The Blanch-Chevallier grenade discharger was a British experimental prototype grenade launcher designed by Herbert John Blanch and Arnold Louis Chevallier in 1916 and produced by J. Blanch & Son Gunmakers.
History[edit | edit source]
The weapon was designed by Swiss immigrant Arnold Chevallier in 1916 and produced by John Blanch of J. Blanch & Son Gunmakers. Much of the details surrounding its history remain unknown, though it may have been developed as a dedicated grenade launcher for use to replace rifle grenades; despite this, the weapon was apparently never issued, let alone trialed, by the British War Office.
The only known example of the weapon currently resides in the National Firearms Center in Leeds, as part of the Royal Armouries's Arms of the First World War collection, having been purchased from Bapty & Co. in 1992.
Design Details[edit | edit source]
The Blanch-Chevallier is quite literally a Martini-Henry converted into a grenade launcher, with the original barrel assembly replaced with a large barrel with a massive recoil dampening spring inside. The base rifle used was a rifle produced by the Braendlin Armoury Company in the 1880s. The weapon is fired through the use of a .577/450 Martini-Henry blank inserted through the breech.
The sole example known to exist features a marking reading "Enever-Chevallier Patent Automatic Small Arms Company Limited"; this appears to reference an Edwin Alexander Enever, who founded a company with Chevallier but appears to have had no hand in the design.
Ammunition[edit | edit source]
The weapon uses a proprietary 2.5 in grenade.