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#1
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Why Is the S-3 Viking Called a Hoover?
Because the unique sound made by the engines resembles a Hoover vacuum
cleaner to some. My wife and I were walking the beach near the Hotel Del in 1998 when a Viking flew overhead on approach to NAS North Island, San Diego. You can hear the strange sound in this video. Enjoy! http://www.youtube.com/watch?v=4FRJfBW_GQI |
#2
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Why Is the S-3 Viking Called a Hoover?
Will Deatrick wrote: Because the unique sound made by the engines resembles a Hoover vacuum cleaner to some. My wife and I were walking the beach near the Hotel Del in 1998 when a Viking flew overhead on approach to NAS North Island, San Diego. You can hear the strange sound in this video. Enjoy! http://www.youtube.com/watch?v=4FRJfBW_GQI "Because the dirtbags are on the inside." v/r Gordon Formerly VS-31 Topcat |
#3
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Why Is the S-3 Viking Called a Hoover?
There's a secondary reason why it's lovingly referred to as a Hoover.
The ducted fan TF-34's are located very close to the deck. At full power, they will suck just about any FOD into the duct. Just like a vacuum cleaner. However, the nickname came from the sound of the TF-34's on startup. Regards, On Fri, 01 Dec 2006 19:57:19 -0800, Will Deatrick wrote: Because the unique sound made by the engines resembles a Hoover vacuum cleaner to some. My wife and I were walking the beach near the Hotel Del in 1998 when a Viking flew overhead on approach to NAS North Island, San Diego. You can hear the strange sound in this video. Enjoy! http://www.youtube.com/watch?v=4FRJfBW_GQI |
#4
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Why Is the S-3 Viking Called a Hoover?
I've never heard the TF-34 starting up. Does it make that same
thrumming sound in the video, or is it a different sound altogether? And thanks for the info on the engines being so close to the deck :-) Will In article , Charlie Wolf wrote: There's a secondary reason why it's lovingly referred to as a Hoover. The ducted fan TF-34's are located very close to the deck. At full power, they will suck just about any FOD into the duct. Just like a vacuum cleaner. However, the nickname came from the sound of the TF-34's on startup. Regards, On Fri, 01 Dec 2006 19:57:19 -0800, Will Deatrick wrote: Because the unique sound made by the engines resembles a Hoover vacuum cleaner to some. My wife and I were walking the beach near the Hotel Del in 1998 when a Viking flew overhead on approach to NAS North Island, San Diego. You can hear the strange sound in this video. Enjoy! http://www.youtube.com/watch?v=4FRJfBW_GQI |
#5
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Why Is the S-3 Viking Called a Hoover?
WoooooooOOOOOOOOOP.........steady background thrum, repeat as
necessary |
#6
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Why Is the S-3 Viking Called a Hoover?
BTW, in two years in VS-31, we never FOD'd an engine due to debris being sucked up into the intake. In fact, the S-3 had very few such incidents over the years and far fewer than other a/c such as the A-7. As a high bypass turbofan, the S-3 had far less suction than turbojet-powered aircraft. I spent quite a bit of time between the cats on the Eisenhower and some on the Midway and the supposition that Vikings were more prone to FOD than other carrier aircraft is, no offense, just plain wrong. The only reason the Vikings were called Hoovers was that distinctive noise. v/r Gordon |
#7
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Why Is the S-3 Viking Called a Hoover?
Well, I hate to disagree with you, but I remember many incidents of
FOD'd engines on S-3's (I have 1600 hours in them). On one occasion, we flew into Warminster PA and the engine got FOD on touch down on the runway. By the time we taxied up to the hangar area, #1 was nearly fully engulfed in flames. We came very near to a strike A/C on that one. Riding in the back seats, I recall many instances of seeing things sucked up at high power on the deck (including birds in flight). I also saw many instances of damaged fan blades form FOD. That being said, you are correct about one thing. Because the TF-34 is a high-bypass turbofan configuration, just because an object is sucked into the fan duct, doesn't necessarily mean it will ingest in the engine intake. That's the big difference between an S-3 and and an A-7 sucking something up. Regards, On 8 Dec 2006 17:30:39 -0800, "Gordon" wrote: BTW, in two years in VS-31, we never FOD'd an engine due to debris being sucked up into the intake. In fact, the S-3 had very few such incidents over the years and far fewer than other a/c such as the A-7. As a high bypass turbofan, the S-3 had far less suction than turbojet-powered aircraft. I spent quite a bit of time between the cats on the Eisenhower and some on the Midway and the supposition that Vikings were more prone to FOD than other carrier aircraft is, no offense, just plain wrong. The only reason the Vikings were called Hoovers was that distinctive noise. v/r Gordon |
#8
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Why Is the S-3 Viking Called a Hoover?
Charlie Wolf wrote: Well, I hate to disagree with you, but I remember many incidents of FOD'd engines on S-3's (I have 1600 hours in them). On one occasion, we flew into Warminster PA and the engine got FOD on touch down on the runway. By the time we taxied up to the hangar area, #1 was nearly fully engulfed in flames. We came very near to a strike A/C on that one. Riding in the back seats, I recall many instances of seeing things sucked up at high power on the deck (including birds in flight). I also saw many instances of damaged fan blades form FOD. Last thing I want to do is get in an argument with you, Charlie - and you're right, we had fan damage on occasion that I should have recalled. I never heard of that Warminster incident, sounds like you had a wild ride! Glad you made it to share the story. That being said, you are correct about one thing. Because the TF-34 is a high-bypass turbofan configuration, just because an object is sucked into the fan duct, doesn't necessarily mean it will ingest in the engine intake. That's the big difference between an S-3 and and an A-7 sucking something up. That's what I meant, without saying it well - sorry about that. The actual intake on the TF 34 is pretty dang small in relation to the size of that giant fan in front of it - there were certainly incidents of the bypass fan getting dinged. I should have said it this way: in my squadron, there were far less FOD incidents than the other squadrons on Ike. Damage to the blades was never a good thing, but the TF 34 seemed a lot more resistant to ingestion than the other types in service at the time. v/r Gordon |
#9
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Why Is the S-3 Viking Called a Hoover?
Agreed. Thanks Gordon.
Regards, On 11 Dec 2006 09:18:45 -0800, "Gordon" wrote: Charlie Wolf wrote: Well, I hate to disagree with you, but I remember many incidents of FOD'd engines on S-3's (I have 1600 hours in them). On one occasion, we flew into Warminster PA and the engine got FOD on touch down on the runway. By the time we taxied up to the hangar area, #1 was nearly fully engulfed in flames. We came very near to a strike A/C on that one. Riding in the back seats, I recall many instances of seeing things sucked up at high power on the deck (including birds in flight). I also saw many instances of damaged fan blades form FOD. Last thing I want to do is get in an argument with you, Charlie - and you're right, we had fan damage on occasion that I should have recalled. I never heard of that Warminster incident, sounds like you had a wild ride! Glad you made it to share the story. That being said, you are correct about one thing. Because the TF-34 is a high-bypass turbofan configuration, just because an object is sucked into the fan duct, doesn't necessarily mean it will ingest in the engine intake. That's the big difference between an S-3 and and an A-7 sucking something up. That's what I meant, without saying it well - sorry about that. The actual intake on the TF 34 is pretty dang small in relation to the size of that giant fan in front of it - there were certainly incidents of the bypass fan getting dinged. I should have said it this way: in my squadron, there were far less FOD incidents than the other squadrons on Ike. Damage to the blades was never a good thing, but the TF 34 seemed a lot more resistant to ingestion than the other types in service at the time. v/r Gordon |
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