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[synchro1]

Here's a picture of it:

[Pirate88179]

Typical of the X-1 series was a loaded weight of a tad over 12,000 pounds while the standard 4 cylinder motor had a total thrust of 6,000 pounds. With thrust being only half its weight at rotation, the climb was not all THAT steep. 

Your vague semi quote was probably your poor memory of Yeager saying that immediately after an air drop, he held the X-1 down so he wouldn;t crash into the B-50 overhead. And near the end of the fuel burn, the aircraft weight would have been down close to 7,000 pounds. With a thrust of 6,000 pounds, it would have gone like hell and impressed him with the acceleration. Until the X-1 the best weight to thrust ratio he had experienced may have been an F-80 or F-84, with a ratio of much worse than the nearly 1:1 of a nearly burnt out X-1.

You originally blurted out "1'000 MPH at 10 feet off the deck". Now you are back pedaling and weaseling and trying to hide your tracks.


You make a sensational claim, YOU FURNISH QUOTES AND PROOF!! All you're furnishing are vague half-memories of what you might have read.

Your credibility has just crashed and burned. Like Yeager's 104. 


CANGAS 176

Ummm...no, you are not correct.  Yeager said this about his GROUND take-off.  I think he would know the difference from a ground take-off to a drop from a B-29...right?  Or, do you not agree?

I was correct about the top speed, I was just mistaken that he hit this speed on the deck.

I am still correct that he flew faster than the 250-300 in ground effect that was deemed "impossible" earlier in this topic.

Also, all X-1 pilots dropped the nose of the craft after being dropped because the B-29's speed was very, very close the the stall speed of the X-1 and, as Yeager has said...stalling the X-1 after being dropped while fully loaded with fuel was not a good thing to do.  Gravity, and the climb that Maj. Gardenias put the 29 into during the drop would have kept the X-1 from hitting the B-29 so...you are not correct about this either.

TK's video links also prove that high speed is indeed possible in ground effect.  Of course, you think they are fake.  If I have to, I can search out a video of Tex Johnson (Famous Boeing test pilot) flying a 707 jet airliner during the test phase making maneuvers that you guys would also deem impossible.

OK  Here is one link: https://www.youtube.com/watch?v=Ra_khhzuFlE

Here is a 757 doing a vertical climb after a high speed low pass in ground effect: https://www.youtube.com/watch?v=eRiCHgQnf9s
He is obviously going near top speed in the low pass otherwise he could not have went vertical.

One of these planes is only about 10 ft. off the deck doing about 400 knots: https://www.youtube.com/watch?v=fJGVXpunZ_4&list=PL1AE2DC91FAD215D0&index=2

Here is a high speed pass by a Jaguar under 10 ft off the deck: https://www.youtube.com/watch?v=JKME4EQDkIU&list=PL1AE2DC91FAD215D0&index=3

Here is an F-14 in ground effect over water at high speed:https://www.youtube.com/watch?v=7yreoDmKN_M&index=10&list=PL1AE2DC91FAD215D0

B-52 doing a high speed low pass in ground effect:https://www.youtube.com/watch?v=xt4xxVyZvwM&list=PL1AE2DC91FAD215D0&index=16

747 doing a low pass at about 15 ft off runway:https://www.youtube.com/watch?v=B6s0pBqIriw&index=48&list=PL1AE2DC91FAD215D0

777 doing a high speed low pass in ground effect: https://www.youtube.com/watch?v=b1ijLu2HzvI

Harrier doing over 400 knots in ground effect:https://www.youtube.com/watch?v=WRfDsSnLtE4

727 doing 300 knots in ground effect:https://www.youtube.com/watch?v=xXXA-pRIQV8&index=76&list=PL1AE2DC91FAD215D0

747 ground effect high speed pass:https://www.youtube.com/watch?v=zVBhFaToYC0

Well, so much for it being impossible eh?  Looks like your theory just crashed and burned.

Bill

[Pirate88179]

Here's a picture of it:

That is not the X-1 that broke the sound barrier Oct. 14, 1947.  This photo is the X-1 E model.  I think this one had a little bigger engine.

Good photo.

Bill

PS  Here is the original X-1 the same that did the ground take off:

[Pirate88179]

Typical of the X-1 series was a loaded weight of a tad over 12,000 pounds while the standard 4 cylinder motor had a total thrust of 6,000 pounds. With thrust being only half its weight at rotation, the climb was not all THAT steep. 



CANGAS 176

Incorrect again.  That would be for a drop flight.  The X-1's landing gear was designed to be used when the fuel was gone and would not support a full fuel landing or take-off.  So, Jack Ridley got out his slide rule and calculated just how much fuel they would hold and also the take-off distance required.  Yeager said that when he took off, it was exactly at the spot Ridley had driven a stake into the ground based upon his calculations.

Therefore, the climb would have been very steep indeed as the ship was very light compared to the air drop weight.

Bill

[Red_Sunset]

Guys, your focus is badly distorted in your discussion about "ground speed"
You are missing the point
The possibility to fly on that LEVEL is immaterial as a  YES or NO.
The flying object was on a DESCENDING COURSE ANGLE trying to CRASH into  the Pentagon.
YES, crashing it did, with or without ground buffer.

So long it came to a rest into the wall is all what mattered, even if it had to use its landing gear to do so.

Red