Presumably FAA would have provided such information, but we do not know how long that would have taken, nor how long it would have taken NEADS to locate the target.
( ( ( ( ( Presumably ( FAA ( would ( have ( provided ( such information ) ) ) ) ) ) , ) but ) ( we ( ( do not ) ( know ( ( how long ) ( that ( would ( have ( ( ( taken , ) nor ) ( ( how long ) ( it ( would ( have ( ( taken NEADS ) ( to ( locate ( the target ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (S (S (ADVP (RB Presumably)) (NP (NNP FAA)) (VP (MD would) (VP (VB have) (VP (VBN provided) (NP (JJ such) (NN information)))))) (, ,) (CC but) (S (NP (PRP we)) (VP (VBP do) (RB not) (VP (VB know) (SBAR (WHADVP (WRB how) (RB long)) (S (NP (DT that)) (VP (MD would) (VP (VB have) (VP (VP (VBN taken)) (, ,) (CC nor) (VP (SBAR (WHADVP (WRB how) (RB long)) (S (NP (PRP it)) (VP (MD would) (VP (VB have) (VP (VBN taken) (NP (NNS NEADS)) (S (VP (TO to) (VP (VB locate) (NP (DT the) (NN target))))))))))))))))))) (. .)))
The time it would have taken for NEADS to locate the target is unknown.
( ( ( The time ) ( it ( would ( have ( ( taken ( for NEADS ) ) ( to ( locate ( the target ) ) ) ) ) ) ) ) ( ( is unknown ) . ) )
(ROOT (S (NP (NP (DT The) (NN time)) (SBAR (S (NP (PRP it)) (VP (MD would) (VP (VB have) (VP (VBN taken) (PP (IN for) (NP (NNP NEADS))) (S (VP (TO to) (VP (VB locate) (NP (DT the) (NN target))))))))))) (VP (VBZ is) (ADJP (JJ unknown))) (. .)))