PPRuNe Forums - View Single Post - Straight-Tapered Wings/Rhomboid Wings and Supersonic Flight
Old 9th February 2012 | 02:10
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Jane-DoH
 
Joined: Dec 2010
Posts: 414
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From: New York & California
Ken Parry

It would help if you could explain more of what you mean. Are you talking about L/D ratio, max lift, min structural weight, internal stowage volume, or something else? All those, and more, are design and performance considerations.
1.) Which wing produces better L/D ratios at Mach 0.6 to 0.9 at
  • Sea-level
  • 25,000 feet
  • 35,000 feet
A: A thin, straight, tapered-wing similar in plan-view to the X-3 or F-104?
B: A rhomboid-wing similar in plan-view to the F-23?

2.) Which wing produces better L/D ratios at Mach 0.90 to 1.2 at
  • Sea level
  • 25,000 feet
  • 35,000 feet
  • 45,000 feet
A: A thin, straight, tapered-wing similar in plan-view to the X-3 or F-104?
B: A rhomboid-wing similar in plan-view to the F-23?

3.) Which wing produces better L/D ratios at Mach 1.8 to 2.2 at
  • 35,000 feet
  • 45,000 feet
  • 55,000 feet
  • 65,000 feet
A: A thin, straight, tapered-wing similar in plan-view to the X-3 or F-104?
B: A rhomboid-wing similar in plan-view to the F-23?

4.) Which wing produces better L/D ratios at Mach 3.0 at
  • 60,000 feet
  • 65,000 feet
  • 75,000 feet
  • 110,000 feet
A: A thin, straight, tapered-wing similar in plan-view to the X-3 or F-104?
B: A rhomboid-wing similar in plan-view to the F-23?
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