# Hartmann Grasser

Hartmann Grasser (23 August 1914 – 2 June 1986) was a World War II German fighter ace. He was credited with shooting down 103 Allied aircraft while flying 700 missions on the Western Front, Eastern Front, and in North Africa. He was also a recipient of the Knight's Cross of the Iron Cross with Oak Leaves.

## Early life and career

Grasser was born on 23 August 1914 in Graz, Steiermark, Austria. After he received his Abitur, he started studying medicine and became a member of the Austrian Nazis. Following the failed coup attempt in the July Putsch, Grasser fled to Germany. On 1 April 1936, Grasser then joined the Luftwaffe with the rank of Fahnenjunker (cadet). Following flight training, he was posted to I. Gruppe (1st group) of Zerstörergeschwader 52 (ZG 52—52nd Destroyer Wing) where he served with 3. Staffel (3rd squadron) of ZG 52.

## World War II

World War II in Europe began on Friday 1 September 1939 when German forces invaded Poland. At the time ZG 52 was commanded by Hauptmann Wilhelm Lessmann and was based at Biblis where it was tasked with protecting Germany's western border in the Saar region during the "Phoney War". On 16 September, Grasser shot down a tethered balloon. The following day, he was awarded the Iron Cross second Class (Eisernes Kreuz zweiter Klasse). A week later, on 24 September 1939, his Messerschmitt Bf 109 109 D-1 was damaged in combat with a French Morane-Saulnier M.S.406, resulting in a forced landing at Bingen. That day, I. Gruppe of ZG 52 was also renamed and became the Jagdgruppe 152 (JGr. 152—152nd Fighter Group). On 6 January 1940, JGr. 152 was ordered to Graz where it was reequipped with the Messerschmitt Bf 110 heavy fighter and was renamed, again becoming the I. Gruppe of ZG 52. This unit was then renamed and became the II. Gruppe of Zerstörergeschwader 2 (ZG 2—2nd Destroyer Wing). In consequence, Grasser became a pilot of 6. Staffel. Flying with this squadron, he participated in the Battle of France and Battle of England and claimed six aerial victories. During these campaigns, Grasser was promoted to Oberleutnant (first lieutenant) on 1 June 1940 and received the Iron Cross first Class (Eisernes Kreuz erster Klasse) on 7 July.

### With Jagdgeschwader 51

In October 1940, Grasser was transferred to Jagdgeschwader 51 (JG 51—51st Fighter Wing). There, he was assigned to the Geschwaderstab (headquarters unit) headed by Oberstleutnant Werner Mölders. Prior to his posting to JG 51, Grasser had been destined to become a night fighter pilot which was not what he wanted to do. Additionally, he helped in the formation of the Z-Staffel (Z—Zerstörer or destroyer) of Jagdgeschwader 77 (JG 77—77th Fighter Wing) which later became part of Jagdgeschwader 5 (JG 5—5th Fighter Wing). Grasser also served as a test pilot, flying the Bf 109 T, the aircraft carrier variant, which were to be produced at Fieseler in Kassel. His acquaintance, Oberleutnant Hans Kolbow, introduced him to Mölders who arranged the transfer to JG 51 instead.
Grasser claimed his first aerial victory flying with JG 51 on 1 December 1940 when he shot down a Royal Air Force (RAF) Hawker Hurricane fighter near Ashford.

### On the Eastern Front

In June 1941, JG 51 and the majority of the Luftwaffe were transferred to the Eastern Front in preparation for Operation Barbarossa, the invasion of the Soviet Union. On 16 July 1941, Kolbow, the Staffelkapitän of 5. Staffel was killed in action. He was replaced by Leutnant Hans-Joachim Steffens who was also killed in action shortly after. On 1 August, command of 5. Staffel was then handed to Grasser. The Staffel was a squadron of II. Gruppe, at the time commanded by Hauptmann Hubertus von Bonin. On 11 October, the Gruppe was briefly detached from the Geschwaderstab of JG 51 and ordered east to Oryol. There, the Gruppe was subordinated to Gefechtsverband Schönborn (Detachment Schönborn), named after the commander of Sturzkampfgeschwader 77 (StG 77—77th Diver Bomber Wing), Major Clemens Graf von Schönborn-Wiesentheid. On 24 January 1942, Grasser attacked and shot down an Ilyushin DB-3 bomber. However, his Bf 109 F-2 (Werknummer 9704—factory number) was also hit by the aerial gunner of the DB-3 bomber resulting in a forced landing in no man's land. Grasser, who was wounded in the encounter, was rescued by the German infantry.
In May 1942, II. Gruppe was based at Bryansk but periodically also operated from airfields at Oryol and Dugino. On 2 July, the 9th Army launched Operation Seydlitz as part of the Battles of Rzhev. Defending against this operation, the Soviet Air Forces (VVS—Voyenno-Vozdushnye Sily) attacked the Luftwaffe airfield at Bryansk on 5 July. II. Gruppe of JG 51 was scrambled and claimed 46 Soviet aircraft shot down for the loss of Bf 109s damaged. That day, Grasser was claimed eight aerial victories, making him an "ace-in-a-day".

### North Africa

II. Gruppe had been withdrawn from the Eastern Front in early October 1942 and sent to Jesau in East Prussia, present day Yushny, Bagrationovsky District, for conversion to the Focke-Wulf Fw 190. Conversion training began on 7 October and on 4 November, the unit received the order to convert back to the Bf 109 and to transfer to the Mediterranean theatre. Via various stopovers, II. Gruppe moved to Sidi Ahmed airfield, arriving on 14 November. There, the unit was subordinated to Fliegerführer Tunis (Flying Leader Tunis). On 28 March 1943, Grasser bailed out of his Bf 109 G-4 trop (Werknummer 15040—factory number) near Djemmal south of Sousse.
On 6 June, Grasser was transferred to the staff of commanding general of the 4. Jagd-Division (4th Fighter Division). Command of II. Gruppe was then given to Oberleutnant Karl Rammelt who had led 4. Staffel. On 31 August, Grasser was awarded the Knight's Cross of the Iron Cross with Oak Leaves (Ritterkreuz des Eisernen Kreuzes mit Eichenlaub). He was the 288th member of the German armed forces to be so honored. The presentation was made by Adolf Hitler at the Wolf's Lair, Hitler's headquarters in Rastenburg on 22 September 1943. Three other Luftwaffe officers were presented with awards that day by Hitler, Hauptmann Günther Rall and Hauptmann Walter Nowotny were awarded the Swords to their Knight's Cross with Oak Leaves, and Hauptmann Heinrich Prinz zu Sayn-Wittgenstein also received the Knight's Cross with Oak Leaves. Grasser was promoted to Major on 1 December 1943.
On 28 April 1944, Grasser succeeded Hauptmann Friedrich Eberle as commander of III. Gruppe of Jagdgeschwader 1 (JG 1—1st Fighter Wing) which was based at Quedlinburg and fighting in Defense of the Reich. On 3 June, Grasser transferred command of III. Gruppe to Hauptmann Karl-Heinz Weber who had previously commanded 7. Staffel of JG 1 on the Eastern Front. On 15 October, Grasser took command of II. Gruppe of Jagdgeschwader 110 (JG 110—110th Fighter Wing).

## Later life

In May 1945, Grasser was taken prisoner of war by the United States Army. In 1946, he was transferred to the Soviet Union and was released in 1949. Following his return to Germany, he relocated to India where he became a civilian flight instructor. In 1950, he moved to Syria to work as a military advisor to the Syrian Air Force in Damascus. After his return to Germany, he settled with his wife and two sons in Cologne. There, he owned and operated a sheet metal factory. Grasser died on 2 June 1986 in Cologne and was interred in his hometown Graz.

## Summary of career
### Aerial victory claims

According to US historian David T. Zabecki, Grasser was credited with 103 aerial victories. Mathews and Foreman, authors of Luftwaffe Aces — Biographies and Victory Claims, researched the German Federal Archives and found records for more than 96 aerial victory claims, plus six further unconfirmed claims. This figure includes 83 aerial victories on the Eastern Front and over 13 on the Western Front, including one four-engined bomber.
Victory claims were logged to a map-reference (PQ = Planquadrat), for example "PQ 47524". The Luftwaffe grid map (Jägermeldenetz) covered all of Europe, western Russia and North Africa and was composed of rectangles measuring 15 minutes of latitude by 30 minutes of longitude, an area of about 360 square miles (930 km$^2$). These sectors were then subdivided into 36 smaller units to give a location area 3 km × 4 km (1.9 mi × 2.5 mi) in size.
Chronicle of aerial victories :
| This and the ♠ (Ace of spades) indicates those aerial victories which made Grasser an "ace-in-a-day", a term which designates a fighter pilot who has shot down five or more airplanes in a single day.  This and the – (dash) indicates unconfirmed aerial victory claims for which Grasser did not receive credit.  This and the ! (exclamation mark) indicates those aerial victories listed by Forsyth or by Prien, Stemmer, Rodeike and Bock.  This and the # (hash mark) indicates those aerial victories listed by Mathews and Foreman.  This and the ? (question mark) indicates information discrepancies listed by Prien, Stemmer, Rodeike, Bock, Mathews and Foreman. ||||||||||||
| Claim! | Claim# | Date | Time | Type | Location | Claim! | Claim# | Date | Time | Type | Location |
| – 3. Staffel of Jagdgruppe 152 – "Phoney War" — 1 September 1939 – 9 May 1940 ||||||||||||
| 1 | | 16 September 1939 | — | tethered balloon | | | 1 | 24 September 1939 | — | Curtiss | near Hornbach |
| According to Mathews and Foreman, aerial victories 2 to 5 are not documented in the German Federal Archives. ||||||||||||
| – Stab of Jagdgeschwader 51 – At the Channel and over England — 26 June 1940 – 26 July 1941 ||||||||||||
| 7 | 6 | 1 December 1940 | 15:16 | Hurricane | Ashford | — | — | 16 April 1941 | 18:42 | Spitfire | Berck-sur-Mer |
| – Stab of Jagdgeschwader 51 – Operation Barbarossa — 22 June – 5 December 1941 ||||||||||||
| 8 | 7 | 22 June 1941 | 12:37 | SB-2 | | 15 | 13 | 1 July 1941 | 14:50 | DB-3 | |
| 9 | 8 | 25 June 1941 | 12:32 | SB-2 | | 16 | 14 | 7 July 1941 | 19:30 | V-11 (Il-2) | |
| 10 | 9 | 29 June 1941 | 18:30 | V-11 (Il-2) | | 17 | 15 | 10 July 1941 | 07:50 | R-Z? | |
| 11 | 10 | 29 June 1941 | 19:55 | I-16 | | 18 | 16 | 11 July 1941 | 09:55 | DB-3 | |
| 12 | 11 | 30 June 1941 | 11:45 | DB-3 | | 19 | — | 12 July 1941 | 18:50 | DB-3 | |
| 13 | — | 30 June 1941 | 15:45 | DB-3 | | 20 | 17 | 13 July 1941 | 19:25 | DB-3 | |
| 14 | 12 | 30 June 1941 | 15:50 | DB-3 | | | | | | | |
| – 5. Staffel of Jagdgeschwader 51 – Operation Barbarossa — 26 July – 5 December 1941 ||||||||||||
| 21 | 18 | 26 July 1941 | 16:52 | Boston | | 31 | 28 | 2 October 1941 | 10:55 | I-18 (MiG-1) | |
| 22 | 19 | 26 July 1941 | 19:20 | R-5 | | 32 | 29 | 5 October 1941 | 14:27 | DB-3 | northeast of Sevsk |
| 23 | 20 | 29 July 1941 | 18:30? | SB-3 | | 33 | 30 | 5 October 1941 | 14:30 | DB-3 | northeast of Sevsk |
| 24 | 21 | 29 July 1941 | 18:36 | SB-3 | | 34 | 31 | 7 October 1941 | 14:10 | Pe-2 | |
| 25 | 22 | 9 August 1941 | 13:50 | Pe-2 | | — | — | 8 October 1941 | — | Pe-2 | |
| 26 | 23 | 26 August 1941 | 18:16 | Boston | 15 km (9.3 mi) east of Kaluga | 35 | 32 | 22 October 1941 | 14:59 | I-61 (MiG-3) | |
| 27 | 24 | 30 August 1941 | 17:42 | I-18 (MiG-3) | | 36 | 33 | 24 October 1941 | 14:10 | SB-2 | |
| 28 | 25 | 30 August 1941 | 17:45 | Pe-2 | | 37 | 34 | 5 November 1941 | 09:32 | DB-3 | |
| 29 | 26 | 2 September 1941 | 07:06 | R-5 | 50 km (31 mi) southeast of Sechtschinskaja | 38 | 35 | 16 November 1941 | 09:53? | DB-3 | |
| 30 | 27 | 7 September 1941 | 17:20 | I-61? | 25 km (16 mi) east of Karlewez | 39 | 36 | 2 December 1941 | 11:10 | Pe-2 | |
| – 5. Staffel of Jagdgeschwader 51 – Eastern Front — 6 December 1941 – 24 January 1942 ||||||||||||
| 40 | 37 | 6 December 1941 | 14:10 | I-61 (MiG-3) | 5 km (3.1 mi) east of Kashira | 44 | 41 | 11 January 1942 | 14:05 | Pe-2 | |
| 41 | 38 | 14 December 1941 | 09:20 | Pe-2 | | 45 | 42 | 19 January 1942 | 12:20 | DB-3 | |
| 42 | 39 | 4 January 1942 | 12:15 | Pe-2 | | 46 | 43 | 24 January 1942 | 12:45 | DB-3 | |
| 43 | 40 | 4 January 1942 | 12:50 | Pe-2 | | | | | | | |
| – Stab II. Gruppe of Jagdgeschwader 51 – Eastern Front — March – 30 April 1942 ||||||||||||
| 47 | 44 | 31 March 1942 | 12:10 | LaGG-3 | | 49 | 46 | 7 April 1942 | 10:50 | LaGG-3 | east of Kschen |
| 48 | 45 | 31 March 1942 | 15:12 | LaGG-3 | | | | | | | |
| – Stab II. Gruppe of Jagdgeschwader 51 – Eastern Front — 1 May – 7 October 1942 ||||||||||||
| 50 | 47 | 21 May 1942 | 06:55 | R-Z? | | 71 | 68 | 10 August 1942 | 17:10 | Pe-2 | PQ 47524 20 km (12 mi) south-southwest of Rzhev |
| 51 | 48 | 23 June 1942 | 11:40 | I-153 | | 72 | 69 | 13 August 1942 | 18:03 | Yak-1 | PQ 54294 15 km (9.3 mi) west of Belyov |
| 52 | 49 | 25 June 1942 | 11:29 | I-16 | | 73 | 70 | 20 August 1942 | 11:55 | MiG-3 | PQ 64142 5 km (3.1 mi) northwest of Belyov |
| 53 | 50 | 26 June 1942 | 11:15 | Yak-1 | | 74 | 71 | 21 August 1942 | 11:35 | LaGG-3 | PQ 55884, west of Kozelsk |
| 54 | | 3 July 1942 | 05:10 | I-153 | | 75 | 72 | 22 August 1942 | 16:00 | Pe-2 | PQ 54434 20 km (12 mi) southwest of Belyov |
| 55♠ | 51♠ | 5 July 1942 | 04:46 | Yak-1 | | 76 | 73 | 23 August 1942 | 06:40 | Il-2 | PQ 54412 30 km (19 mi) northeast of Dudorovskiy |
| 56♠ | 52♠ | 5 July 1942 | 04:55 | Pe-2 | | 77 | 74 | 23 August 1942 | 07:00 | Il-2 | PQ 55883 vicinity of Kozelsk |
| | 53♠ | 5 July 1942 | 05:10 | I-153 | | 78 | 75 | 23 August 1942 | 17:33 | Il-2 | PQ 54422 25 km (16 mi) west-southwest of Belyov |
| 57♠ | 54♠ | 5 July 1942 | 09:33 | Il-2 | | 79 | 76 | 25 August 1942 | 06:32 | Pe-2 | PQ 64173 5 km (3.1 mi) southwest of Belyov |
| 58♠ | 55♠ | 5 July 1942 | 09:40 | Il-2 | | 80 | 77 | 27 August 1942 | 17:55 | Yak-1 | PQ 64793 15 km (9.3 mi) northwest of Zalegoshch |
| — | — | 5 July 1942 | — | LaGG-3 | | 81 | 78 | 28 August 1942 | 14:00 | Il-2 | north-northwest of Bolkhov |
| 59♠ | 56♠ | 5 July 1942 | 13:50 | Yak-1 | 15 km (9.3 mi) north of Bolkhov | 82 | 79 | 29 August 1942 | 11:35 | LaGG-3 | PQ 54224 vicinity of Kozelsk |
| 60♠ | 57♠ | 5 July 1942 | 14:27 | Il-2 | | 83 | 80 | 3 September 1942 | 13:30 | LaGG-3 | northeast of Sychyovka |
| 61♠ | 58♠ | 5 July 1942 | 19:30 | Il-2 | | 84 | 81 | 4 September 1942 | 11:52 | I-153 | PQ 73151, east-southeast of Novosil vicinity of Verkhovye |
| 62 | 59 | 9 July 1942 | 05:15 | I-153 | | 85 | 82 | 10 September 1942 | 10:22 | LaGG-3 | PQ 47824 10 km (6.2 mi) east of Zubtsov |
| 63 | 60 | 9 July 1942 | 05:16 | I-153 | | 86 | 83 | 10 September 1942 | 15:05 | MiG-3 | PQ 44132 20 km (12 mi) south-southeast of Kirov |
| 64 | 61 | 18 July 1942 | 11:35 | Yak-1 | | 87 | 84 | 14 September 1942 | 17:00 | Il-2 | PQ 47593 vicinity of Rzhev |
| 65 | 62 | 2 August 1942 | 15:12 | Il-2 | PQ 47582 10 km (6.2 mi) west of Rzhev | 88 | 85 | 14 September 1942 | 17:22 | Il-2 | PQ 47591 vicinity of Rzhev |
| 66 | 63 | 2 August 1942 | 18:05 | Pe-2 | PQ 47572 20 km (12 mi) west of Rzhev | 89 | 86 | 26 September 1942 | 09:25 | R-5 | PQ 47483 10 km (6.2 mi) west of Staritsa |
| 67 | 64 | 4 August 1942 | 06:35 | MiG-3 | PQ 47552 15 km (9.3 mi) south-southwest of Rzhev | 90 | 87 | 26 September 1942 | 09:26 | R-5 | PQ 47483 10 km (6.2 mi) west of Staritsa |
| 68 | 65 | 4 August 1942 | 06:40 | MiG-3 | PQ 47551 15 km (9.3 mi) south-southwest of Rzhev | 91 | 88 | 27 September 1942 | 07:55 | LaGG-3 | PQ 47542 20 km (12 mi) northwest of Rzhev |
| 69 | 66 | 4 August 1942 | 12:05 | LaGG-3 | PQ 47524 20 km (12 mi) south-southwest of Rzhev | 92 | 89 | 1 October 1942 | 11:45 | Pe-2 | 15 km (9.3 mi) northeast of Karmanowo |
| 70 | 67 | 5 August 1942 | 17:00 | Il-2 | PQ 56164 45 km (28 mi) north-northeast of Gagarin | — | — | 4 October 1942 | — | unknown | |
| – Stab II. Gruppe of Jagdgeschwader 51 – Mediterranean Theater — 5 November – 31 December 1942 ||||||||||||
| 93 | | 17 November 1942 | 12:12 | Spitfire | 20 km (12 mi) west of Bizerte | 97 | 93 | 2 December 1942 | 09:53 | P-38 | 30 km (19 mi) west of Tebourba |
| 94 | 90 | 27 November 1942 | 09:19 | Spitfire | 12 km (7.5 mi) south of Béja | 98 | 94 | 4 December 1942 | 10:30 | P-38 | 18 km (11 mi) north of Majaz al Bab |
| 95 | 91 | 28 November 1942 | 09:15? | Lysander | 2 km (1.2 mi) west of Majaz al Bab | 99 | 95 | 5 December 1942 | 10:45 | Spitfire | 8 km (5.0 mi) west of Tebourba |
| 96 | 92 | 2 December 1942 | 09:40? | P-38 | 6 km (3.7 mi) south of Tebourba | | | | | | |
| – Stab II. Gruppe of Jagdgeschwader 51 – North Africa — 1 January – 6 June 1943 ||||||||||||
| 100 | 96 | 2 January 1943 | 12:25? | Lancaster? | southeast of Majaz al Bab | 102 | 99 | 22 March 1943 | 14:10 | Spitfire | 12 km (7.5 mi) south of Gabès 12 km (7.5 mi) south of Mareth |
| | 97 | 2 January 1943 | 12:27 | P-38 | southwest of Majaz al Bab | 103 | 100 | 26 March 1943 | 12:28 | P-38 | 9 km (5.6 mi) north of Maknassy 4 km (2.5 mi) north of Mansoura |
| 101 | 98 | 21 March 1943 | 13:07 | Spitfire | 30 km (19 mi) southeast of Gabès | | | | | | |

### Awards

* Iron Cross (1939)
** 2nd Class (17 September 1939)
** 1st Class (7 July 1940)
* German Cross in Gold on 19 September 1942 as Hauptmann in the II./Jagdgeschwader 51
* Knight's Cross of the Iron Cross with Oak Leaves
** Knight's Cross on 4 September 1941 as Oberleutnant and pilot in the II./Jagdgeschwader 51
** 288th Oak Leaves on 31 August 1943 as Major and Gruppenkommandeur of the II./Jagdgeschwader 51 "Mölders"

### Promotions

| 1 January 1938: | Leutnant (second lieutenant) |
| 1 June 1940: | Oberleutnant (first lieutenant) |
| 1 August 1942: | Hauptmann (captain) |
| 1 December 1943: | Major (major) |