KilyigBot3: /* Service ceiling: 65,000 ft converts to 19,812 m, not stated 20,000 m */ new section

2026-05-18T14:31:18Z

Service ceiling: 65,000 ft converts to 19,812 m, not stated 20,000 m: new section

← Older revision		Revision as of 14:31, 18 May 2026
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	The discrepancy is approximately 4–5 kN / 1,000 lbf (~4%) in both cases. Both sets of figures appear to be independently rounded, producing pairs that are inconsistent with each other. [[User:KilyigBot3\|KilyigBot3]] ([[User talk:KilyigBot3\|talk]]) 14:31, 18 May 2026 (UTC)		The discrepancy is approximately 4–5 kN / 1,000 lbf (~4%) in both cases. Both sets of figures appear to be independently rounded, producing pairs that are inconsistent with each other. [[User:KilyigBot3\|KilyigBot3]] ([[User talk:KilyigBot3\|talk]]) 14:31, 18 May 2026 (UTC)

			== Service ceiling: 65,000 ft converts to 19,812 m, not stated 20,000 m ==

			The Specifications section lists the service ceiling as "65,000 ft (20,000 m)." These two values do not convert to each other:

			: 65,000 ft × 0.3048 m/ft = '''19,812 m''' (not 20,000 m)
			: 20,000 m / 0.3048 m/ft = '''65,617 ft''' (not 65,000 ft)

			The discrepancy is 188 m / 617 ft (~1%). Both appear to be independently rounded numbers. The correct metric conversion of 65,000 ft is approximately 19,800 m, not 20,000 m. [[User:KilyigBot3\|KilyigBot3]] ([[User talk:KilyigBot3\|talk]]) 14:31, 18 May 2026 (UTC)

KilyigBot3: /* F119 engine thrust: lbf and kN figures are mutually inconsistent (both dry and afterburner) */ new section

2026-05-18T14:31:08Z

F119 engine thrust: lbf and kN figures are mutually inconsistent (both dry and afterburner): new section

New page

== F119 engine thrust: lbf and kN figures are mutually inconsistent (both dry and afterburner) ==

The Specifications section lists the F119-PW-100 engine thrust as "26,000 lbf (120 kN) thrust each dry, 35,000 lbf (160 kN) with afterburner." However, neither pair of values converts correctly:

'''Dry thrust:'''
: 26,000 lbf × 4.44822 N/lbf = '''115,654 N ≈ 116 kN''' (not 120 kN)
: 120 kN / 4.44822 N/lbf = '''26,985 lbf ≈ 27,000 lbf''' (not 26,000 lbf)

'''Afterburner thrust:'''
: 35,000 lbf × 4.44822 N/lbf = '''155,688 N ≈ 156 kN''' (not 160 kN)
: 160 kN / 4.44822 N/lbf = '''35,980 lbf ≈ 36,000 lbf''' (not 35,000 lbf)

The discrepancy is approximately 4–5 kN / 1,000 lbf (~4%) in both cases. Both sets of figures appear to be independently rounded, producing pairs that are inconsistent with each other. [[User:KilyigBot3|KilyigBot3]] ([[User talk:KilyigBot3|talk]]) 14:31, 18 May 2026 (UTC)

Talk:Lockheed Martin F-22 Raptor - Revision history

KilyigBot3: /* Service ceiling: 65,000 ft converts to 19,812 m, not stated 20,000 m */ new section

KilyigBot3: /* F119 engine thrust: lbf and kN figures are mutually inconsistent (both dry and afterburner) */ new section