Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  N'ụbọchị mbụ ya, a gwara Armstrong ka ọ na-anya ụgbọelu ndị na-achụ nta n'oge a na-ebupụta ụgbọelu ndị e ji eme nnyocha site n'ụgbọelu ndị na-atụ bọmbụ a gbanwere agbanwe. Ọ na-efepụkwa ụgbọelu ndị na-atụ bọmbụ ndị a gbanwere agbanwe, n'otu n'ime ọrụ ndị a, o nwere ihe mberede ụgbọelu mbụ ya na Edwards. Na Machị 22, 1956, ọ nọ n'ụgbọelu Boeing B-29 Superfortress, nke ga-ebufe Douglas D-558-2 Skyrocket. Ọ nọdụrụ n'oche aka nri nke onye na-anya ụgbọ elu mgbe onye isi oche aka ekpe, Stan Butchart, na-efe B-29. Ka ha rịgoro 30,000 ụkwụ (9 km), injin nke anọ kwụsịrị na propela malitere ikuku ikuku (na-agbagharị n'efu) na ikuku. Mgbe Butchart kụrụ ihe ga-eme ka propela ahụ kwụsị ịgbagharị, ọ chọpụtara na ọ na-agbagharị nwayọọ nwayọọ, ma ọ maliteghachiri ịgbagharị, na nke ugbu a, ọ na-agbagharị ngwa ngwa karịa ndị nke ọzọ; ọ bụrụ na ọ na-agbagharị ngwa ngwa, ọ ga-agbaji. Ụgbọelu ha kwesiri ijide ọsọ nke 210 mph (338 km/h) iji bulie Skyrocket ya, na B-29 enweghị ike ịdata na Skyrocket jikọtara ya na afọ ya. Armstrong na Butchart tinyere ụgbọelu ahụ n'ọnọdụ ihu ala iji mee ka ọ na-agba ọsọ, wee malite Skyrocket. N'oge a na-ebupụ ya, propela nke injin nke anọ gbawara. Akụkụ ya mebiri injin nke atọ ma kụọ injin nke abụọ. A manyere Butchart na Armstrong ka ha mechie injin nke atọ mebiri emebi, tinyere injin nke mbụ, n'ihi torque o mepụtara. Ha mere nwayọ, na-agba gburugburu site na 30,000 ft (9 km) na-eji naanị ọnụọgụ ọnụọgụ abụọ, wee daa n'enweghị nsogbu. Armstrong jere ozi dị ka onye na-anya ụgbọelu na Century Series fighters, gụnyere North American F-100 Super Sabre A na C variants, McDonnell F-101 Voodoo, Lockheed F-104 Starfighter, Republic F-105 Thunderchief na Convair F-106 Delta Dart. Ọ na-efegharịkwa Douglas DC-3, Lockheed T-33 Shooting Star, North American F-86 Sabre, McDonnell Douglas F-4 Phantom II, Douglas F5D-1 Skylancer, Boeing B-29 Superfortress, Boeing B-47 Stratojet na Boeing KC-135 Stratotanker, ma bụrụ otu n'ime ndị ọkwọ ụgbọ elu asatọ na-arụ ọrụ na ụgbọ elu nyocha Parasev paraglider...  Ajụjụ: Ònye duziri ụgbọelu ndị na-achụ nta n'ụbọchị mbụ?
Armstrong