I like ARCAS rockets (go figure) About to build one "standard" and one HV model, from fiberglass/wood/cardboard scraps I have around. I cannot find good scale data for either I am also not that concerned about the finer details, but would like to get the length/diameter ratio correct and fin shape correct, as well as an authentic looking paint job. Wikipedia has L/D for one of them but does not indicate if that is tubing length, or full length including the nose. I assume the latter but anyone know? Know if the HV is the same ratio? Do HV and "standard" have the same fin shapes?