The Aircraft: J-34  [mallard aviation]

1948 Grumman Turbine Mallard (G-73T)

Registration: VP-CLK (Cayman Islands)

  -  Amphibious capability

  -  Turbine reliability

  -  Extended range and high speed

  -  Extremely heavy construction

  -  Big payload

  -  Certified for single pilot operation

  -  First class executive interior

  -  Easily adaptable cabin configuration

The versatility of J-34's design has never been surpassed

Turbine Mallard Performance   (Nautical

Range with Max Payload – statute miles      

NBAA IFR Range –    Seats full

                                      Tanks full

Rate of Climb – all engines, MTOW

Rate of Climb – one engine out, MTOW

Typical fuel burn for flight planning:
600 lbs/hr below 10,000 feet=175 kts T.A.S.

600 lbs/hr at 14,000 feet=190 kts T.A.S.

Weight (pounds)

Max. Take-off

Max. Landing  -  water

                             land

Basic Operating

(includes 200 lbs. for crew and typ. equip.)

Useable Fuel

Max. Payload

Max. Zero fuel weight

Dimensions

Total length                                             

Total wingspan                                     

Total height at tail section, from ground line

miles)

300

     670

  1,200

  1,400

     400[spacer][spacer][spacer][spacer][spacer]

14,000

14,000

13,500

[spacer]

9,500

4,200

3,300

12,800

[spacer]

[spacer]

48' - 4"

66' - 8"

18' - 9"

Turbine Mallard Water Capabilities

Global travel demands J-34's excellent water capabilities.  At maximum weight in the water, the aircraft draws 2’-6".  Once it is up on a step, it draws less than 5".  The turbine conversion makes J-34 extremely maneuverable for docking or positioning into "tight spots".  Beta (reverse) and multi-engines allow for easy back up or turn-around, basically on the spot.  Or, maneuver nose up and easily attach/detach to or from moorings using the nose hatch with single pilot operations. It is also useful to extend the undercarriage in the water and taxi onto a ramp or hard shoreline.  In remote locations, one can back the aircraft onto a sandy beach for easy exit.  If the bottom is friendly, leave the gear up and rest right on the sand or silt.   If bottom conditions are unknown, lower the gear and taxi to protect the hull. This is very effective in an unfamiliar area.

The Turbine Mallard operates well in water with limited access. In particular, it can touch down and come to a stop in less than a quarter mile.  On takeoff, one can turn quite sharply while coming on a step if a straight path is not possible, and then continue turning to complete a comfortable takeoff.  This is handy when operating on small bodies of water, rivers, amongst reefs or when using the lee of an island to get calmer conditions. 

Easy access to Lizard Island, Australia

Radios

  • Century 2000 Autopilot: 3 axis, coupled, w/flight director,

     yaw damper
  • Switchable to #2 Nav/Compass system

  • 1 Collins ALT-50 Radar Altimeter

  • 1 Collins Safety Program 98:

      TCAS l l  (Version 7.0)

      Turbulence/Weather Radar

      Multifunction Display

      Dual Mode-S Diversity transponders

  • 1 Garmin GPS 155 TSO Global Positioning System – I.F.R.

     Approach Cert. w/Worldwide Database

  • 1 Marconi CMA – 734 Arrow Omega/VLF w/Evergreen TAS system

  • 1 Foster Airdata LNS 616B RNAV/LORAN w/Worldwide Database

  • 2 King KR87ADF

  • 2 King KY196 Comm.

  • 2 King KN53 Nav.

  • 2 King KN63 DME

  • 2 King KMA24H Audio Panel

  • 1 King KN72 VOR/LOC Converter

  • 1 King KNI 582 RMI

  • 1 King KI207 VOR/LOC Indicator

  • 1 King KHF 950 HF System w/loaded Ant.

  • 1 King KCS55A Compass Sys. w/
  • 1 King 1525A PNI

  • 1 Century 52C77-4 Steering Horizon

  • 1 Collins C-4 Compass Sys. w/331A-3G HSI

  • 1 United 5035P2-P44 Encoding Altimeter

  • 1 IDC Encoding Altimeter

  • 1 IDC Altitude Alerter

  • 1 Bendix MK 28C Marker Beacon

  • 2 Flitetronics PC-15B Inverters

Cabin Information - See Interior photos

Passenger Cabin – H/W/L in ft.         5.8 x 5 x 20

Passenger Cabin Volume – cu. ft.                 580

Baggage Volume – cu.  ft.                         61 + 21

Cabin Door Size – H/W in  ft.              3.16 x 3.41

Cargo Door Size – H/W in  ft.                  4.1 x 3.4

Passenger Seating                                        9 + 1

Airframe

11,817 TTSN

Engines

PT6A-34 715 ESHP - 521.7 TTSN

Props

Hartzell HCB3TN-3DY 3 Blade Reversing:

Takeoff from Turtlehead Island, Australia

Additional Equipment

  • Certified single pilot IFR/day/night/land/water/known icing

  • Long range tanks (4200 lbs)/14000 lbs gross weight

  • 200 mph cruise/7 hrs. range

  • Ten pax executive interior w/original teak appointments

  • 4 reclining chairs + 2 club + 3 place sofa

  • Portable bar unit and hot cup

  • Separate lavatory compartment with monogram flush toilet

  • 250 amp. Lear/Seigler starter/generators

  • Edison continuous loop fire detect w/halon extinguishers

  • Frakes hydraulic mods w/nosewheel isolation valve

  • Cargo door                             

  • Auto feather system

  • Air pump converter

  • Whelen strobe

  • Scott crew oxygen

  • Cargo nets

Mallard Aviation's J-34 slow taxi