▁un related ▁to ▁the ▁ 1 9 4 2 ▁project ▁for ▁a ▁tw in - p ist on - eng ined ▁high - speed ▁bom ber ▁aircraft , ▁but ▁similarly ▁named ▁P . 1 3 . ▁ ▁Spec ifications ▁( P . 1 3 a , ▁as ▁designed ) ▁ ▁Rep lic as ▁▁ ▁There ▁is ▁a ▁non - function ing ▁rep lica ▁at ▁the ▁Military ▁A viation ▁Museum ▁in ▁Virginia ▁Beach , ▁Virginia ▁located ▁in ▁the ▁C ott bus ▁hang ar ▁ ▁See ▁also ▁ ▁Notes ▁ ▁References ▁ ▁External ▁links ▁ ▁Luft ▁ 4 6 ▁Article ▁on ▁the ▁P . 1 3 a ▁Li pp isch ▁P 1 3 a ▁ ▁YouTube ▁- ▁Sup erson ic ▁Ram jet ▁F ighter ▁foot age ▁Model ▁of ▁the ▁P . 1 3 a ▁Nur fl ugel ▁- ▁Spec ifications , ▁Sk etch es ▁ ▁Category : 1 9 4 0 s ▁German ▁experimental ▁aircraft ▁Category : R am jet - power ed ▁aircraft ▁Category : T a ill ess ▁delta - wing ▁aircraft ▁Category : Ab andon ed ▁military ▁aircraft ▁projects ▁of ▁Germany ▁P . 1 3 a ▁Category : Co al ▁in ▁Germany <0x0A> </s> ▁In ▁chem istry , ▁an ▁ox oc ar bon ▁an ion ▁is ▁a ▁negative ▁ion ▁consisting ▁sole ly ▁of ▁carbon ▁and ▁o xygen ▁atoms , ▁and ▁therefore ▁having ▁the ▁general ▁formula ▁ ▁for ▁some ▁integers ▁x , ▁y , ▁and ▁n . ▁ ▁The ▁most ▁common ▁ox oc ar bon ▁an ions ▁are ▁carbon ate , ▁, ▁and