been found in the Bf-109E.  When it was introduced to combat, the Bf-109F demonstrated superiority to the new Spitfire V just being issued to RAF Fighter Command.

While Werner Molders advocated this new armament, Adolf Galland argued it was a retrograde step, that the average Luftwaffe pilot needed the increased weight of fire of the 20mm wing guns to give the margin of victory.  Galland was so adamant on this point that he continued to fly his Bf-109E-4/N even after being given a Bf-109F-0, and did not fully adopt the Friedrich until Messerschmitt provided him two Bf-109F-2/S one-off specials - one with 13mm fuselage weapons and one with internally-mounted 20mm wing guns - which he used through the second half of 1941 while he continued to command JG 26.

Due to delays in production of the 601E, delivery of the Bf 109F-0 and Bf-109F-1, began in November 1940 with the aircraft still powered by the DB 601N engine used in the Bf-109E-4 and E-7 and utilizing the MG-FF 20mm cannon.  Soon after their introduction, Luftwaffe units reported unexplained losses, following violent vibrations and loss of control.  Examination of wreckage revealed that removing the tail bracing struts without additionally strengthening the fuselage had caused the problem; this was remedied by fitting reinforcing plates on the fuselage. The Bf 109F-2, introduced in February 1941 differed from the F-1 with the introduction of the MG 151 15mm cannon.  In early 1942, the DB 601E was finally installed in the Bf-109F-3 and the Bf-109F-4.  The F-3 continued use of the 15mm MG 151l like the F-2, while the F-4 introduced a larger MG 151 20mm cannon, self-sealing fuel tanks, and better pilot armor.

The Bf-109F-4 was the ultimate Friedrich.; Weighing 6,880 pounds, it had a top speed of 390 m.p.h. at 20,000 feet, with a service ceiling of 39,400 feet.  The Bf-109F-4/R6, introduced at the insistence of Adolph Galland after he became General der Jagdflieger, carried a pair of MG 151s in underwing gondolas.  Handling was adversely affected and the R6 was limited to bomber interceptor roles.  The final version was the Bf-109F-4/Trop, modified for use in North Africa.

The Bf-109F began disappearing on the Channel Front with the introduction of the Focke-Wulf Fw-190A, while the aircraft continued in service on the Eastern Front as late as mid-1943, due to its superior dog-fighting capabilities, being replaced by the Bf-109G-2 there only when spares were no longer available.

ust over 2,000 Bf-109Fs were produced - 16% of the total Bf-109 production - before being replaced by the 109G.

While the Bf-109F arrived just too late to take part in the Battle of Britain, it was the main Luftwaffe fighter at the start of Operation Barbarossa. The superiority of the Bf-109F to everything used by the Soviets other than the Yak-1 allowed Luftwaffe pilots to run amazing scores during 1941 and 1942. 

On the Channel Front, the Bf-109F allowed the Luftwaffe to maintain air superiority over the RAF even with only two Jagdgeschwadern - JG 2 and JG 26 - committed to the battle.  In North Africa, the Bf-109F was superior to every RAF fighter it opposed, and only the increasing numerical superiority of the Allies in North Africa was able to eventually overcome this superiority.

The Star of Africa - Hans Joachim Marseille:

 Hans Joachim Marseille is considered the most amazing, unique, and lethal ace of the Second World War.  His score of 158 victories, all achieved against the RAF, is unmatched by any other Luftwaffe pilot.  With an average lethality ratio of just 15 shots per victory. Marseille was described by Adolf Galland thus: "He was the unrivaled virtuoso among the fighter pilots of World War Two."

 Initially, Marseille was a non-conformist in an organization that did not accept such behavior, and his introduction to combat with JG 52 under Johannes Steinhoff during the Battle of Britain was not a success, though on his third mission he shot down a Spitfire and by the end of the Battle Of Britain had seven victories; he was also shot down four times, while  his behavior on the ground got him in trouble, since he had such busy night life that on occasion he was too tired to be allowed to fly the next morning. His love of American Jazz music was an additional strike against him.  Following the Battle of Britain, he was returned to Germany, and there was serious thought given to getting rid of him.  Fortunately, by the Spring of 1941, the Luftwaffe was stretched by its involvement in the Mediterranean and North Africa, and young Leutnant Marseille found himself "exiled" to North Africa with an assignment to I Gruppe, Jagdgeschwader 27, the Luftwaffe unit assigned to the Afrika Korps for air defense.  There, the Geschwader Kommodore, Oberstleutnant Eduard "Edu" Neumann, gave Marseille the opportunity he needed.

With Neumann giving him the kind of support he needed, and with the lack of "social alternatives" in the desert,  Marseille began to analyze his combat activity, began a personal program to improve his abilities as a fighter pilot. 

 Marseille decided he would adapt his eyes to the powerful desert sun and dry desert atmosphere, and adapt his body to the desert conditions. He stopped wearing sun glasses, deliberately exposing his eyes to the desert sun, and replaced alcohol with milk. He discovered that in the intensely lit dry desert atmosphere, and aircraft could be detected from greater distances than over Europe; from this he determined that ambush and surprise were less practical over the desert than in the cloudy European sky.

He also worked to strengthen his abdominal and leg muscles to enhance his ability to sustain higher G-Forces for longer durations during dogfights than the average fighter pilot.   He also took every opportunity to perform breathtaking aerobatics. In addition to providing entertainment to his friends, these exercises also gave him outstanding control and confidence in performing extreme maneuvers.

 Finally, Marseille used his leftover ammunition to practice firing at ground objects; additionally, he became a master of  high-deflection shooting while in a sharp turn, which is the most difficult gunnery situation to control.

 Given the air combat conditions of North Africa, Marseille was able to fight alone with only a wingman. He claimed that when fighting alone in a short range dogfight, he could fire at anything he saw, while the attacked pilots were confused, leading them to hesitate and switch to a defensive position that further increased the lone attacker's chances. His preferred method of attack was to make high-angle deflection shots from short range while in a sharp turn.  He never used his gunsight, instead firing a very short burst at the passing target in the split second when its propeller disappeared behind his aircraft's nose. He calculated that with a short burst at this position, the rounds would hit the target's engine and cockpit.  He concluded that, over the desert, a fighter pilot can become "invisible" only by in extreme maneuvers at close range, and that the intensity of the maneuvering was more important than speed.

Marseille first demonstrated his new abilities on Sept. 24, 1941.  On a fighter sweep, he suddenly broke formation and flew off in a direction where no one else saw anything. When his fellow pilots caught up with him, he had already shot down a bomber. Later the same day, his formation of six met 16 Hurricanes.  As a junior pilot, Marseille and his wingman were ordered to provide cover to the other four, which attacked the Hurricanes.  After three Hurricanes were shot down, Marseille told his wingman to cover him and attacked a formation of four Hurricanes passing below. He dove, leveled at their altitude, and shot down two in a single burst while in a sharp turn. He then dove to gain airspeed then zoomed back up and shot down a third Hurricane.  The two formations then disengaged.  Marseille climbed to a higher altitude, then dove on retreating Hurricanes and shot down a fourth, his fifth victory of the day.  On his return to base, he told a friend, "I believe now I have got it."

 Marseille's most classic combat happened June 6, 1942, at noon. Flying an escort mission to a formation of Stukas, he spotted a formation of 16 P-40 Tomahawks.  He flew on with his mission for another 10 minutes, then turned and headed toward the Tomahawks, accompanied only by his wingman.  Climbing above the formation, he dove into them and hit his first victim from a distance of 150 feet.  As that one fell away, he pulled up, turned, and dove on his second victim, shooting it down also from a range of 150 feet. The others dove away but Marseille went after them, turning into his third victim and knocked it out in a dive.  Passing through the smoke of number three, he leveled off at low altitude then zoom-climbed onto the tail of number four. His cannon did not fire, so he shot this one down with his 7.7mm machine guns from a distance of 100 feet.  At the moment he hit number four, 15 seconds after hitting number three, the third victim hit the ground, an indication of Marseille's speed.  The 12 remaining Tomahawks were now at very low altitude, racing for home. He quickly closed distance, pulling alongside one Tomahawk before turning and hitting it in the engine and cockpit. He climbed again, selected a target and hit his sixth victim in a vertical dive.  Now short of fuel and ammunition, he and his wingman, who had witnessed the entire event, flew back to base.

 In 11 minutes of combat, Marseille had shot down six victims, five in the first six minutes.  Not a single round was fired at him. When they were debriefed, the surviving Tomahawk pilots reported they were attacked "by a numerically superior German formation which made one formation attack at them, shot down six of their friends, and disengaged".  During a post-war analysis of this dogfight, these pilots again testified the same. The RAF was reluctant to admit such a devastating defeat, and it was only when Ray Toliver reviewed the German records and interviewed Marseille's wingman, that the truth came out.

 On September 1, 1942, Marseille had his greatest day, shooting down 17 RAF fighters in three missions, including eight shot down in ten minutes on his second sortie of the day.  During the month of September, he shot down 54 enemy aircraft, and was promoted to Major after becoming the youngest Captain in the Luftwaffe that August.

 On Sept. 26, 1942, he scored his final victories, bringing his total to 158 confirmed air victories. He had received a new Bf-109G-1, but had refused to replace his Bf-109F-4.  His position was such that only a direct order by Feldmarschal Kesselring, put him in the cockpit of the new fighter.

 On September 30, 1942, Marseille flew his 382nd combat mission, a fighter sweep over the British lines, during which no contact was made.  As the formation turned back toward German lines, the cooling system of Marseille's fighter failed and the engine caught fire.  With his cockpit was full of smoke, Marseille flew the burning fighter three more minutes until he was over German territory. He rolled upside down and jettisoned the canopy, then released his harness and fell out of the cockpit.  He was hit in the chest by the horizontal stabilizer as the fighter immediately entered a dive.  Losing consciousness, he was unable to open his parachute and died on impact.

Posthumously, Marseille was awarded the Diamonds to the Knights Cross, in addition to the Oak Leaves and Swords he had been awarded previously.  On his grave, his squadron mates put his name and rank, and one word: "Undefeated."

 Zvezda has previously released the Bf-109F-2, which was hailed as the most accurate Friedrich kit in 1/48, though some felt it was "fiddly" with separate wingtips, additional internal detail in the wing, and the option of an open engine and gun compartment.

 This kit does the same for the Bf-109F-4 series, with both the early and late propellers, early and late oil coolers, and the R6 "Kannonenboote" 20mm gun tubs.  The tropical filter is also provided.

 For those interested, with all the "hoorah" about the recent Eduard Bf-109G-6 being "overscale" some undetermined amount, a comparison of this "gold standard" kit with that "horrible" kit reveals that the two are synonymous in fuselage dimensions from the nose to immediately aft of the trailing edge of the wing, with the Eduard kit being 1.5mm longer in the rear fuselage.  The Eduard wings are 2mm longer on each side than the Zvezda wing, and are exactly the same if one makes the 2mm "clip" of the outer wing that I recommended in a recent review at iModeler.com - since the information (complete with photos) about the similarity of the "gold standard" kit and the "horrible" kit was posted by Spencer Pollard, the "hoorah" seems to have declined to a whisper (thankfully). 

 The only real complaint that has been made about this kit from Zvezda is that the canopy parts don't exactly fit (Hitler even "ranted" about it on YouTube!), with the central section being a bit too long to fit between the windshield and the aft canopy; this is easily solved by sanding down the windshield, canopy and aft clear section a tiny bit at each end.

Unlike the recently-reviewed F-101, everything in the Zvezda Friedrich kit fits (other than the canopy mentioned above) and it is possible if you assemble with care to not use any seam filler anywhere.

 I decided to go for the open engine compartment option, since I have not done that previously with any of the 109s I have made.  I also decided to utilize the Lifelike Decals "Marseille Special" decal sheet to do one of Marseille's famous Bf-109F-4s.

 I started by gluing the respective vertical fin parts to their respective fuselage halves, so I could get a good fit at the joint by working it from inside and outside.

 I then painted all the parts for the cockpit and engine compartment, and set them aside.

 Assembly of the wing was easy.  Be sure to use the internal framing for the wing whether you leave the lower panel open or not, since this insures wing rigidity.  I attached the ailerons, wing flaps and radiator flaps, and set the wing subassembly aside to dry. 

 I assembled the cockpit and used Eduard photoetch seat belts.  When that was completed, I assembled the fuselage and then glued it to the wing sub-assembly.  That was followed by attaching the horizontal stabilizers and attaching the elevators in drooped position.

 I assembled the engine and the gun mounts.  I found that the guns were not going to fit under the cowling, so I cut them off at the appropriate point just at the cowling cover.  All this was set aside as I proceeded to paint the model.

 I painted the white nose and fuselage band, and painted the lower cowling white, following that with an application of yellow.  These areas were then masked off.                     

 I used Xtracrylix RLM78 Tropical Blue and RLM79 Sand Yellow for the camouflage.  The rudder was painted RLM Red24.

 The Lifelike Decals went on without problem under a coat of Microsol.  I used the whitewall decals from an old Hasegawa 109 sheet for the wheels.

 I assembled the engine and its accessories in position, then attached the forward nose cowling.  I attached the upper cowling guide, then attached the open cowling panels. I attached the landing gear and prop.

 I then gave the model an overall coat of Xtracyrlix Clear Flat varnish.  I finished by applying Tamiya "smoke" for the exhaust and oil stains, and "dinged" the model with my Prismacolor silver pencil.

The Zvezda kit does the best of any 1/48 Bf-109 kit to convey the essential delicateness of the Bf-109.  The model may be "fiddly," but if you follow the instructions the result will be a very satisfying model.  Recommended for anyone who has built detailed plastic airplane kits.

Thanks to HobbyLink Japan for the review kit.  Get yours at this link.

Thanks to Lifelike Decals for the review sheet.