**US Forest Service Flight Training and Standardization**

08/05/2006

**DC3-TP67**

**GENERAL**

A.  **Dimensions**

> 1\. Wing Span 95 Ft. 8 In.
>
> 2\. Height 17 Ft. 10 In.
>
> 3\. Length 67 Ft. 1 In.

B.  **Engines**

Pratt & Whitney PT6A-67R turbine engines

Emergency Power 1424 SHP

Max Takeoff 1281 SHP

Max Continuous 1220 SHP

C.  **Propellers**

> Hartzell HC-B5MA-3M/M11691NS, five-bladed, 118.7" diameter, all-metal
> full- feathering, reversible.

D.  **Fuel**

> Jet A, Jet A-1, Jet A-2, Jet B
>
> JP-4, JP-5, JP-8, Avgas not approved.
>
> Standard System (lbs)
>
> Total capacity 5146 lbs
>
> Total Usable 5042 lbs

E.  **Oil**

> Total capacity 2.5 Gallons
>
> Usable quantity 1.5 Gallons

F.  **Maximum Weights**

> Max Takeoff 28,750 lbs
>
> Max Landing 28,750 lbs
>
> Max Zero Fuel 28,750 lbs
>
> 1
>
> **US Forest Service Flight Training and Standardization**
>
> 08/05/2006
>
> **DC3-TP67**
>
> **OPERATING LIMITATIONS**

A.  **Airspeed Limitations**

> Max Operating, Vmo 170 KIAS
>
> Max Maneuvering, Va 107 KIAS
>
> Max Flap Extension, Vfe 1/4 133 KIAS
>
> Max Flap Extension, Vfe ½ 97 KIAS

Max Flap Extension, Vfe ¾ to Full 95 KIAS

Max Ldg Gear Extend and Operating, Vle and Vlo 141 KIAS

Min Control-Air, Vmca 67 KIAS

Min Control-Ground, Vmcg 56 KIAS

Min Control-Air, Vmca, Emergency Power 71 KIAS

Min Control-Ground, Vmcg, Emergency Power 60 KIAS

**B.** **Power Plant Limitations**

Max Torque, Emergency Power 111%

> Max Torque 100%
>
> Max Continuous Torque 95%
>
> Max Transient Torque, 20 seconds 129%
>
> Max Torque, Prop feathered 50.5%
>
> Max Torque, Oil pressure 60 psi 50%
>
> Max Torque, Oil pressure 85 psi 75%
>
> Max ITT, Emergency Power 855 C
>
> Max ITT, Takeoff 825 C
>
> Max Continuous ITT 840 C
>
> Starting ITT, 5 seconds 1000 C
>
> Transient ITT 20 seconds 870 C
>
> Max Reverse ITT 765 C
>
> Oil Pressure 90-135 psi
>
> Min Oil pressure idle 60 psi
>
> Transient Oil Pressure 40 to 200 psi
>
> Oil Temperature, Takeoff 10 to 110 C
>
> Oil Temperature, Continuous 10 to 105 C
>
> Oil Temperature, Transient -40 to 110 C
>
> Oil Temperature, Reverse 10 to 99 C
>
> Min Oil Temperature -40 C
>
> Max Propeller rpm 1700 rpm
>
> Max Gas Generator rpm 104 rpm

C.  **Propeller Ground Limitations**

> Stabilized engine ground operations is prohibited between the
> following propeller rpm's:
>
> 400 to 900 rpm
>
> Above 1600 rpm unless headed into wind.
>
> 2

D.  **Fuel Pressure**

> Max Pressure 50 psi
>
> Normal 5 to 50 psi

E.  **Generator Ammeter**

> Max in flight 300 amps
>
> Normal 0 to 300 amps

Max on ground 250 amps

F.  **Minimum Flight Crew**

> A minimum flight crew of one pilot and one copilot for all operation.

G.  **Takeoff and Landing**

> Takeoffs and landings are limited to pressure altitudes between --1000
> feet and 10,000 feet and temperatures between --40 C minimum to ISA
> +35C maximum.

H.  **Maximum Operating Altitude and Enroute Temperature Limit**

> The maximum operating pressure altitude is 25,000 feet. Enroute
> temperature limits are --40 C minimum to ISA +35 C maximum.

I.  **Engine Ice Protection**

> Engine inlet and propeller icing protection must be on whenever the
> outside air temperature is at or below +5 C and visible moisture is
> present.

J.  **Maneuvering Flight Loads**

> Flaps up +2.5 G
>
> Flaps down +2.0 G
>
> Negative -1.0 G

K.  **Crosswind**

> The maximum demonstrated crosswind at 50-foot height is 24 knots. This
> is not limiting.

L.  **Reverse Thrust Limitation**

> Reverse thrust is limited to ground operations only. Prior to lowering
> the tail wheel to the ground, caution should be exercised as
> directional control may be reduced during reverse thrust operations.
>
> Positioning of power levers below flight idle is prohibited while
> airplane is in flight.
>
> Note: Do not attempt to move power levers into reverse unless
> associated engine is running.
>
> 3

M.  **Starter Limitations**

> 30 seconds on followed by 1 minute off for a maximum of three
> consecutive start cycles. After the third start attempt a period of 30
> minutes off minimum must be allowed before a fourth start is
> attempted.

N.  **Alternate Static Source**

> Use of alternate static source for takeoff is prohibited.

O.  **Fuel Quantity Indication**

> The fuel quantity gauges shall be used to determine fuel quantity and
> not the fuel flow/totalizer.

P.  **Approved Fuel Anti-Icing Additives**

> Anti-icing additive is required.

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