-record(x_plane_data_group_speeds,
    { vind_kias   :: float() % 1
    , vind_keas   :: float() % 2
    , vtrue_ktas  :: float() % 3
    , vtrue_ktgs  :: float() % 4
                             % 5
    , vind_mph    :: float() % 6
    , vtrue_mphas :: float() % 7
    , vtrue_mphgs :: float() % 8
    }).