06-18-2008, 01:58 AM
Athena/Cheryl wrote:
A report by Dr Jeronomides on the Vatican Aspis/shield gives dimensions as follows:
Diameter: slightly non-circular 82-81.5 cm ( probably due to play in the bearings of the lathe)
Thickness: 2.0-2.5 cm ( estimate of original thickness) in centre, tapering through 1.9 cm on the 'shoulder' to 1.1 cm where bowl meets rim, which also tapers 8mm at rim
Width of rim: 3.8 cm
Thickness of bronze: less than 0.5 mm( 22-24 gauge)( and probably around 0.1-0.2mm on average - less than 30 gauge) - a rough calculation thus shows the wood core should weigh around 4 kg, and the bronze sheath about 0.6 kg(1.35 lbs) (based on 0.1-0,2 mm);
2 kg max. (4.5.lbs) based on 0.5mm
Thickness of leather lining 0.25 mm ( the interior and inside of rim both, the joint between bowl leather and rim leather was sewn).....
....this implies an overall weight with fittings lining etc of around 7 kg (15.5 lbs) aprox....
Quote:The weight of the metal will add about 20 lb. (9.1 kg)......something is wrong here,Cheryl - the whole Aspis should not weigh more than 7-8 kg......
A report by Dr Jeronomides on the Vatican Aspis/shield gives dimensions as follows:
Diameter: slightly non-circular 82-81.5 cm ( probably due to play in the bearings of the lathe)
Thickness: 2.0-2.5 cm ( estimate of original thickness) in centre, tapering through 1.9 cm on the 'shoulder' to 1.1 cm where bowl meets rim, which also tapers 8mm at rim
Width of rim: 3.8 cm
Thickness of bronze: less than 0.5 mm( 22-24 gauge)( and probably around 0.1-0.2mm on average - less than 30 gauge) - a rough calculation thus shows the wood core should weigh around 4 kg, and the bronze sheath about 0.6 kg(1.35 lbs) (based on 0.1-0,2 mm);
2 kg max. (4.5.lbs) based on 0.5mm
Thickness of leather lining 0.25 mm ( the interior and inside of rim both, the joint between bowl leather and rim leather was sewn).....
....this implies an overall weight with fittings lining etc of around 7 kg (15.5 lbs) aprox....
"dulce et decorum est pro patria mori " - Horace
(It is a sweet and proper thing to die for ones country)
"No son-of-a-bitch ever won a war by dying for his country. He won it by making the other poor dumb bastard die for his country" - George C Scott as General George S. Patton
Paul McDonnell-Staff
(It is a sweet and proper thing to die for ones country)
"No son-of-a-bitch ever won a war by dying for his country. He won it by making the other poor dumb bastard die for his country" - George C Scott as General George S. Patton
Paul McDonnell-Staff