7-By 10-Foot Tunnel Talk (1949) - NASA · 7-By 10-Foot Tunnel Talk (1949) Subject: 7-By 10-Foot Tunnel Talk \(1949\) Keywords: Langley Aeronautical Laboratory, Inspection, NACA, Tunnels,

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THE 7-BY 10-FOOT WIND TUNNELS

WING CONFIGURATIONS

ASPECT DATIO 4 TAPEA AATIO .6

NACA 65A006

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35°

45°

60°

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~ LAL 61108

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WING LIFT EFFECT OF STAB. ANGLE %=80 LBfsQ FT ALT= 36,000 FTASPECT RATIO 4

TAPER RATIO .6 Al~F"OIL 65A006

35° LIFT SLOPE

CL ct EXP. l . •~ ' 2 TTHEORY ~O'

T.E. STAB.--+--::~\ T.E.DN--1-- UP

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~ LAL 61109

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EFFECT OF TAIL HEIGHT EFFECT OF TAIL HEIGHT ASPECT RATIO= 4o/s=60 LYsQ FT ALT= 36~000 FT

AcA, =400

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STAB. LOW TAIL ANGLE

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T.E. I I

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CL

~ LAL 61110

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YAWING MOMENT PREDICTION ASPECT RATIO 4

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EFFECT OF FIN LOCATION

YAW.MOMENT IN ~OLL, Cnp

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LIFT COEFFICIENT

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Cnp EFFECT ON TIME TO DAMP Wfs =SOLB/SQ FT CL=.15

20.000 FT ALT

TIME TO DAMP

UNSATISFACTORY

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0 PERIOD

~ LAL 61112