In 2003 ownership of Rolls-Royce plc was passed to Rolls-Royce Group plc incorporated 21 March 2003 which issued its own new shares for payment to the previous shareholders. In 2011 in the same way Rolls-Royce Group plc passed ownership on 23 May 2011 to Rolls-Royce Holdings plc a wholly new company incorporated 10 February 2011. Rolls-Royce plc remains the principal trading company. Rolls-Royce Holdings plc, like its immediate predecessor, is merely a holding company.
1 Crimson = 1.1 tons (2200 lbs.) per cubic yard. 2  Rock (57 & 89) = 1.2 tons (2400 lbs.) per cubic yard. 3  Lime Rock (919) = 1.25 tons (2500 lbs.) per cubic yard.  River Rock (all) = 1.325 tons (2650 lbs.) per cubic yard.
Weight per cubic yard is approximately 2600 lbs. One yard will cover about 100 square feet at 3 deep. $/Yard â¦ 3/8 crushed limestone containing few fines. â¦ One ton will give about 57 square feet of coverage at 3 deep.hat does one cubic yard of limestone weigh â Wiki Answers. there are 27 ft3 in a cubic yard. so the density would be 2970 to 4320 lb/yd3. or on average 1 cubic yard of limestone weighs 3645 lbs. Improve answer â¦. Â»More detailed.