▁and ▁stay ▁on ▁your ▁course ▁if ▁your ▁radio ▁isn ' t ▁working .' " ▁Of ▁ 3 0 ▁Curt iss ▁O - 1 G ▁Fal cons ▁built , ▁ten ▁were ▁ref itted ▁with ▁a ▁Curt iss ▁V - 1 5 7 0 ▁Con quer or ▁engine ▁and ▁co ck pit ▁can opy ▁and ▁red es ign ated ▁O - 3 9 s . ▁ 2 2 ▁February ▁" An ▁un ident ified ▁mail ▁pilot ▁was ▁reported ▁forced ▁down ▁in ▁the ▁vic inity ▁of ▁G os hen , ▁Ind ., ▁without ▁serious ▁m ish ap , ▁and ▁the ▁mail ▁was ▁forward ed ▁by ▁train ." ▁ 2 2 ▁February ▁F lying ▁the ▁U . S . ▁Mail , ▁Lieutenant ▁Charles ▁P . ▁H oll stein , ▁ ▁also ▁given ▁as ▁H oll este in , ▁" out ▁of ▁Cleveland ▁for ▁Washington , ▁was ▁forced ▁down ▁near ▁Union town , ▁Pa ., ▁in ▁a ▁heavy ▁fog . ▁His ▁plane ▁was ▁dam aged , ▁but ▁he ▁escaped ▁un sc athed ▁and ▁the ▁mail ▁was ▁saved , ▁according ▁to ▁reports ▁sent ▁to ▁Cleveland ▁air port ." ▁According ▁to ▁another ▁account , ▁he ▁" s uffer ed ▁super f icial ▁face ▁inj uries , ▁but ▁after ▁reporting ▁at ▁Union town , ▁walked ▁back ▁into ▁the ▁hills ▁to ▁his ▁plane ▁and ▁returned ▁with ▁the ▁mail ▁to ▁send ▁it ▁on ▁by ▁train . ▁ ▁He ▁had ▁been ▁fifty ▁miles ▁off ▁course ▁when ▁he ▁crash ed . ▁H oll stein ▁attributed ▁his ▁accident ▁to ▁a ▁fault y ▁radio ." ▁H oll