Virtavia F-105D Thunderchief User manual

Virtavia F-105D Thunderchief –DTG Steam Edition
Manual Version 1.0
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F-105D Thunderchief
USER MANUAL

Virtavia F-105D Thunderchief –DTG Steam Edition
Manual Version 1.0
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Introduction
The Republic F-105 Thunderchief, first flown in 1955 and often known as
"Thud" by its pilots, was a rugged and reliable multi-role fighter with an
emphasis on low-altitude, high-speed penetration strikes with a single
nuclear bomb. At the time of its construction it was the largest fighter in
the world and set several world speed records. The F-105D was the
definitive variation, featuring an all-weather capability and modern
avionics (for the time) with 610 units of this type being built.
In Vietnam, the F-105s were used as bombers, the usual load exceeded
by fifty percent the amount carried by a World War II B-17. An extra fuel
tank was fitted into the spacious bomb bay while up to 12,000 lbs of
bombs were suspended from five hardpoints. Though primarily used as
a bomber, the Thunderchief still scored its share of downed Migs, 29 of
which felt the bite of the Thud. The F-105D's wing measures 34 feet 11
inches, tip to tip. Length is 64 feet 3 inches and height is 19 feet 8
inches. Wing area is 385 square feet. With its afterburning J75-P-9V, the
F-105D has a maximum speed of 1,390 mph at 50,000 feet. Empty
weight is 27,500 pounds, normal weight is 38,034 pounds, gross weight
is 52,546 pounds. The built-in armament of the F-105D consists of one
20 mm M61 Vulcan cannon with 1,029 rounds. A great variety of
missiles can be suspended from the Thunderchief's hardpoints, the
actual distribution would be determined by the particular mission at
hand.

Virtavia F-105D Thunderchief –DTG Steam Edition
Manual Version 1.0
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Support
Should you experience difficulties or require extra information about the
Virtavia F-105D Thunderchief, please e-mail our technical support on
[e-mail]
Copyright Information
Please help us provide you with more top quality flight simulator models
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These files may not be copied (other than for backup purposes),
transmitted or passed to third parties or altered in any way without the
prior permission of the publisher.
The source code for this product is closed. No modifications or reverse
engineering may be carried out without prior consent from Virtavia.
All rights reserved –copyright Virtavia 2016

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Package Contents
The Virtavia F-105D package contains six model variants to represent
the various stores loadouts typically carried by this aircraft :
Clean configuration
Mk.82 free-fall bombs loadout
M117 free-fall bombs loadout

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AGM-45 Shrikes loadout
Post-mission –empty pylons
Long-range loadout

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Exterior Model
The exterior model has all the usual animations such as ailerons,
elevators, flaps and speedbrakes. There are some additional animations
on the model :
Crew Access
shift-e : Pilot’s canopy
Refuelling Probe
shift-e+2 : Extend/retract the probe
Afterburner Petals / Spoilers
The four ‘petals’ surrounding the exhaust nozzle will spread open when
afterburner is engaged. The two lateral petals double as spoilers and will
retard the aircraft both in the air and upon landing.
Drag Chute
Upon touchdown, press and hold the F2 key and the drag chute will
display. There will be a corresponding retardation. Tap the F1 key and
the chute will be hidden.
Spoilerons
These small flaps open and close automatically to aid roll
manouverability.
Pilot
Pressing ctrl-w will toggle pilot visibility.
Tail Hook
Normally defined as Shift-Q but can be reassigned to ‘T’ if desired’.

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Exterior Lighting
Pressing the L key will turn on all lights. You may however wish to turn
them on using the appropriate switches on the Lighting Pop-Up Panel
(press shift-6 or click the ‘R’ simicon on the pilot’s panel in the cockpit),
as the L key also turns the on navigation, landing lights and cockpit
lighting, which should ideally be switched separately.
Shift-L will toggle the nav lights and the cockpit lights.
Crtl-L will toggle the landing lights.

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Alternative Viewpoints in FSX
There are several different ways of looking at the aircraft and the
cockpit, select these alternative views by right-clicking in an empty area
and picking the 'Aircraft' menu for external views and the 'Cockpit' menu
for views inside the cabin. It is possible to zoom and pan as normal in
these alternative views. Cycle though the available ones by pressing the
A key.
External View Options
It is possible to pan and zoom as normal in all external views.
‘Dirty’view, rear - perfect for viewing the afterburner in action
Tail View - up and behind the ‘Thud’

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Front, left side view
Front, right side view
Front View - down low

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Front View - up high
Two-D Panel Pop-Ups in VC
The following keystrokes will toggle the 2D pop-up panels associated
with the accompanying 2D panel suite :
Shift-2 : Refuel panel –allows probe extension, add/remove fuel
Shift-3 : Autopilot controls only
Shift-4 : Left side panel –Autopilot and Electrics
Shift-5 : Right side panel –Radios, Anit-Ice, Lights
Shift-6 : Standard FSX GPS unit

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Instrument Panel
The images below can be accessed in-game in large format via the
Aircraft/Kneeboard/Checklist optiion.

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REFERENCE INFORMATION
Virtavia Republic F-105D Thunderchief Procedures
The Republic F-105D is a large, heavy aircraft with high wing loading. It
is designed for low-altitude, high-speed penetration of enemy territory to
deliver tactical ordnance. As a result, this aircraft is not perfectly suited
for the tight knife-fighting style of smaller, more nimble aircraft.
Intentional spinning and stalling is ill-advised when flying the F-105D. In
addition, the F-105D has exceptionally high takeoff and landing speeds
that necessitate the use of long paved runways. Ensure sufficient
runway when planning for takeoff and landing.
Engine Start:
1. Ensure sufficient fuel for engine start.
2. Ensure battery and avionics switches are ON.
3. Press the engine starter.
4. At approximately 15% RPM switch on fuel supply for the engine.
5. Observe engine auto-ignition at approximately 23% RPM, signified
by spike in EGT.
6. Monitor engine parameters, allow 45-60 seconds for engine to
stabilize at ground idle (approximately 60% RPM).
NOTE: For simplified procedure, Ctrl+E for auto engine start.
How to make a proper take-off in the F-105D "Thunderchief":
NOTE: Do not try to take off at lower than recommended
takeoff speed (Approximately 180 knots).
Correct Take-off Procedure:
1. Flaps in their full take-off position. (Flaps position 1)
2. Release brakes and throttle simultaneously.
3. Once engaged, the afterburner should light up within 5 seconds.
4. At approximately 130 knots raise the nose wheel smoothly until
proper take-off attitude is reached (approximately 10 degrees nose
up position). The amount of rotation will be indicated on the ADI.
Do not try to pull the airplane into the air, by maintaining a steady
10 degree nose up attitude lift-off should occur at approximately
180 knots.
Note: The 10 degree attitude will be such that the ventral fin will
not scrape and the excess thrust will be more than enough to
ensure positive lift-off, climb and acceleration.

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After Takeoff –Climb:
1. When definitely airborne and after adequate flying speed is
reached and positive rate of climb is established retract gear.
Note: Always retract landing gear prior to exceeding 240 KCAS
(Maximum speed during landing approach with landing gear
extended is 275 KCAS).
2. Retract flaps. If you forget to retract the flaps they will retract
automatically at 275 KCAS.
3. Afterburner off (as required)
Cruise:
IMPORTANT NOTE: Your minimum CRUISE & MANEUVER
airspeed
must always be above 240 KCAS!
1. Once at desired altitude, slowly bring the aircraft level and trim as
best as possible before enabling the autopilot.
NOTE: If using autopilot vertical speed hold, manually reduce the
vertical speed as you approach the desired altitude to assist the
autopilot altitude capture mode.
Estimates:
Altitude
Airspeed
Mach
number
Fuel Burn
100ft
950
KIAS
1.275
30.12
lbs/NM
35,000ft
320
KIAS
0.900
8.50 lbs/NM
38,000ft
319
KIAS
2.25
12.08
lbs/NM
= Optimum Cruise

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How to land the F-105D "Thunderchief":
THE KEY TO ANY GOOD LANDING IS PRECISE AIRSPEED
CONTROL
Maintain as high a throttle setting as is consistent with approach
conditions before landing. Although the engine will respond normally
when accelerated from idle, it is preferred to maintain a minimum of 75
to 80 percent RPM during the approach to minimize the time delay
required to obtain sufficient thrust if a go-around becomes necessary.
1. Enter the traffic pattern at 300-350 KCAS approximately three
miles from end of runway and 1500 feet about field elevation.
2. Level break - Adjust throttle as required.
3. Landing gear handle - DOWN (below 275 KCAS).
4. Flap handle - Set at LANDING & TAKEOFF position.
5. Maintain break altitude until on base leg. Optimum airspeed on
base leg is 225 KCAS.
Note: To gain the benefit of aerodynamic drag, use speed brakes
as required and control airspeed and rate of sink by throttle.
6. Decrease airspeed to 195 - 210 KCAS prior to rolling out on final.
7. Use speed brakes as required.
RECOMMENDED APPPROACH SPEEDS & GLIDE ANGLES MUST
BE ADHERED TO AND LANDINGS MUST BE SMOOTH WITH
VERY LOW SINK RATES!
8. After establishing final approach speed of approximately 190
KCAS, begin flare to touchdown.
9. To preclude excessive rates of sink during flare, a 2.5- to 3.0-
degree final approach is recommended.
10. Rate of sink should be controlled by a combination of power
and speed brakes until touchdown.
11. Touchdown at 170/160 KCAS and simultaneously reduce
throttle to idle.
12. Maximum aerodynamic braking is obtained after touchdown
by retracting the flaps and increasing back pressure on the stick to
keep the nose wheel slightly aloft whenever above 130 KCAS.
13. At 130 KCAS gently lower the nose.
14. Deploy drag chute for all landings. To gain maximum drag
chute effectiveness, which is obtained in the higher allowable
speed regions, the drag chute should be deployed as soon as

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positive directional control is available with the main wheels on the
ground.
Takeoff, climb and landing instructions provided by Cliff Presley, primary
flight model developer for this project and former F-105 pilot with the
United States Air Force.

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Virtavia F-105D Thunderchief Reference
The Republic F-105 Thunderchief, first flown in 1955 and often known as
"Thud" by its pilots, was a rugged and reliable multi-role fighter with an
emphasis on low altitude, high-speed penetration strikes with a single
nuclear bomb. At the time of its construction it was the largest fighter in
the world and set several world speed records. The F-105D was the
definitive variation, featuring an all-weather capability and modern
avionics (for the time) with 610 units of this type being built.
Specifications:
Single-seat, supersonic fighter-bomber
Empty weight:
27,501 lbs
Typical TO
weight:
48,000 lbs
Max TO weight:
52,838 lbs
Fuel capacity:
1401 US Gal (with aux tank
installed)
Drop tanks:
450/650 US Gal. each
Initial climb rate:
35,000 ft/min
Service ceiling:
50,000 ft
Aircraft Limitations:
Stall speed, clean:
160 KIAS
Max gear extension:
250 KIAS
Max gear retraction:
250 KIAS
Max indicated airspeed:
950 KIAS
Maximum speed at sea
level:
Mach 1.27
Maximum speed at 38,000
feet:
Mach 2.25
Maximum G:
+8/-3
Notes on configuration and load-out:
All applicable load stations are included in the configuration file. In the
event the user wishes to use a model with particular weapon settings,
one will need to add weight to the particular weapon station in the Flight

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Simulator’s payload and fuel editor. The recommended weights for each
load station are as follows:
NOTE: No modifications to the aircraft.cfg file are necessary for these
load stations. Simply add the weight into the payload editor in the
simulator.
Station_load.0
Pilot
Pilot’s
Preference
Station_load.1
Left drop tank
(450gal)
275.00 lbs
Station_load.2
Right drop tank
(450gal)
275.00 lbs
Station_load.3
Center drop tank
(650gal)
375.00 lbs
Station_load.4
8x M117 Bombs
6,560.00 lbs
Station_load.5
2x AGM-45 Shrike
780.00 lbs
In the fuel load-out editor the drop tanks are listed as following:
External 1:
Left drop tank (450 gal)
External 2:
Right drop tank (450 gal)
RightAux:
Center-pylon drop tank (650 gal)
If you are using a model that does not have one of these fuel tanks, set
the fuel level for the given tank to 0. You must do this as the fuel tank
will always default to the maximum capacity of the tank.
Autopilot:
Though this aircraft is equipped with an auto flight system, it is designed
to be flown by hand through the majority of the flight envelopment. The
auto flight system however, is fully functional and more than capable of
controlling the aircraft’s axis of control. It is recommended that when
attempting to use the auto flight to hold an altitude to level off as best as
possible to avoid any pitch oscillations.
Trim Characteristics:
The aircraft will require only small trim adjustments throughout its flight
envelope, with the exception of landing, where the gear and flaps cause