The definition of the Shuttle Tethered Aerothermodynamic Research Facility

1985 
S t u d i e s h a v e been c o n d u c t e d t o d e f i n e t h e f e a s i b i l i t y and p r a c t i c a l l i m i t a t i o n s o f t h e S h u t t l e O r b i t e r T e t h e r e d " w i n d t u n n e l " c o n c e p t . T h i s c o n c e p t , r e f e r r e d t o a s t h e S h u t t l e T e t h e r e d Aero thermodynamic R e s e a r c h F a c i l i t y (STARFAC) , is p r o p o s e d t o p r o v i d e r e s e a r c h e r s a c c e s s t o a l t i t u d e s above 90 lan t o a c c o m p l i s h a e r o t h e r m o d y n a m i c r e s e a r c h i n t h e r a r e f i e d u p p e r a t m o s p h e r e . D e t e r m i n i n g t h e f e a s i b i l i t y and l i m i t a t i o n s of t h e c o n c e p t h a s r e q u i r e d t h e enhancement a n d / o r d e v e l o p m e n t o f m i s s i o n s i m u l a t i o n a n a l y t i c a l t e c h n i q u e s and c o n t r o l l a w s ; t h e a c c o m p l i s h m e n t o f c a n d i d a t e m i s s i o n s i m u l a t i o n s ; t h e d e f i n i t i o n o f i n s t r u m e n t a t i o n r e q u i r e m e n t s , b o t h f o r s c i e n c e and e n g i n e e r i n g ; and t h e e s t a b l i s h m e n t of t e t h e r and s a t e l l i t e d e s i g n r e q u i r e m e n t s t o meet STARFAC o b j e c t i v e s . The r e s u l t s o f t h e s t u d y , t o d a t e , i n d i c a t e t h a t such a c o n c e p t is b o t h f e a s i b l e a n d p r a c t i c a l . R e p r e s e n t a t i v e r e s u l t s a r e p r e s e n t e d , a s a r e recommendat ions f o r c o n t i n u e d s t u d i e s which would r e s u l t i n program i m p l e m e n t a t i o n . N o m e n c l a t u r e A f r o n t a l a r e a , m 2 CD d r a g c o e f f i c i e n t , nd h a l t i t u d e , lan Kn Knudsen number, nd LID l i f t t o d r a g r a t i o , nd
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