Eurofighter relative flight performance, feat. Gero Finke - Page 9 - ED Forums
 


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Old 09-18-2020, 02:10 PM   #81
bbrz
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Quote:
Originally Posted by Hummingbird View Post
You are saying it has a higher landing AoA than the Hornet?

Where is the landing AoA specified for both under similar loadings?
F/A-18 ~8°
Typhoon ~13°

AoA doesn't vary a lot (if at all) due to weight.
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Old 09-18-2020, 02:31 PM   #82
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Quote:
Originally Posted by Hummingbird View Post
You are saying it has a higher landing AoA than the Hornet?

Where is the landing AoA specified for both under similar loadings?
Standard Typhoon AoA for landing is 13, standard landing AoA for Hornet is 8.1

Not the whole story, but it gives you an idea.

Edit: damn, too slow!
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Old 09-18-2020, 03:04 PM   #83
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High sweep/low aspect ratio wings have a flatter CL/Alpha curve, meaning they need more AoA to get a given CL value. the wing loading of the Typhoon reduces the Cl it needs, but in landing config a Hornet can generate a lot of Cl for very little alpha. low sweep angle, higher aspect ratio, full span LEF and TEF, high chord % TEF (compared to a Typhoon).
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Old 09-18-2020, 11:11 PM   #84
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Originally Posted by Steph21 View Post
Standard Typhoon AoA for landing is 13, standard landing AoA for Hornet is 8.1

Not the whole story, but it gives you an idea.

Edit: damn, too slow!
Yeah, so the biggest part of the explanation for that is the extremely high wing camber the Hornet generates with it's enormous slotted landing flaps drastically reducing the AoA needed for a certain Cl (critical AoA goes down as well). However as the airframe AoA needed goes down the chord line angle vs wind actually goes up = which is the effect of TE flaps.
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By comparison the Typhoon, due to its very low wing loading, doesn't need to make use of any high lift devices for landing, and as such the relative landing AoA is going to be a little higher:
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Last edited by Hummingbird; 09-19-2020 at 10:26 AM. Reason: added a slightly more in depth explanation
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