I-Tarmac yaseSpain

Iphinifa, eliphezu kweSibhedlela i-Tres Cruces e-Bilbao, e-Spain, lingamamitha angu-3 futhi likwazi ukuhlalisa izindiza ezinophephela emhlane ezinesisindo esingamathani angu-6 (13,200 lbs). Impahla eyinhlanganisela ehlinzekwe yi-Spare ibifaneleka kahle ukuhlangabezana nezidingo zobuchwepheshe zokumelana nokugqwala, ukwakhiwa okungasindi, ukuphumelela kwezindleko, kanye nokuklama kalula. Impahla ifaka i-anti-slip coating enokumelana nokushelela okudlula ama-45 (isigaba 3).

Ngaphezu kwalokho, ngesisindo esingu-60 kg/m2 (12.3 lb/m2), okokusebenza kuziqhayisa ngesilinganiso esiphezulu samandla nesisindo uma kuqhathaniswa nezinye izinto ze-helipad. Imiphumela yokuhlolwa kwezinto ihlangabezana nezimfuneko ze-International Civil Aviation Organization (ICAO) ngesilinganiso somlilo esingu-M1.