Spitfire – Engine Run

Good man.

Thats a valid question. Everything is heavily over engineered the engine mount was designed by a race car engineer using maths. The hub attachment is also hugely over engineered 1/4 inch steel plate and 5mm 2inch box bracing, the prop is very light whilst being very strong. Its weighs a fraction of the real thing and you can stop it with your hand at low revs. Although it appears quite realistic it has nothing like the force behind it of the real thing.
We have risk assesments and strict procedures including checks prior to every engine run. Along with 8 hr, weekly and monthly.
The hydraulic by pass valve assertains the power that goes to the prop no matter how hard the engine revs. We have tested the prop to over 600 rpm without losing a blade. In public the prop spins at betwwen 60 and 80 RPM.
of coarse in Queens square we had a full H&S inspection and passed with flying colours.

Have you design calcs to prove the propellor system and its mounts Graham?

Last thing you want is to lose a blade or the prop assembly in public.

It was great to see this Spit in the town centre the other weekend, well done to all who made it happen.

http://www.youtube.com/watch?v=k8eXgr3aPGs

Slow and steady keeps its safe here it is going at approx 400 rpm in theory its cablable of 800 :diablo:

http://spitfirespares.com/SPITFIRESPARES.COM/pages/Spitfire%20MkIX%20Replica%20page%201.html