HpfSpdAlt

Speed range and altitude combinations defining holding altitudes for specific speed ranges at each holding pattern

Source: NASRTable: HPF_SPD_ALTVersion: e25086c3e952 (effective 2026-04-16)

Ordered by HP_NAME, HP_NO, SPEED_RANGE, ALTITUDE. The combination of HP_NAME, HP_NO, SPEED_RANGE, and ALTITUDE forms the unique record key.

Example query

# Introspect the HpfSpdAlt type in GraphiQL at https://api.nav.sortie.co/graphql
# Example shape (pair with a compatible root query field):
{
  # ...rootQuery... {
    effDate
    hpName
    hpNo
    stateCode
  # }
}

Run at https://api.nav.sortie.co/graphql — GraphiQL is available in-browser.

Fields (7)

Field	Type	Description	Units	Enum
effDate ← EFF_DATE	String	The 28 Day NASR Subscription Effective Date in format YYYY/MM/DD
hpName ← HP_NAME	String	Holding Pattern Identifier formatted as NAVAID_NAME FACILITY_TYPESTATE_CODE or FIX_NAME FIX_TYPESTATE_CODE*ICAO_REGION_CODE
hpNo ← HP_NO	HpNo	Pattern Number to Uniquely Identify Holding Pattern		10 values 1 — Pattern 1 2 — Pattern 2 3 — Pattern 3 4 — Pattern 4 5 — Pattern 5 6 — Pattern 6 7 — Pattern 7 8 — Pattern 8 9 — Pattern 9 10 — Pattern 10
stateCode ← STATE_CODE	FixBaseStateCode	Associated State Post Office Code, standard two letter abbreviation for US States and Territories		61 values AK — Alaska AL — Alabama AR — Arkansas AS — American Samoa AZ — Arizona CA — California CO — Colorado CT — Connecticut DC — District of Columbia DE — Delaware FL — Florida GA — Georgia GU — Guam HI — Hawaii IA — Iowa ID — Idaho IL — Illinois IN — Indiana KS — Kansas KY — Kentucky LA — Louisiana MA — Massachusetts MD — Maryland ME — Maine MI — Michigan MN — Minnesota MO — Missouri MP — Northern Mariana Islands MS — Mississippi MT — Montana NC — North Carolina ND — North Dakota NE — Nebraska NH — New Hampshire NJ — New Jersey NM — New Mexico NV — Nevada NY — New York OA — Pacific Ocean Area OG — Gulf of Mexico Area OH — Ohio OK — Oklahoma OP — Pacific Ocean Area OR — Oregon PA — Pennsylvania PR — Puerto Rico QM — Atlantic Ocean Area QW — Atlantic Ocean Area West RI — Rhode Island SC — South Carolina SD — South Dakota TN — Tennessee TX — Texas UT — Utah VA — Virginia VI — Virgin Islands VT — Vermont WA — Washington WI — Wisconsin WV — West Virginia WY — Wyoming
countryCode ← COUNTRY_CODE	HpfBaseCountryCode	Country Post Office Code		8 values AS — American Samoa BS — Bahamas CA — Canada FM — Federated States of Micronesia MH — Marshall Islands MP — Northern Mariana Islands PW — Palau US — United States
speedRange ← SPEED_RANGE	SpeedRange	Speed range in knots for which the associated holding altitude applies. Values may represent a single speed or a range in the format lower/upper.	knots	27 values 100 — 100 knots 17/60 — 17 to 60 knots 170 — 170 knots 170/175 — 170 to 175 knots 175 — 175 knots 175/200 — 175 to 200 knots 19/60 — 19 to 60 knots 20/60 — 20 to 60 knots 200 — 200 knots 200/230 — 200 to 230 knots 200/265 — 200 to 265 knots 200/310 — 200 to 310 knots 210 — 210 knots 210/310 — 210 to 310 knots 230 — 230 knots 230/265 — 230 to 265 knots 230/310 — 230 to 310 knots 265 — 265 knots 265/310 — 265 to 310 knots 27/27 — 27 knots 280 — 280 knots 300 — 300 knots 310 — 310 knots 360 — 360 knots 90 — 90 knots 90/310 — 90 to 310 knots ALL — All speed ranges
altitude ← ALTITUDE	String	Holding altitude for the associated speed range of record	feet MSL