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Atlas / TCDS / 6H2

FAA · Type Certificate Data Sheet

TCDS 6H2

Siam Hiller Holdings Inc.

Historical Aircraft Rotorcraft Rev 19 10/28/2014 drs.faa.gov ↗

Models covered (2)

Former holders

  • Hiller Aviation

Fleet view · 75 registered tails

Engineering specs aggregated from the FAA Aircraft Registry — what every actually-flying tail under this TCDS reports. Median + 10th–90th-percentile range across the active fleet.

Seats

4

n=75

Horsepower

210

200–240

Cruise (kts)

63

63–63

Year of mfr

1955

1942–1973

Engines on the type, by tail count

  • FRANKLIN 6V4 SERIES 21
  • FRANKLIN 6V-335 SERIES 13
  • FRANKLIN 6VS-335 SER 11
  • FRANKLIN 6A&6V335 SER 9
  • FRANKLIN 6V 350 SERIES 6
  • AMA/EXPR UNKNOWN ENG 5
  • FRANKLIN 6V6 SERIES 1
  • FRANKLIN O-335 1

NTSB events

61

across all model variants

Applicable ADs

10

FAA airworthiness directives

Per-tail rate

0.81 events / tail · 0.13 ADs / tail

The TCDS PDF on drs.faa.gov is the authoritative document for design-as-certified weight limits, performance, equipment, AD compliance times, and operating limitations. Open on drs.faa.gov ↗ DRS frequently breaks — when it does, the fleet view above and the cross-links below are usually what you actually need.