Destroyed | Northeast of Zillebeke Lake, Belgium | Victim was from No. 22 Squadron RFC |- | align="center"| 2 | align="center"| 3 September 1917 @ 1040 hours | Albatros D.III | Royal Aircraft Factory RE.8 | Destroyed | West of Tenbrielen, Belgium | Victim was from No. 4 Squadron RFC |- | align="center"| 3 | align="center"| 11 October 1917 @ 0830 hours | Albatros D.III | Royal Aircraft Factory SE.5a | Destroyed | Between Koelberg and Gheluvelt, Belgium | Victim was from No. 56 Squadron RFC |- | align="center"| 4 | align="center"| 12 October 1917 @ 1215 hours | Albatros D.III | Sopwith Pup serial number B1830 | Destroyed | Westrozebeke, Belgium | Victim was from No. 66 Squadron RFC |- | align="center"| 5 | align="center"| 15 October 1917 @ 1510 hours | Albatros D.III | Bristol F.2b Fighter | Destroyed | Becelaere | Victim was from No. 20 Squadron RFC |- | align="center"| u/c | align="center"| 18 October 1917 | Albatros D.III | Bristol F.2b Fighter | | Moorslede, Belgium | |- | align="center"| 6 | align="center"| 24 October 1917 @ 1427 hours | Albatros D.III | Spad | Destroyed | South of Westroosebeke, Belgium | Victim was from No. 23 Squadron RFC |- | align="center"| 7 | align="center"| 31 October 1917 @ 1610 hours | Albatros D.III | Royal Aircraft Factory SE.5a | Destroyed | Ketzelberg | Victim was from No. 84 Squadron RFC |- | align="center"| 8 | align="center"| 8 November 1917 @ 1510 hours | Albatros | Royal Aircraft Factory SE.5a | Destroyed | Between Roeselare and Moorslede, Belgium | Victim was from No. 84 Squadron RFC |- | align="center"| u/c | align="center"| 15 November 1917 | Albatros | Spad | | Zandvoorde, Belgium<ref>List collated from Franks, et al., pp. 43-44, 132, and The aerodrome website at http://www.theaerodrome.com/aces/germany/hoyer.php Retrieved 27 November 2011.</ref> | |- |} Awards and decorations Knight's Cross of Military Order of Saint Henry 1914 Iron Cross, Second and First Class Endnotes References Franks, Norman, Frank W. Bailey, and Russell Guest (1993). Above the Lines: The Aces and Fighter Units of the German Air Service, Naval Air Service and Flanders Marine Corps, 1914-1918. Grub Street Publishing. , . Franks, Norman (2000). Albatros Aces of World War 1: Volume 32 of Aircraft of the Aces: Volume 32 of Osprey Aviation Series: Volume 32 of Osprey Aircraft of the Aces''. Osprey Publishing. , . German World