[NZtyphoon]

Originally Posted by *Buzzsaw*

I also checked the Spitfire IA to see if its weight is off. And yes, it is, by 107 lbs, or 49 kgs. The game Spitfire IA with Rotol prop and 100 octane is 2799 kgs, or 6157 lbs. It should weigh 2750 kgs, or 6050 lbs. You can see the weight listed in this document, which shows the weight of a Spit IA with Rotol prop, bullet proof glass and armour plating:



More details of this test can be seen here:

http://www.spitfireperformance.com/n3171.html

Good work on this Buzzsaw. Note too that the Rotol propeller unit used on N3171 was heavier than the de H unit; the de H 2 speed unit weighed 345 lbs

For comparison tare weights are given here (Spitfire I w/de H unit 4,599lb, no armour or IFF):

http://www.spitfireperformance.com/l1007.html

Spitfire I w/Rotol 4,713 lbs a difference of 174 lbs:

http://www.spitfireperformance.com/n3171.html

With armour plating and IFF equipment fitted the standard de H propeller Spitfire I would have been slightly lighter than the Rotol equipped versions without armour and IFF, not forgetting the conversion to de H CS propeller, which would have added some weight to the propeller unit.