No. It's pure science....speed generates heat, and heat makes metal expand.Come on, man...It just seemed impossible.
I thought you might have been exaggerating to see who was paying attention.
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No. It's pure science....speed generates heat, and heat makes metal expand.Come on, man...It just seemed impossible.
I thought you might have been exaggerating to see who was paying attention.
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I agree with that, I just found the part about a 9 inch growth in length to be like an exaggeration like those add three inches ads in men's magazines.No. It's pure science....speed generates heat, and heat makes metal expand.
How much gain did you personally see?I agree with that, I just found the part about a 9 inch growth in length to be like an exaggeration like those add three inches ads in men's magazines.
Different flavors?What is this man selling?
The fuselage length expansion was the reason the interior seating floor was on rollers, not fixed to the outside skin with hard points. It was designed to accommodate up to a foot of expansion.Come on, man...It just seemed impossible.
I thought you might have been exaggerating to see who was paying attention.
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That works for snails also..... they go all green and frothy. We had a major snail infestion in London.....I put a few lids out with beer (ale) and they made a beeline for it.....killed almost instantly.You can clear your garden of slugs with a lid full of beer.
Something the British engineers had to wrangle with during the design.Hey, it's a european aircraft...use centimeters
That's part of the reason why they re-fuel the Blackbird after take-off.....as it leaks so much fuel until reaching a decent airspeed.
Thankfully that will never be a question on "The Chase""Col. Richard H. Graham, a former SR-71 pilot, explains why the Blackbird had to refuel right after takeoff in his book SR-71 The Complete Illustrated History of THE BLACKBIRD The World’s Highest, Fastest Plane.
“Many people believe we refueled after takeoff because the aircraft leaked fuel so profusely that we needed to fuel up quickly. We had to refuel right after takeoff for only one reason, and it wasn’t because we leaked JP-7 fuel on the ground. Yes, the plane does leak fuel, but not enough to require refueling after takeoff.
“The JP-7 fuel reaches temperatures well over 300 degrees F. during Mach 3 cruise, making the fumes in each of the six fuel tanks very volatile and potentially explosive. The metal skin of the aircraft approaches 400 degrees F., adding to the volatility of the fuel inside the tanks. One of our aircraft limitations was a maximum speed of Mach 2.6 without an inert atmosphere inside the fuel tanks.
The aircraft had three liquid nitrogen Dewar flasks containing 260 liters of liquid nitrogen, located in the nose wheel well. The only way to ensure a 100 percent inert atmosphere in each fuel tank was to refuel the plane inflight completely full of JP-7, allowing ambient air in each fuel tank to vent overboard. Once full of fuel, gaseous nitrogen would now dominate each fuel tank’s empty space above as it burned off JP-7. The nitrogen gas pressurized each fuel tank to 1.5 psi above ambient pressure and inerts the space above the heated fuel to prevent autogenous ignition. This is why we refueled after takeoff. Then we could safely accelerate beyond Mach 2.6."