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On a building footprint — height not tagged in the source
Building height ≈ 11 ft — measured independently of the FAA record
Cross-source consensus
Single independent source — no corroboration available
Cross-checked against independent public data — USGS 3DEP terrain, Overture/OSM building footprints, the federal hospital registry, and measured dimensions. The State of the U.S. Heliport Record →
eVTOL readiness
UNVERIFIEDConversion feasibility · four readings, one line each
Obstruction screen
No data
No FAA obstacle data on file for this state. Clearance unverified.
Geometry
Requires 40 feet of expansion
Recorded pad side 60 ft against a 100 ft eVTOL FATO.
Structural FATO
Unverified
The full 100 × 100 ft FATO must be load-bearing. The FAA does not record structural capacity, so no record can confirm it.
Overall
Unverified
No obstruction data on file. The dimensional gap applies; clearance is unverified.
The recorded pad is 40 ft short of the 100 ft footprint an eVTOL would need — shown to scale.
recorded pad eVTOL FATO
Recorded pad (limiting side)
60 ft
eVTOL FATO required
100 ft
FAA EB-105 vertiport pattern — 2× a ~50 ft eVTOL controlling dimension, plus a 125 ft safety-area side.
Load-bearing FATO
100 × 100 ft must be structural
No heliport precedent — typically the binding gate for rooftop and hospital pads.
Measured against FAA pad geometry and federal FATO sizing (EB-105). The obstruction screen is the only reading the engine verdict rests on; geometry and structural capacity are stated separately and never folded into it. A dimensional pre-screen — site-level validation required, and independent of the underwriting risk score.
NFPA 418 adoption status not yet assessed for this jurisdiction.
FAA facility data
FAA LID
N48
AIX ID
aix:hp:ZNZ6GXJ0
Lat / Lng
40.20205, -75.17823
Elevation
250 ft MSL
Pad dimensions
60 × 60 ft
Surface type
ASPH
Surface condition
GOOD
Activation date
1980/06
Last inspection
2025/06/18
Last owner update
1983/06/08
FAA OEAAA airspace determinations1
Airspace clearance
On file as archived / procedural records — no standing clearance to track.
Filing activity
Most recent determination 2014-03-10
NRAARCH-DeterminedASN 2014-AEA-216-NRA2014-05-13
Heliport · 0 ft AGL — De-Activate Heliport
Blueprint
The record vs. what we measured
93/100
DATA INTEGRITY
Surface elevation
The FAA record places this pad at 250 ft. USGS terrain plus the building put the actual rooftop at 277 ft — a +27 ft difference the federal record doesn’t carry.
eVTOL footprint
The 60 ft pad is 40 ft short of the 100 ft an eVTOL FATO requires (measured).
SIGNALFEDERAL RECORDMEASURED
Surface elevation250 ft277 ft · USGS+structure
Structurenot on recordOn a building
Pad dimensions60 ft side (filed)60 ft side · measured
Obstructions, exact FATO geometry, surface condition, and downwash exposure require a physical Ground Truth capture — not shown above as measured. A field verification completes the record and writes the measured truth to this facility’s authority.
This page is the public data-integrity record. The full RiskIndex assessment — Q1–Q5 compliance, dimensional / FATO analysis, an underwriting-grade risk score, peer benchmark, and a sealed Site Intelligence Report — is available on request.
HORSHAM VALLEY AIRWAYS INC, HORSHAM, PA (FAA N48). AirIndex facility record aix:hp:ZNZ6GXJ0. Verifiable at https://www.airindex.io/verify/aix:hp:ZNZ6GXJ0.