Me nā limahana ʻoi aku ma mua o 150, ʻo Armstrong kahi hui ʻoihana a me nā ʻenehana loea o ka ʻōnaehana brake kaʻa.Kūleʻa mākou i nā huahana brake kaʻa ma luna o 23 mau makahiki, a loaʻa mau ka makemake i kēia ʻoihana.Hana mākou ma ko mākou kaulana a manaʻoʻiʻo e loaʻa ka kūleʻa inā mākou e hoʻomau i ko mākou maikaʻi.
Ua kālele mākou i ka ʻoihana friction material no nā makahiki ʻoi aku ma mua o 20, loaʻa ka ʻike hohonu o ka pā hope a me nā mea friction, a ua hoʻokumu pū i kahi ʻōnaehana makua a me lalo.