lllcich..:nt ,; lr) _ D UNCLp,_,j\r \E r c fleet,, cl I i.ght n~lvcr Hori 7.ontal fl i.ght about \lock apart lnc ic!o:-1t pODl.-Infor::.a ~ 2.nr~ 1 .sufficiont. to 0 'lYOll L'J re co .. c lu:;io:.s. J i tA.A. t "V L0o:1 c.~1 i llnr. io~ C'J.'..l::iJd. Dr HYNEK'S EVALUATIONS EXTRACTED FROM PRCJECT GRU:l~ REPOfiT. 1. .Atron0t1ioal l:iF',h prob h111tys }air or low 1'robntility1 Dall orHlt:s or o r d lr.e.ry n..\ ro rn.ft t c t , fl lB or fallinr, bcdiea:. Uitsoell tlll60\ (~1'le.~ions., a1rornl etr~kr~ns. bird, et .): Ltok of ~ld~noe p~Boludes expl~ tion1