Piston Aircraft World Speed Record Broken

Triton

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"Absolute World Speed Record for Piston Engine Propeller Driven Airplane Set by Steve Hinton Jr."

Source:
http://www.prnewswire.com/news-releases/absolute-world-speed-record-for-piston-engine-propeller-driven-airplane-set-by-steve-hinton-jr-300515252.html

SEATTLE, Sept. 7, 2017 /PRNewswire/ -- At a remote location in Central Idaho on a private airport on Saturday 09/02/2017 at 5:30PM Steve Hinton became the fastest pilot on the planet ever in a Piston Engine Propeller Airplane. Four laps over a three-kilometer course at an average speed of 531.53/MPH- the fastest lap was 554/MPH in a highly modified P51 Mustang. Aerodynamic wing modifications by Aviation Partners, Inc. played a key role in achieving the absolute world speed record over the 3-kilometer course. Aviation Partners, known worldwide for its Blended and Split Scimitar Winglets TM, on Business Jets and Commercial Aircraft used highly sophisticated computational fluid dynamics (CFD) methods to redesign the P51's wing surface airfoils and to reduce and eliminate the strong shock waves created at Mach number 0.75 and 0.80. The modification thereby delayed the drag rise Mach number, allowing the P-51 to achieve higher speeds.

Hinton commented, "The airplane accelerated much faster to the high-speed realm." Hinton also said he saw a much faster airplane at 100 inches manifold pressure than he had ever seen before. Joe Clark, CEO of Aviation Partners, Inc. said, "We agreed to sponsor the record attempt because we felt we could add significant value. That appears to be the case." Clark added, "We used the same drag reduction methodology on the Mustang as we used on the Boeing Jetliners and numerous Business Jets to make them more efficient.

"My sincere congratulations to Steve Hinton and his amazing crew, API's dedicated engineers, and Bob Button the owner of Voodoo, the highly modified P51, for this remarkable achievement."

Aviation Partners, Inc.

Seattle, Washington based Aviation Partners, Inc. (API) is the world leader in advanced Winglet technology. API's patented Performance Enhancing Blended Winglets™ have been designed and certified for a number of commercial and business aircraft; applications include Boeing, Falcon, Hawker and Gulfstream airframes. Over 8,000 in-service aircraft have saved an estimated 7.5 plus billion gallons of fuel. In addition to the 5-7% improvement in fuel burn, Blended Winglets have reduced global CO2 emissions by approximately 80 million tons. Additional airframe programs are in-development for existing Blended Winglet technology, and future Winglet designs will lead to greater incremental improvements in performance, fuel savings and emissions reduction.
 

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kaiserd

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Some good news at last.
Thanks for the post Triton.
 

Mike Pryce

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LowObservable said:
Let's reproduce a Sabre and go after these guys.

We have one. 19.5% t/c may be an issue tho'.

https://www.cranfield.ac.uk/press/news-2017/cranfield-helps-typhoon-project-with-engine
 

sferrin

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While notable, it's not much higher than the previous record:

"Rare Bear has set many performance records for piston-driven aircraft, including the 3 km World Speed Record of 528.33 mph (850.26 km/h) set August 21, 1989"

One wonders what somebody could have done with a modernized XP-72, Dornier Do 335, Supermarine Spiteful F.16, or the like.
 

LowObservable

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It's a shame to take a Sabre and put it in the world's fastest lorry...
 

Mike Pryce

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It was a lorry, but the drivers were not like today's:

https://www.aerosociety.com/news/podcast-the-bill-humble-interview/

“Typhoon was a bit of a bloody aeroplane, it was rough…a bit of an old bag…generally rough and very coarse…it was a pig”

Typhoon critical Mach 0.72. Tempest much better “The type of girl you take to the vicar’s tea party and she would never put a foot wrong”

Fury was “a bit of a coquette; if you took her to the vicar’s tea party she’d have his gaiters off in 5 minutes.”

I wonder what speed a cleaned up Sabre Fury would reach?
 

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yasotay

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Well I for one think it only proper that a P-51 is the maintainer of fastest prop aircraft.

Then I have been biased this way for at least fifty years. B)
 

AeroFranz

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Pierre Clostermann chased a Do-335 flying a Tempest in WEP, while Pfeil was using MW (or whatever boost it was equipped with). Said he couldn't keep up with it and it was so obvious he gave up.
Of course a combat-ready Tempest would have had all sorts of excrescences that limited max speed potential. But yeah, a racing Sabre-Tempest would be a thing of beauty. Maybe clip the wings a lil'bit, fair in the aft cockpit...but i would hate to ruin the beautiful proportions.
 

Triton

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Should we consider the highly modified "Voodoo" (s/n 44-73415) to still be a North American P-51D Mustang? While "Voodoo" may not have beaten "Rare Bear"'s speed record, I still believe that it's impressive that they continue to invest in modifying the aircraft to achieve additional performance. Perhaps we'll see similar modifications to other Unlimited class air racers?
 

Triton

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sferrin said:
While notable, it's not much higher than the previous record:

"Rare Bear has set many performance records for piston-driven aircraft, including the 3 km World Speed Record of 528.33 mph (850.26 km/h) set August 21, 1989"

One wonders what somebody could have done with a modernized XP-72, Dornier Do 335, Supermarine Spiteful F.16, or the like.

After Voodoo underwent further modificiations including removal of the aircraft's racer paint scheme, and sponsored by Aviation Partners, Hinton made an attempt to break the 3 km World Speed Record of 528.33 mph (850.26 km/h) set by Rare Bear on August 21, 1989. The record attempt was set to occur on August 27, 2017 at an undisclosed location in Idaho[8] but was delayed until the next day due to weather conditions[9]. The attempt was finally flown on 2 September, 2017, with the fastest of four runs recorded as 554.69mph and an average speed of 531.53mph. While this broke the C-1e record set by Will Whiteside in the Yak-3U Steadfast in 2012, due to changes in record measurement standards the Rare Bear record was not bettered as it had to be beaten by at least 1% (533.6mph)

Source:
https://en.wikipedia.org/wiki/Voodoo_(aircraft)
 

LowObservable

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So I wonder what Mr Humble's analogy would be for the Heston J.5. It might not be suitable for a family forum.
 

Mike Pryce

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LowObservable said:
So I wonder what Mr Humble's analogy would be for the Heston J.5. It might not be suitable for a family forum.
Probably not a million miles from what the aircraft was almost saying through its registration.
 

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sienar

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I wonder how much evaporative cooling would improve things. At the very least it'd make the aircraft look a lot better.
 

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AeroFranz

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Was it Lee Atwood, who said the Meredith effect canceled much of the drag penalty of the radiator?
 
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