N4367L - FOLLAND GNAT
Aircraft Summary
General
Manufacturer
FOLLAND
Model
GNAT
Serial Number
XR955
Registration #
N4367L
Condition
Used
Description
operational missions prior to transition to actual combat aircraft. It is a tandem seating configuration with the student in the front and instructor in the rear. A single 4520 lb. thrust Rolls-Royce Orpheus 101 non-after- burning engine powers the aircraft. Equipped with wing mounted slipper tanks that are removable, the aircraft holds 2650 lbs. of fuel and has a max take-off weight of 9500 lbs.
The GNAT has a service ceiling of 45,000 feet and a max IAS of 525 KIAS. Despite its high Vne, the GNAT only requires 4500 feet of runway and has of approach speed of 140 KIAS. The cockpit is pressurized to 4 psi and has heating and air-conditioning systems.
Used by several military services throughout the world during the 1960-1970 era, the GNAT was also the aircraft of the British RAF Red Arrows Acrobatic Flight Demonstration Team. XR955 was the Number 2 ship for the Red Arrows for several seasons.
This aircraft has recently undergone extensive overhaul and modification to eliminate excessive maintenance requirements and to simplify in-flight operations. A redesigned instrument panel layout equipped with American instruments and avionics will eliminate operational downtime and repair headaches. Conversion to a 28 VDC primary electrical system with a trouble free DC alternator and replacement of the air starter with a DC electric starter eliminates the need for extensive ground support equipment. Replacement of the liquid oxygen system with high-pressure gaseous oxygen makes service available anywhere.
Equipped with dual King 720 channel Coms, dual King Navs with G/S and Marker, King ADF, King Transponder, Northstar MI Loran C and Sperry C-14 gyro systems, each cockpit has its own audio and ICS amplifiers along with audio and transmit selection. Control of Coin 2 tuning can be shifted to the back seat. The Collins 331A-3G HSI can track Nav 1, Nav 2 or Loran signals on the Nav needle along with continuous heading and radial information on the adjacent RMI. King KN-63 DME tuning is via NI or N2 with a repeater indicator in the rear cockpit.
With a short wingspan and smaller overall size than the average jet of this performance, a GNAT can be hangar in a standard twin - engine hangar with room to spare.
The Folland GNAT Aircraft is a two-seat advanced trainer jet used by the British Air Force and other military air force for advance student training in ACM and
Airframe
Airframe Notes
Principle Dimensions:
Overall length: 37 Ft 10 In
Height (to top of fin): 10 Ft 6 In
Height (to top of canopy): 6 Ft 5 In
Wingspan: 24 Ft 0 In
Wheel track: 5 Ft 1 In
Weight Specifications:
Empty Weight: 5662 Lbs
MGTOW: 9520 Lbs
MLG: 8100 Lbs
Fuel Capacities:
External Wings Tanks: 944 Lbs, 145.2 Gals
Fuselage & Internal Wing Tanks: 1895 Lbs, 291.5 Gals
Total Internal & External Usable: 2339 Lbs, 436.7 Gals
Engine
Engine Notes
Rolls Royce Orpheus 101: 4520 Lbs Thrust
Fuel: Jet A Acceptable
Oil: Aeroshell 750
Capacity: 1.5 Gallons
Electrical:
DC Supply: Prestolite 28 VDC 100 Amp
Voltage Regulation: Solid State with Undervoltage Warning Light and Overvoltage Protection
AC Supply: Dual 115 VAC 250 VA Rotary Inverters, Independent with Manual Select
Batteries: 2 GE-15 @ 22 Amp/Hr Each
Ground Service: Standard DC APU Plug Left Side
Aircraft Fuel Performance:
Altitude KIAS Fuel Burn/Min
10,000 300 KIAS 31.6/Min
20,000 280 KIAS 25.4/Min
30,000 260 KIAS 20.6/Min
40,000 .77 Mach 17.0/Min
Altitude Range Nautical Cal/Hr
10,000 440 291
20,000 546 234
30,000 693 190
40,000 850 157
Avionics
Avionics/Radios
Audio: Dual King KA-25 Audio/ lCS Amplifiers with Independent Audio and Transmit Selection
Communications: Dual King KTR-900 720 Channel Com 2 Tuning Shift to Rear Cockpit.
Ground Com 2 and ICS Operating with A/C Shutdown for Clearance Delivery and Emergency Communications
Navigation: Sperry C-14 Compass System Driving Duel Collins PN- 101 HSI and Duel RMI Indicators
Dual King KNR-66O 720 Channel Direct to RMI Needles and Selectable to HSI Needle
King KGM-691 G/S and Marker King KDF-805 ADF Selectable to #2 RMI Needle
King KN-63 DME with NI and N2 Tuning
Repeater Indicator Rear Cockpit
Northstar MI Loran Selectable to HSI Needle
King KXP-755 Transponder
Encoding Altimeter in Front Cockpit
Instrumentation:
Front Cockpit
28 VDC Electric Gyro Horizon
Engine Tachometer
360 Degree Non-Tumbling
Collins 331A-3G HSI
28 VDC Clock
Feel Trim Indicator
Bendix ID-250 RMI
Undercarriage Indicator
0-50,000 Ft Encoding Altimeter
Flap Position Indicator
0-6,000 Fpm VSI
Flux Compass Indicator
28 VDC Electric Turn Needle
Fuselage Fuel Gage and Slipper
Tank Eyeballs, Low Fuel Light
Hydraulic Pressure Gage
Secondary Warning Indicators
Standard Warning System Panel
Tailplane Position indicator
Tailpipe Temperature Gage
0-650 KIAS -A/S & Mach indicator
with Adjustable A/S & Mach bug
Rear Cockpit
Identical to front including:
Com 2 Gables Control Head for Com 2 Tuning in Rear Cockpit
Rear Cockpit Layout Slightly Different due to Size
Additional Equipment
Additional Equipment
Oxygen: Dual 512 Cu In High-Pressure Oxygen Tanks
6 Hr Capacity
Dual Bendix 2894-6B-AIA Diluter Demand Regulators
CRU-60 Bayonet Mask Connector attached to Parachute Harness with Standard Pull Off
Bendix Bail-Out Oxygen Bottle and Regulator attached to Parachute Harness
15 Minute Capacity for Bailout and Emergency Supply
Ejection Seats: Folland Type F 4GT I & 4GT 2 9O-500
Seat Envelope: KIAS w/Time Delay Deployment Above 235 Kts and Barometric Delay or Main Canopy Above 10,000 Feet MSL
0-2000 AGL, 90 Kts Wings Level Above 2000 AGL, All Altitudes
Pressurization: Max 4 PSI Cockpit Differential
Aircraft Alt Cabin Alt
SL
3,000 3,000
10,000 8,500
20,000 11,500
30,000 15,000
40,000 20,260
30,000 24,100
Heating/Cooling: Heating and Cooling Supplied From Compressor Bleed Air and Air Cycle Turbine Unit
Front Cockpit Manual Control
Full Windscreen and Canopy De-Misting
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