BOC: Me 262, Prince of turbojets

[Brian Halligan]

Andy Gilham wrote:

> Well, I can't find it on line, but it was in todays' Times...  apparently
> the Me 262 was the first plane to break the sound barrier.  This old guy,
> Hans Guido something, he's 79 now, was an Me 262 pilot, and he made a
> screaming dive to join a dogfight and his speedo jammed at 1100 kph, and
> rivets started flying out of his wings etc...  Can anyone find something on
> line to back this up?

>From the New York Times:

Pilot Claims He Broke Sound Barrier

By THE ASSOCIATED PRESS

Filed at 1:54 p.m. ET

BERLIN (AP) -- A former Luftwaffe pilot says he broke the sound barrier
first -- not Chuck Yeager. But the German's claim cannot be verified, at
least not yet.

Flying alone over Austria on April 9, 1945, at the end of World War II, Hans
Guido Mutke pushed his Messerschmitt 262 to full throttle in hopes of
reaching a friend who had bailed out under U.S. attack.

Mutke says he later realized the shaking and loss of control he felt before
the plane reached 690 mph meant he had broken the sound barrier.

``I knew nothing about a sound barrier,'' he said Thursday from Munich. ``I
just went full speed to help a comrade.''

Now age 79 and a retired doctor, Mutke has asked an aeronautics professor to
help substantiate his claim using computer simulation.

By all accepted accounts, on Oct. 14, 1947, Yeager was the first human to
break the sound barrier when he flew his rocket-powered X-1 over Rogers Dry
Lake in southern California.

Mutke said he was cruising at 40,000 feet when he heard of his friend's
trouble and went into a dive. As his jet accelerated, he said he felt his
plane ``buffeting'' -- a known phenomenon of vibration before reaching the
speed of sound.

Mutke believes he then went supersonic -- something test pilots hadn't done
previously because they usually backed off when their planes shook.

``It's like when you pass a finger slowly through a candle flame and your
finger gets burned. When you move it quickly, then nothing happens,'' said
Mutke. ``I went so fast through the buffeting area that it was only heavily
damaged, both engines lost function and the rivets flew out of the wings.''

After landing because of the damage to his plane, Mutke denied to superiors
that he had exceeded 590 mph -- the top speed then allowed.

There had been several unexplained Me262 crashes earlier that Mutke
speculates were caused when pilots broke the sound barrier and paid with
their lives.

``I always said the first person who broke the sound barrier is the unknown
pilot, exactly as we have the unknown soldier,'' Mutke said.

For the last several years, Otto Wagner, a professor at Munich's Technical
University, has done computer simulations to try to verify Mutke's claim. He
has been able to simulate the Me262 at Mach 1.02 -- just above the speed of
sound -- but he says the basic data on the plane's aerodynamics are not
reliable. He's now trying to obtain wind tunnel studies from 1944 at the
Messerschmitt factory in Berlin to do a more accurate simulation.

``If I had better data, then I could say it was faster than sound or not,''
Wagner said. ``Now I can't say anything.''

But the head of the Deutsches Museum air and space collection -- which
houses another Me262 flown by Mutke -- rejects the pilot's claim.

``In science, you have to be able to reproduce something to put it on the
record,'' said Matthias Knopp, a physicist. ``If someone says they did it,
but it can't be reproduced, then many could say that they have done it.''