The Aircraft: J-34
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
Rate of Climb – all engines, MTOW
Rate of Climb – one engine out, MTOW
Typical fuel burn for
600 lbs/hr at 14,000 feet=190 kts T.A.S.
Max. Landing - water
(includes 200 lbs. for crew and typ. equip.)
Max. Zero fuel weight
Total height at tail section, from ground line
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
• Century 2000 Autopilot: 3 axis, coupled, w/flight director,
• 1 Collins ALT-50 Radar Altimeter
• 1 Collins Safety Program 98:
TCAS l l (Version 7.0)
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 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
PT6A-34 715 ESHP - 521.7 TTSN
Hartzell HCB3TN-3DY 3 Blade Reversing:
Takeoff from Turtlehead Island, Australia
• 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