▁trans p iration ▁heat sh ield , ▁before ▁a ▁para fo il ▁is ▁deployed ▁and ▁the ▁upper ▁stage ▁gl ides ▁down ▁in ▁a ▁horizontal ▁position ▁to ▁land ▁on ▁three ▁legs ; ▁two ▁extended ▁from ▁the ▁base ▁and ▁one ▁from ▁the ▁nose con e . ▁ ▁A ircraft - like ▁operations ▁A ▁much ▁desired ▁goal ▁for ▁space ▁launch ▁is ▁the ▁ability ▁to ▁put ▁material ▁and ▁people ▁into ▁orbit ▁with ▁the ▁same ▁reli ability ▁and ▁compar ative ▁cost ▁as ▁commercial ▁air ▁transport . ▁For ▁re usable ▁vehicles ▁the ▁desire ▁is ▁for ▁a ▁vehicle ▁that ▁oper ates ▁like ▁an ▁aircraft , ▁in ▁that ▁after ▁it ▁lands ▁you ▁only ▁need ▁to ▁ref uel ▁and ▁reload ▁it ▁in ▁order ▁to ▁fly ▁again . ▁The ▁Ro cket ▁Company ▁takes ▁the ▁idea ▁one ▁step ▁further , ▁and ▁propos es ▁that ▁the ▁vehicles ▁should ▁be ▁sold ▁like ▁commercial ▁vehicles , ▁under ▁the ▁same ▁export ▁rules ▁as ▁a ▁ 7 4 7 . ▁▁ ▁Once ▁purchased , ▁the ▁D H - 1 ▁would ▁operate ▁as ▁a ▁special ized ▁aircraft ▁that ▁can ▁be ▁used ▁as ▁often ▁or ▁as ▁rarely ▁as ▁the ▁customer ▁des ires , ▁similar ▁to ▁the ▁SR - 7 1 , ▁Air ▁Force ▁One , ▁or ▁a ▁U AV . ▁The ▁customer ▁would ▁not ▁be ▁bu ying ▁an ▁ability ▁to ▁launch ▁sat ell ites ▁so ▁much ▁as ▁a ▁complete ▁space ▁programme ▁for ▁less ▁than ▁$ 4 0 0 M ▁( including ▁facilities ▁and ▁D H - 1 ) ▁and ▁a ▁year ly ▁cost ▁of ▁under ▁$ 1 0 0 M .