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Dec 16 • 9 tweets • 9 min read
#avgeek #aviation #RoyalNavy #aviationlovers – The remarkable Westland Wyvern naval strike airplane featured contra-rotating propellers and a mighty, behind-the-cockpit 3,200-hp Rolls Royce Eagle engine. This configuration allowed a cut down nose... 1/ ImageImageImageImage
2/ optimized for aircraft carrier naval aviation. 127 built, 1946–1951. Six W.34 prototypes↖️. 7 x TF.1 pre-production planes↗️ built in 1946. 9 x TF.2 ↙️↘️built in 1949. These used either a Rolls-Royce Clyde or 3,560 hp Armstrong Siddeley Python turbo-prop. ImageImageImageImage
3/ There was a single Westland Wyvern TF.3 two-seat trainer converted in 1950 from one of the previous aircraft. By the way, Wyvern was a legendary dragon. The definitive model was the TF.4, which was later renamed S.4. So what are TF and S (torpedo fighter? Strike?)? Image
3/ 98 x TF.4 ↖️↗️↙️built 1948-1951. Total all versions: 120; Fleet Air Arm service: 1954 to 1958. 68 accidents; 39 lost from flameout on catapult launch, combat, etc.; 13 fatalities. 4 × 20mm; 16 × RP-3 underwing rockets; 1 torpedo! Compare to smaller engined TF.1↘️. ImageImageImageImage
5/ I wish I'd found the TF.1 profile earlier to better explain the fuselage's evolution. Apologies for naming the above post "3/" a second time. Please note any errors, comments, etc. TY @clark_aviation for teaching me about this plane. Source: en.wikipedia.org/wiki/Westland_… Image
@clark_aviation 6/ It's fairly common for me to make a "gee, I wish I had a #TwitterEdit" typo, etc., in my threads, but I didn't even notice this huge one about the engine placement. Thank you @JmeDubya!
@clark_aviation @JmeDubya 7/ Okay, I think I finally have it. :) The prototypes had the mid-engine and thus smaller nose. So did the TF.1 as in this↖️ great photo from 1000aircraftphotos.com/Contributions/…. The TF.2↗️, TF.3↙️and TF.4↘️ all had the front-engine configuration. Is this correct? ImageImageImageImage
8/ If you enjoyed this thread, you might enjoy this short P-63 thread (28-photos including cockpit details)... The P-63 featured a mighty, behind-the-cockpit engine like the Westland Wyvern did to start with...
9/ So nope, not even my Westland Wyvern post 7/, above, was correct. I'm grateful to Jamie @JmeDubya for more on the matter. :)

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More from @USAS_WW1

USAS - History, Travel, Tech Profile picture
Dec 18
#Hurricane #USNavy #OTD: December 18, 1944, Admiral Halsey catastrophically orders the US Navy’s vaunted TF38 into #TyphoonCobra. TF38 has seven fleet carriers, eight battleships, ~60 light carriers, cruisers, and destroyers. In all, USA loses three... 1/ ImageImageImageImage
2/ destroyers on Dec. 18 killing 790 sailors. USS Iowa @ussiowa, CL Miami, etc., damaged. Light carriers Langley and Cowpens (above tweet) roll through 70 degrees, sending airplanes overboard or into each other, starting big fires. 146 aircraft lost!!! ImageImageImageImage
3/ In contrast, USA lost 123 aircraft in June 1944 Battle of the Philippine Sea. Destroyers Hull↖️, Monaghan ↗️ and Spence ↙️ sink. Maddox ↘️ and others are pounded but survive. 30 US Navy warships sunk or damaged total! #disasters #WW2 #Pacific #Weather ImageImageImageImage
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USAS - History, Travel, Tech Profile picture
Dec 18
#avgeek #aviation #USNavy #airplane - Vought OS2U Kingfisher; 1519 built starting 1938. Used by US Navy, Royal Navy, Royal Australian Air Force and the Soviet Navy. 450 hp; 1 x .30 cal (one fixed forward; one ring mounted in back) + bombs or depth charges. 1/ ImageImageImageImage
2/ OS=Observation Scout, U=Vought and 2=2nd plane by Vought for Observation Scout duty. Some had wheels vs floats. Were they convertible or built that way? OS2Us flew from land, naval air stations, or were catapult-launched off battleships, heavy cruisers or light cruisers. ImageImageImageImage
3/ OS2Us sat atop a launch car sled on the catapult. An electric motor turned the catapult 30 degrees off the bow as the ship sailed into the wind. A 5" smokeless powder charge rammed the car to 80 mph in .5 seconds, retention pins dropped and the plane was off! ImageImageImageImage
Read 9 tweets
USAS - History, Travel, Tech Profile picture
Dec 18
#PuertoRico #Castles #travelphotography #SanJuan: Castillo San Felipe del Morro / El Morro astonishes. It is a massive triangular fortress draped guarding the harbor. It may be the second largest fortress in the entire New World, second only to nearby Castillo San Cristobal. 1/ ImageImageImageImage
2/ #UNESCO El Morro five tiers of wedding cake #ramparts must soar up to 100 feet above the #ocean. The Spanish started construction in 1539. To enter, one crosses a splendid multi-acre lawn on the landward approach they deliberately cleared of all obstacles. ImageImageImageImage
3/ El Morro's original pierced windowless guard towers are named "garitas". (I use "margarita" as a mnemonic...). We also saw many 3' long iguanas: one on the giant exterior lawn and at least 10 more in the dry moat. They love eating the weeds/clovers. ImageImageImageImage
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USAS - History, Travel, Tech Profile picture
Dec 17
#Metz #France #travel - #NotreDame cathedral reveals itself at the end of a narrow street… It is beautiful Gothic architecture, with a mid-height central tower and two taller flanking transept towers much further at back. It’s all lit up at night. 1/ ImageImageImageImage
2/ #travel #France - #NotreDame of Paris caught on fire a few years ago. Here is another heartbreaking Notre Dame fire... but this is Metz in 1877... The other images show three other stages of evolution - two earlier and one now. #architecture ImageImageImageImage
3/ Metz is a remarkably beguiling town that enchants absolutely effortlessly. There is a large pedestrian-only expanse in the compact historical district that makes walking around a wonderful, pollution free, safe pleasure. Note Marshall Ney's statue↖️! ImageImageImageImage
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USAS - History, Travel, Tech Profile picture
Dec 17
December 17, 1903, 10:35 am, Orville Wright makes the world's first powered, controlled, sustained flight of a heavier-than-air aircraft flying 120 feet in 12 seconds (6.8 mph). #WrightBrothers #airplanes #avgeek #STEM 1/ Image
2/ It took place at Kill Devil Hills, Kitty Hawk, North Carolina. Though 700 miles via train, boat and foot from Wilbur and Orville Wright's Dayton, Ohio hometown, it offered excellent headwinds and near complete privacy as it was undeveloped and very hard to get to at the time. ImageImageImageImage
3/ They walked the Wright Flyer back to the runway, a 60' long wooden track. A skid had cracked, but they repaired it. Now at 11:00 am, Wilbur Wright↗️, 36, flew next, reaching 175 feet in 12 seconds. Next, Orville Wright↘️, 32, flew 200 feet in 15 seconds. ImageImageImageImage
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USAS - History, Travel, Tech Profile picture
Dec 17
If you like that Hawaii, California, Arizona, Texas are states, you'll also love it if beautiful #PuertoRico becomes a state. And I'm glad it's under discussion.🇵🇷🇵🇷🇵🇷 #StatehoodForPR independent.co.uk/tv/news/puerto…
2/ #travelbloggers #DiscoverPuertoRico #Love #Beauty - Here's stunning, romantic San Juan, Puerto Rico... I strongly recommend visiting it. You'll love doing so, and you'll help the local economy and wonderful people. Win-win!
3/ #maps #PuertoRico's population exceeds Utah, Iowa, Nevada, Arkansas, Mississippi, Kansas, New Mexico, Nebraska, West Virginia, Idaho, Hawaii, New Hampshire, Maine, Montana, Rhode Island, Delaware, South Dakota, North Dakota, Alaska, Vermont and Wyoming. ImageImageImageImage
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