Hughes H-4 / HFB-1 Hercules

1947

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Hughes H-4 / HFB-1 Hercules

The truly massive Hughes H-4 Hercules flying boat was conceived by reclusive millionaire entrepreneur Howard Hughes in 1942 as a means of delivering massive quantities of men and materiel to various war zones, hence avoiding the submarine menace that presented a constant threat to merchant ships.

On 2 November 1947, the Hercules - nicknamed the 'Spruce Goose' because of its wooden construction, although the wood was mainly birch, not spruce - made a short flight of about a mile over Los Angeles roadstead in front of an excited crowd estimated at 50,000 people, rising 21m off the water and reaching a speed of 129km/h. Yet by 1947 the aircraft no longer had any strategic value, and it never flew again. Today, it is on permanent display at the Evergreen Air Venture Museum, McMinnville, Portland, Oregon. It is still the largest aircraft in the world (only by its wingspan).

FACTS AND FIGURES

© The four inner propellers had reverse-pitch capability, allowing the H-4 to back up and manoeuvre easily on water. Each propeller was 5.2m in diameter.

© The 'Spruce Goose' was the only Allied aircraft designed during the war able to carry main battle tanks. In theory a fleet of H-4s could have ferried armies to Europe, saving time and avoiding the risk from submarines.

© The main structure was not spruce, but laminated birch. Attempts to use a resin-impregnated plywood material called Duramold were unsuccessful.

Hughes H-4 / HFB-1 "Hercules" on YOUTUBE

Hughes H-4 / HFB-1 Hercules

Specification 
 MODELH-4
 ENGINE8 x Pratt & Whitney R4360-4A, 2236kW
 DIMENSIONS
  Wingspan97.5 m320 ft 11 in
  Length66.6 m219 ft 6 in
  Height24.1 m79 ft 1 in
  Wing area1061.8 m211429.11 sq ft
 PERFORMANCE
  Max. speed378 km/h235 mph
  Cruise speed225 km/h140 mph
  Ceiling6400 m21000 ft
  Range2535 km1575 miles

3-View 
Hughes H-4 / HFB-1 HerculesA three-view drawing (1276 x 1268)

Comments1-20 21-40
declan john mary jesus christ , e-mail, 17.12.2010 22:23

this is the coolest plane in the whole world,and it can still fly,its a credit to the genius of howard hughes god bless him

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Carl Sheehy, e-mail, 09.12.2010 03:18

I had the pleasure in 2009 of visiting the Evergreen Aviation and Space Museum and of walking inside the "goose". It is probably the lfinest facility I have ever been in and I recommend it to anyone who gets within 200 miles. It is well worth the detour to see.

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H. De Bruijn, e-mail, 27.11.2010 21:39

Sorry the spelling, ((Spruce-Goose))

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H. De Bruijn, e-mail, 27.11.2010 21:37

Anyone know why the Sproose-Goose was taken from Long Beach CA. next to the Qween Mary?? I had the oportunity to go in it at childhood and wanted to go again and found out it is not there anymore.

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William Ramsey, e-mail, 13.06.2010 00:09

For Don Williams: Yes, those were indeed P&W R-4360's
I flew C-124's for what seemed like forever. I had an opportunity to go into the cockpit years ago. After looking at the Engineer's panel and looking closely at the nacelle's
those were 4360's.

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arlequin, e-mail, 22.03.2010 13:40

i need drawing file ...

CAD or CATIA drawing file

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Jack Fetner, e-mail, 06.02.2010 01:42

The commenter named "seth hughes" cannot be referring to Howard Hughes, who had no children and was an only child himself. He had only couzins, none of whom were named Hughes. Most were named Lumis who inherited most of his estate. He needs to check his family tree a little closer, most of us at least know who our grandparents are.

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Chris, e-mail, 04.02.2010 18:20

You can not start to imagine the effect that this aircraft would have had if it went into production...

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seth hughes, 04.12.2008 09:08

the builder is my grandfather

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R., D. Carreirão, e-mail, 04.07.2008 23:20

I would like to know the airfoils profiles used in the wings of H-4 Hercules. Is it possible to know?

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Hamza, e-mail, 22.11.2022 R., D. Carreirão

Hughes H-4 Hercules

Wing-Root Airfoil: NACA 63(420)-321
Wing-Tip Airfoil: NACA 65(420)-415

Source: m-selig . ae . illinois . edu / ads / aircraft . html
(type it as a normal url without the spaces in the search bar)

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Joe Breslin, e-mail, 23.05.2008 22:52

Years ago I was fortunate enough to have the opportunity to sit in the pilots seat and man the controls. I wish I had been with the greatest airplane designer in the world when he took this wonderful plane up for a test flight. I'm with the DVHAA at NAS /JRB Willow Grove ,PA. We have a 1915 D-8 German fighter plane on display and I have to say that anyone who fought in that war was a very brave person whether American, French or German. No oxygen, no parashute, no fire control, only guts.

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Don Williams, e-mail, 19.05.2008 01:07

Are we sure it was powered by 4360's

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James Kadas, e-mail, 08.05.2008 00:12

I am a volunteer at the Museum and we are billed as the, Evergreen Aviation and Space Museum. Our Space Museum will open on 06 June 2008. It was Henry Kaiser who came to Hughes about building the Spruce Goose.

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1-20 21-40

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