untamped

In films, great use is made of low velocity explosives such as untamped black powder and ANFO because they are low velocity explosives.

WHAT REALLY HAPPENED Mike Rivero 2010

In films, great use is made of low velocity explosives such as untamped black powder and ANFO because they are low velocity explosives.

WHAT REALLY HAPPENED 2009

Just with my own experience in fracturing reinforced concrete, et cetera, that's not easily done, and it's especially not easily done with an untamped explosive.

CNN Transcript Jul 7, 2005 2005

The amount of explosive required to cut a round timber 30 inches in diameter using an untamped external charge is determined as follows:

Army Field Manual: Explosives and Demolutions Extract by the Death Jester 1971

For untamped external ring charges, plastic explosive (Composition C4) or sheet explosive (M118 or M186) is used, as it is easily fastened to the target and molded around the target.

Army Field Manual: Explosives and Demolutions Extract by the Death Jester 1971

Figure 3-13 shows typical methods for placing charges and gives values of C to be used in the breaching formula with both tamped and untamped charges.

Army Field Manual: Explosives and Demolutions Extract by the Death Jester 1971

Formulas for the calculation of these test shots are provided for tamped internal charges, and untamped external charges.

Army Field Manual: Explosives and Demolutions Extract by the Death Jester 1971

-- A limit charge will be determined within 25 grams by firing charges in their original wrappers, untamped, at a gallery temperature of 77° F., into a mixture of gas and air containing 4 per cent. of methane and ethane and 20 pounds of bituminous coal dust, to be arranged in the same manner as in test 2.

Transactions of the American Society of Civil Engineers, vol. LXX, Dec. 1910 Federal Investigations of Mine Accidents, Structural Materials and Fuels. Paper No. 1171 Herbert M. Wilson