ITOP 4-2-602 PDF


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The test ammunition is visually inspeeted for any obvious signs of damage.

Using cartridge dummies or mass models to complete filling a package should be used only as a last resort as it is difficult to assure that these items truly replicate the vibrational characteristics of test ammunition. This test determines the effects of salt-water immersion on exposed ammunition.


Gusty winds adversely affect both accuracy and dispersion measurements and should be avoided. Other effects, such as noise and recoil, have safety implications. Firings are done at ranges and obliquities determined from requirements documents or from the Request for Test Services. The smoke cloud accumulated at the gun during firing is evaluated from the standpoints of target obscuration when viewed from directly behind the gun and visibility or signature of the cloud from a distance beyond the muzzle.

Test ammunition is fired in alternate trials with known standard ammunition. All components must be present, including projectile paint and markings, fuzes, any tool marks, etc. This test is done with unpackaged ammunition to simulate transportation as loose cargo. It does not address laboratory explosive tests and certain highly specialized test that require unique facilities.

If water is used as an impact media, the impact angle must be controlled by raising the weapon above the level of the water and firing in depression.

Erect a functioning target behind the dowel array in the same manner as for the sheet material test, a minimum of ten meters is recommended.

Conducting all three procedures will allow comparison of data across conditions 4-2-6602 will greatly aid the development of an error budget. Magazine fed weapons should be tested with an empty magazine other than the single round to be fired.


The data is used to determine range ifop fans. Requirement documents or the test plan usually list the desired angles. The solution must eover the test items eompletely. For example, provide military issue cold weather gloves to weapon operators during extreme cold functioning tests and observe for the ease of unpacking the ammunition and loading a 44-2-602. For large plates the hardness and thickness should be measured in a grid pattern, a spacing of mm is usually appropriate.

Ground mounts Ballistie Pendulum, aeeuraey, Blast Overpressure, ete. Record the height of the weapon muzzle above the impact area, the weapon elevation, and the expected distance to impact. Its primary disadvantage is that it requires range facilities to accommodate long range firings; also, the target size needed to assure a good probability of a fair hit may become uneconomically large or even impossible.

Conformal gages are a specialized type of piezoelectric transducer. Test ammunition must be fired to determine its performance in its intended weapons. Reeord muzzle veloeity, dispersion, weapon funetion, and fuze funetion for fuzed eartridges.

ITOP | Rough Handling Tests, Final Report | Document Center, Inc.

If the results are eritieal it will be neeessary to use radar traeking along the line indieated by the witness sereens. Many of the referenced documents assume test items much larger than typical recoilless rifle ammunition; this TOP 4–2602 information for tailoring such procedures to be more suitable for recoilless rifle munitions. Recoilless rifle fuzes are an integral part of cartridges as shipped from the ammunition producer; they are not shipped separately to the using Soldier.

If the item is instrumented, a single test item is sufficient for each individual test sequence i. The ammunition must remain safe and serviceable in the electromagnetic environment and it must not adversely affect neighboring systems. This test is typically performed with production representative weapon otop. Data Required 1 Complete description of the configuration of the test items. Exeessive reeoil ean degrade training, injure the shooter, and damage weapon mounts. Inspect fired cases for any defects.


For Recoilless rifle ammunition, the ITOP procedure is somewhat simplified in that the five groups of ammunition are dropped, one round at a time, dropped twice in the following five orientations: Most fuze testing is done with highly specific procedures that are subject to change; the test officer must assure that up to date procedures are used.

Other mechanisms, such as chemical or incendiary effects, are not considered.

42–602 A statistician or mathematician familiar with the OSTR procedure should advise on each step of the procedure. If firing with ammunition eonditioned to extreme temperatures is required, first establish the debris 4-2602 using ambient temperature ammunition. Review all instructional material issued by the manufacturer, contractor, or government, as well as reports of previous similar tests conducted on the same type or test item; familiarize all test personnel with the contents of such documents.

This test is equivalent to km of transport as loose cargo in tactical wheeled vehicles over rough terrain. The test consists of hour exposures to the ittop fog environment alternated with hour drying periods. If no other guidance is given, use aluminum plate, alloy T3, and use However, if the test is speeifically a safety test, the entire 20 minutes of loose eargo exposure should be uninterrupted in order to provide an additional margin of safety.

All fuze eomponents sueh as eleetro explosive deviees EEDstab detonators, ete. After the drops, inspeet the shoek adsorbing material, any individual paekages, and eaeh eartridge. Wind conditions ihop affect the flight of the bullet and must be kept at a minimum to assure quality results.