- Holder
- WSH, LLC
- Revision
- 6
- Revised
- June 11, 2026
- Status
- Current
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
- Models
- 2
- Registered
- 1 aircraft
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 2
| Model | Also known as | Note |
|---|---|---|
| UH-1F | Formerly Ranger Helicopter Services, Inc. · Bell Helicopter | |
| TH-1F |
Airworthiness directives · 0
ADs whose products are models on this data sheet, matched by model and maker.
No ADs matched this data sheet’s models
Registered aircraft
Registry models that point at this data sheet, with their registered aircraft.
STCs approved under this data sheet · 17
STC SR01349LAInstallation of Honeywell (Lycoming) T53-L-13B/-13BA engine to replace General Electric T58-GE-3 engine or T53-L-703 engine to replace Honeywell (Lycoming) T53-L-13B/-13BA engineSTC SR12332SEInstallation of Mechanical Specialties, LLC Human External Cargo (HEC) and non-HEC Hook SystemSTC SR00143DEInstallation of an upgraded 42 degree Tail Rotor gearbox, P/N 212-040-003
See all 17 STCsWhat the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
H7NE
Revision 6
WSH, LLC
UH-1F, TH-1F
June 11, 2026.
TYPE CERTIFICATE DATA SHEET NO. H7NE
This data sheet which is a part of type certificate Number H7NE, prescribes conditions and limitations under
which the product for which the type certificate was issued meets the airworthiness requirements of the
Federal Aviation Regulations.
TYPE CERTIFICATE HOLDER: WSH, LLC
3255 S. Bodenburg Loop
Palmer, AK 99645
TYPE CERTIFICATE HOLDER RECORD: Tamarack Helicopters, Inc.
P.O. Box 899
Victor, MT 59878-0899
Model UH-1F, TH-1F Approved (Restricted Category)
Engine General Electric T58-GE-3
Fuel JP-4, (Mil-T-5624); Jet A-1 (ASTM Type A-1)
JP-5 (Mil-T-5624G); Jet B (ASTM Type B)
Engine Limits Torque Output Exhaust Gas
Pressure Horsepower Gas Temp Gen Speed
(P.S.I.) (H.P.) (C) (R.P.M)
Take off (5 min) 67 1,100 690 102.5%
Continuous 54 888 635 Limited by EGT
Roto Limit Power off Power On
Maximum 339 r.p.m Maximum 317 r.p.m
Minimum 295 r.p.m Minimum 295 r.p.m
Airspeed Limits VNE (Never Exceed Speed) is 120 knots IAS at a gross weight of 7, 000 lbs., or
less, at sea level to 2, 000 feet density altitude, standard day. For reduction of
VNE and density altitude and weight, see Figure 5-2 of USAF T.O IH-1(U) F-1
(UH-1F) or Tamarack Flight Manual Number F-1 (TH-1F). For additional
airspeed limits see appropriate Rotorcraft Flight Manual.
Above 70 knots, 6,200 TI 6,450 Engine RPM required.
Page No. 1 2 3 4 5 6
Rev. No. 6 5 4 5 4 4
H7NE 2 of 6
C.G. Range LONGITUDINAL C.G. LIMITS
(+127.0) to (+132.0) to 9,000 lbs.
(+125.0) to (+135.6) to 7,450 lbs.
(+125.0) to (+138.0) to 6,500 lbs.
(+130.0) to (+138.0) to 4,500 lbs.
Maximum Weight: 9,000 lbs.
Minimum Crew 1
Maximum Baggage 400 lbs. in Tail Boom Compartment
Fuel Capacity 245 Gallons Total (3.0 unusable)
Oil System Capacity 5.4 Gallons Total (0.8 unusable)
Rotor Blade & Eligible Refer to USAF T.O. 1H-1(U)F-2-1
Serial Numbers Eligible See Tamarack Report Number SN-1 dated May 30, 2001, or later FAA approved
revision for a list of applicable rotorcraft serial numbers.
Datum 7.6 inches aft of aircraft nose
Leveling Means Drop plumb bob from “Key Hole” slot in upper left door still. Reference USAF T.O.
1H-1(U)F-5.
Certification Basis FAR 21.25(a)(2) effective February 1, 1965, including Amendments 21-1 through
21.42. Type Certificate Number H7NE for the purpose of.
1. Agricultural Operations under FAR 21.25(b)(1) for the purpose of spraying
dusting, seeding and livestock and predatory animal control.
E2WE 3 of 6
Note: In accordance with far 36.1(a)(4), compliance with the noise requirements
was not shown. Therefore, aircraft certificated under this type certificate are
only eligible for agricultural operations except FAR 36.1(a)(4), and defined
under FAR 137.3
2. Forget and Wildlife Conservation Operations under FAR 21.25(b)(2) for the
purpose of dispensing fire fighting materials and/or carrying external loads
Note: In accordance with FAR 36.1(a)(4), compliance with the noise
requirements was not shown. Therefore, aircraft certificated under this type
certificate are only eligible for dispensing fire fighting materials excepted by
FAR 36.1(a)(4) and defined under FAR 137.3.
3. External Load Operation under FAR 21.25(b)(7).
Note: In accordance with FAR 36.1(a)(4), compliance with the noise
requirements was not shown. Therefore, aircraft certificated under this type
certificate are only eligible for external loads operations excepted by FAR
36.1(a)(4) and defined under FAR 133.1(b)
General Note: Any alteration to the aircraft for Special Purposes not identified
above require further FAA approval and in addition may require noise and/or
flight testing.
Production Basis Note. No helicopter may be produced under this approval (See Notes 1 and 2).
Equipment The basic equipment required as prescribed in the applicable airworthiness
regulations (see certification basis) must be on each helicopter for certification. The
following documents must be available in each type of helicopter for certification.
1. A copy of the appropriate Flight Manual.
UH-1F: USAF: Flight Manual Number T.O. 1H-1(U) F-1, dated January 29,
1987, with Operation Supplement Number T.O. 1H-1(U) F-
1S-131, dated March 2, 1987.
TH-1F: Tamarack Flight Manual Number F-1, January 14, 2000, or
later FAA approved revision.
2. Current Weight and Balance Report (See NOTE 5).
1. Prior to civil certification, the following must be accomplished for each helicopter:
A. An FAA representative must perform an inspection for workmanship, material and conformity with the
approved technical data:
UH-1F: Ranger Report Number RHS-101, “Special Reconfiguration Build up”, dated March 3,
1993.
TH-1F: Tamarack Reconfiguration Report Number 101, dated May 8, 2000, or later FAA
approved revisions (includes a listing of applicable USAF Time Compliance Technical
Orders (TCTO) and assure that the applicant has conducted a satisfactory functional
flight check in accordance with USAF T.O. IH-1(U)F-6CF-1, dated April 30, 1986.
B. An FAA representative must verify that:
H7NE 4 of 6
UH-1F: 1) all inspections and modifications are accomplished by Ranger Helicopter
Services, Inc. UH-1F Technical Directives, dated July 6, 1992, or later approved
revisions, and
2) Compliance with all USAF TCTO’s and FAA Airworthiness Directives (AD)
applicable to Bell Helicopter Textron, Inc. 204/205 series helicopters, and
General Electric Model T58-GE-3 engine and any component installed thereon
are reviewed for applicability and complied with accordingly.
TH-1F: All applicable FAA ADs for the Bell Helicopter Textron, Inc. Model 204/205 series
helicopter and General Electric Model T58-GE-3 engine, and any components
installed thereon have been compiled with. Refer to Tamarack Report Number AD-
1, dated May 30, 2001, or later FAA approved revision, for a listing of applicable
airframe and engine Ads. Refer to Tamarack Report Number AD-2, dated April 28,
2000, for a listing of those 204/205 helicopter and General Electric Engine Ads that
are not applicable to the Tamarack Rotorcraft Designs. Refer to Tamarack Report
Number M-2, dated January 14, 2000, for a listing of applicable USAF TCTO’s
Refer to Tamarack Report Number M-3, dated January 14, 2000, for a listing of
non-applicable USAF TCTO’s.
C. In addition, each helicopter must pass an inspection for any possible hidden damage
and the military records reviewed for acceptability of any repairs or alterations.
D. The maintenance, overhaul, and modification records of each helicopter must be
reviewed for military changes that may affect the airworthiness of the helicopter.
E. After the required inspections, the aircraft must be found to be in a good state of
preservation, repair, and in a condition for safe operation.
2. This approval applies to:
A. Basic Surplus Military UH-1F and TH-1F helicopters with no modifications
except as required by:
UH-1F: Ranger Report Number RHS-101, “Special Reconfiguration
Build-up, “dated March 3, 1993.
TH-1F: Tamarack Reconfiguration, Report Number 101, dated May
2000, or later FAA approved revision.
B. Only those helicopters with USAF serial numbers listed in Tamarack Report
Serial Number -1, dated May 30, 2001, or later FAA approved revision.
3. Helicopters must be serviced, maintained, inspected, repaired and overhauled in
accordance with:
UH-1F: USAF T.O. 1H-1(U)F-2-1 “Organization Maintenance, “Change 14,
dated April 28, 1988, and T.O. 1H-1(U)F-6WC-2 and T.O.2J-T58-2WC-1.
Limited Life and Overhaul schedules for helicopter components are included in
USAF T.O. 1H-1(U)F-6.
Further, continued airworthiness of the UH-1F helicopters is contingent upon
compliance with all FAA AD’s applicable to Bell Helicopter Textron, Inc.,
Model T58-GE-3 engine and any component installed theron.
E2WE 5 of 6
TH-1F: The documents specified in Tamarack Instructions Continued
Airworthiness (ICA) Report Number ICA-1, dated February 4, 2000, or later
FAA approved revision. Report Number ICA-1 is a part of Tamarack’s ICA.
Limited Life and Overhaul schedules for helicopter components are included in
Tamarack ICA Number ICA-1, Section II.
Refer to Tamarack Report Number AD-1, dated May 30, 2001, or later FAA
approved revision, for a listing of applicable airframe and engine AD’s.
4. Helicopter will be operated in accordance with:
UH-1F: USAF T.O. 1H-1(U)F-1, dated January 29, 1987, with Operational
Supplement Number T.O. 1H-(U) F-1S-131, dated March 2, 1987.
TH-1F: Tamarack Flight Manual Number F-1 dated January 14, 2000, or later
FAA approved revision.
5. A current weight and balance report including a list of the equipment included in
the certificated empty weight, and loading instructions when necessary, must be
provided for each aircraft at the time of original certification and at all times
thereafter. Refer to USAF T.O. 1H-1(U)F-5, Change 7, dated December 12,
1985.
6. The following placards must be prominently displayed in the cockpit in full view
of the pilots:
Placard Number 1:
“THIS ROTORCRAFT MUST BE OPERATED IN ACCORDANCE WITH
THE RESTRICTED CATEGORY OPERATING LIMITATIONS OF FAR
91.313.”
Placard Number 2:
“THIS HELICOPTER MUST BE OPERATED IN COMPLIANCE WITH THE
OPERATING LIMITATIONS SPECIFIED IN THE APPROVED
ROTORCRAFT FLIGHT MANUAL.”
Placard Number 3:
“VFR OPERATIONS ONLY.”
7. This aircraft is prohibited from carrying cargo for compensation or hire. Carriage
of cargo is limited to cargo that is incidental to the aircraft’s owner/operator’s
business which is other than air transportation.
8. Restricted Category aircraft may not be operated in a foreign country without the
express written approval of that country.
9. This aircraft has not been shown to meet the requirements of the applicable
comprehensive and detailed airworthiness code as provided by Annex 8 to the
Convention on International Civil Aviation.
H7NE 6 of 6
10. Engine changes are allowed provided the replacement engine is of the same make
and model identified in the TCDS. The replacement engine must have proper
military records and have the applicable FAA Airworthiness inspection
accomplished.
---END---