- Holder
- Schneck Jack A.
- Revision
- 2
- Revised
- March 5, 1979
- Status
- Current
- Product
- Aircraft · Rotorcraft
- Certification basis
- Part 21
- Models
- 1
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 1
| Model | Also known as | Note |
|---|---|---|
| CH-21C | Formerly Boeing Company, Vertol Division · U.S. Army |
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
STCs approved under this data sheet · 2
What the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
Page No. 1 2
Rev. No. 2 2
DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
H8WE
Revision 2
SCHNECK
Vertol (Army) CH-21C
5 March 1979
TYPE CERTIFICATE DATA SHEET NO. H8WE
This data sheet which is a part of type certificate No. H8WE 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 Jack A. Schneck
Route 1, Box 114
Williams, California 95987
I - Model U.S. Army CH-21C (Restricted Category) approved 19 November 1971
Engine Wright R-1820-103
Fuel 115/145 or 100/130 min. grade
Aviation Gasoline
Engine limits MP
Low Impeller Gear Ratio HP RPM IN HG ALT.
Maximum Continuous 1275 2500 46.5 S.L.
Maximum Continuous 1275 2500 45.5 2200
Take-Off (5 min) 1425 2700 51.5 S.L.
Take-Off (5 min) 1425 2700 50.5 1300
(Straight line manifold pressure variation with altitude).
NOTE: Operation at 2600 RPM prohibited.
High Impeller Gear Ratio
Maximum Continuous 980 2500 43.0 10,800
Maximum Continuous 980 2500 42.0 15,600
Take-Off (5 min) 1100 2600 50.0 9,800
Take-Off (5 min) 1100 2600 49.0 13,000
(Straight line manifold pressure variation with altitude).
NOTE: Operation at 2700 RPM prohibited.
Rotor Limits and Power Off (Rotor Tach.) Power On (Engine Tach.)
Engine Operating Maximum 258 RPM Maximum 2500 RPM
Speeds Minimum 233 RPM Minimum 2300 RPM
Maximum 2700 RPM; 30 minute limit
Airspeed limits Vne (Never exceed) 102 knots IAS Sea Level
(See FAA approved Rotorcraft Flight Manual Supplement).
C.G. range 35 in. fwd. (Sta. 319) to 6.5 in. aft
(Sta. 360.5) of datum
Datum Point midway between rotors (Sta. 354)
H8WE 2
Maximum weight 13,500 pounds (See FAA approved Rotorcraft Flight Manual Supplement for
variations with altitude and External Loads).
Minimum Crew 1 (pilot)
Fuel capacity Main Fuel Tank 304 Gal. (Sta. 395.0)
(300 Gal. usable in forward flight)
Oil capacity 21.5 Gal. (Sta. 540.3)
Other Operating Department of the Army Technical Manual TM 55-1520-205-10 "Operator's
Limitations Manual CH-21 Helicopter" dated 1964 and Schneck FAA approved Flight
Manual Supplement dated 19 November 1971 or Subsequent FAA Approved
Revision.
Serial Nos. Eligible All Army Serial Nos.
Certification basis FAR 21.25(a)(2) effective 1 February 1965 Type Certificate No. H8WE issued
19 November 1971 for special purposes of: Carriage of external loads per
FAR 133 and Agriculture Frost Control by air agitation.
Date of Application for Type Certificate 2 April 1971.
Production basis None. No helicopter may be produced under this type approval.
Prior to original Certification of each aircraft, an FAA representative must
perform an inspection for workmanship, materials, and conformity with
the approved type design.
Equipment: The basic required equipment as prescribed in the applicable airworthiness
regulations (see certification basis) must be installed in the helicopter for
certification. In addition, equipment necessary for the particular special purpose
must be installed.
NOTE 1. Current weight and balance report including list of equipment included in certificated empty weight,
and loading instructions when necessary, must be in each helicopter at the time of original
airworthiness certification and at all times thereafter.
NOTE 2. The following placard must be installed in clear view of the pilot.
"This helicopter must be operated in compliance with the operating limitations specified in
Department of the Army Technical Manual TM 55-1520-205-10 and the FAA approved supplement
thereto."
For additional placards see flight manual supplement.
NOTE 3. Prior to civil airworthiness certification, the following mu st be accomplished:
(a) Modifications in accordance with FAA Sealed Jack A. Schneck Drawings AJS, AJS-A, 1JS,
2JS, 3JS, 4JS and 5JS.
(b) The provisions of AD 60-7-8.
NOTE 4. This model helicopter must be serviced and maintained in compliance with Department of the Army
Technical Manual TM 55-1520-205-20, "Organizational Maintenance Manual CH-21C helicopter"
dated 1964.
.....END....