Black Horse...
Hi All
Hydrogen Peroxide was considered to be a good option for the Black Horse propellant-transfer mode of operation, burning with JP-5 instead of RP-1, and being a bit cheaper and easy to tank (no cryogenics) than LO2. Only down-side was the lack of available commercial rocket engines burning it. Isp was only a bit lower than LOX+RP-1.
Hmmm... I thought the Russkies used it in Buran's OMS with kerosene.
Adam