r2d2m2

Jun 21 2009, 01:45 AM

According to Loose Change 9/11 the Boeing 757 that supposedly hit the pentagon had Pratt & Whitney engines. This is incorrect. Let me explain...

Like most airliners the Boeing 757 came with a choice of engines. A few airlines did chose Pratt & Whitney engines but the majority went with the Rolls Royce option. In fact, according to a Rolls Royce publication from 1992, 80% of airlines at that time had chosen the RB211 535 for their 757s. This publication doesn't say which airlines went with the Rollers but it doesn't really need to. The airline we are concerned with is American Airlines. And guess what? The same publication includes a picture of an American Airlines 757 with two 535s attached.

We can also be pretty sure that American Airlines have never re-engined their 757s because according to their website they still have 535s.

So, unless I am overlooking something, flight 77 had two Rolls Royce RB211 535s and therefore the evidence presented in this video isn't strictly correct.

Having said that the argument does still apply. We just need to iron out the creases. Which brings me to my next point...

You will not find the properties of an alloy on the periodic table. That is the whole point of alloys. Change the composition and you change the properties. Let me assure you that, thanks to special alloys with special coatings, the 535 is cooking at temperatures close to 2000 celsius (400 degrees higher than the melting point of titanium). And the combustion chamber does not come anywhere near melting. Pure titanium is quite tough but it's not as tough as the stuff we make flame tubes from. And there is certainly no point making arguments based on it's properties as titanium is not used in a pure form anyway. This simply shows a lack of understanding, which obviously isn't good when dealing with such a sensitive topic.

To prove that the engines from flight 77 could not have been vaporized we must get our facts straight. For the sake of all those concerned the evidence presented must stand up. It is time to examine this argument more carefully. Let us make sure we are talking about the right engines and the right materials.

Maybe I can help (anyone who needs it). I make Rolls Royce engines.