propellant grain

propellant grain

[prə′pel·ənt ‚grān]
(materials)
An elongated molding or extrusion, often of intricate shape, of solid propellant for a rocket, regardless of size.
References in periodicals archive ?
The MK 90 propellant grain is the propulsion component of the Hydra 70 family of rockets used by the US military and several allied nations to support overseas operations.
M2 EQUITYBITES-August 21, 2015-BAE Systems gets USD50m munitions contract for MK 90 propellant grain
Regardless of the composition, however, all propellants are processed into a similar basic geometric form, referred to as a propellant grain.
The oxidiser is generally a crystalline solid (such as Ammonium Perchlorate), the fuel and oxidiser are premixed into a propellant grain which is contained in a motor case.
Under the contract, Positron Systems will demonstrate that its Photon Induced Positron Annihilation (PIPA) technology can detect structural and chemical reaction issues in solid rocket motor propellants, prior to the onset of propellant grain cracking.
There are also effects expected in the area of propellant grain regression rate that plays a primary role in the performance of hybrid propulsion for instance.
Tenders are invited for Extruded Double Base Propellant Grains
When you compress a heavy charge of "stick" powder, you can actually hear the crunch of the propellant grains breaking up under the bullet base.
After this cooking phase is done, the propellant grains are dried in temperature- and humidity-controlled cabinets to very exacting amounts of residual moisture.
It could outrange Iraq's Soviet-made tanks because energetics experts developed high-energy propellant grains, each the same size and including engineered holes that enabled increased combustion.
By exposing the insects to the odor of explosives followed by a sugar water reward, researchers said they trained bees to recognize substances ranging from dynamite and C-4 plastic explosives to the Howitzer propellant grains used in improvised explosive devices in Iraq.
Tenders are invited for Sorting Machine For Propellant Grains