Tarskin

[Data Sheet] Fokker T.V

Model: Fokker T.V
 
Technical Description: The T.V was a five-seat, twin-engined monoplane. It featured a wooden wing, while the slab-sided fuselage was of mixed construction, with a wooden monocoque centre fuselage, a fabric covered steel tube rear fuselage and a duralumin forward fuselage.
 
Visual Aspects:
 
General aspect picture
Fokker-T.V-No.jpg
 
Picture showing the top machine gun position in it's opened position
5.jpg

 

A detailed schematic of the internals and layout

TV1.jpg
 
 

A detailed cut-out picture of the Fokker T.V by Herman Somberg (Fokker Factory artist in the 1930's)

 

lFt3QVI.jpg
 

Yet another schematic (this schematic is also used as source 5)

 

fokkert5_cut.jpg

 

Video of the aircraft (internal and external) of an ongoing project in FSX (Project can be found -> http://www.sim-outhouse.com/sohforums/showthread.php?90815-FSX-The-1940-Fokker-T-5-bomber )

 

https://youtu.be/_mvCuh-B52E

 

Short History: The first purpose designed and built bomber of the LVA was intended to fill the role of an aerial cruiser (heavily armed aircraft not needing escort to attack ground and air targets). The aircraft therefore was less manoeuvrable than the G.I and D.XXI (also built by Fokker) but was quite suited for ground attack with it's heavy cannon and bombs.
 
The beginning of it's service years were however troubled by difficulties with the Bristol engines, which used a lot of oil, and the bomb racks. The LVA originally asked van Heijst to design bomb racks which featured an electronic release mechanism and allowed for bombs that were not designed yet. These racks were not popular due to technical difficulties and a significant number of aircraft were fitted with old racks (by Heeber) from the KLM Fokker F.VIIb/3m aircraft.
 
During the invasion of the Netherlands, the aircraft were used as bomber interceptors on the first day with moderate success. The few operational craft were responsible for 6 confirmed air kills and several damaged. The performance of the aircraft as a bomber was less spectacular however since the majority of the T.V's did not have the intended bomb racks, the highlight has to be when the bombers were ordered to attack Ju-52 transport aircraft that were landing/landed at airfields around Den Haag. The actual impact of this operation is unclear but in the end the Germans suffered a heavy defeat at Den Haag.
 
The germans did capture some aircraft but what happened to them afterwards is unclear.
 
Configuration: Bomber
 
Production Status
First flight: 16th October, 1936 [1; page 10]
Introduction year: 21st July, 1938 [1; page 17]
Status: Production [1]
Number built: 16 [1]
 
Crew Data
Number of crew: 5 [1; page 7]
Roles of crew: Spotter/Nose gunner, 1st pilot, 2nd pilot/Top gunner, Radio/Waist/Side gunner and Mechanic/Tail gunner [1; page 7]
 
Engine Data (Piston Aircraft)
Manufacturer: Bristol [1; page 56]
Name: Pegasus XXVI [1; page 56]
Number of engines: 2 [1; page 56]
Number of cylinders: 9 [2; page 109]
Configuration: Radial [2; page 109]
Cooling: Air [2; page 109]
Supercharger / Turbo: Supercharger [2; page 114]
Fuel: 87 Octane [2; page 109]
Dry weight:
Gear ratio: 0.666:1 [1 & 2; page 114]
 
Fuel Data
Fuel tanks: 1500L [1; page 56] in two wing tanks [5]
Fuel consumption:
 
Power Data [x]
915 hp @ 2600 rpm @ 2900 m [1; page 56]
WEP
Take Off Power: 
Maximum Power:
Cruising Power:

RPM Limit: 3.120 RPM [2; page 109]
 
Propellor Data
Manufacturer: Hamilton [4]
Type: Standard [4]
Number of blades: 3
Blade diameter: 15.7 [3]
 
Basic Geometric Data
Length: 6m [1; page 56]
Wing span: 21m [1; page 56]
Wheel track: 5.3m [1; page 56]
Wing area: 66.2m2 [1; page 56]
Height: 4.2m [1; page 56]
Flap area:
Elevator area:
Rudder area
Aileron area:
 
Weight Data
Empty weight: 4650 kg [1; page 56]
Loaded weight: 7250 kg [1; page 56]
 
General Performance Data
Maximum speed: 417 km/h @ 100% power (2900m) [1; page 56]
Minimum speed:
Landing speed: 105 km/h [1; page 56]
Cruising speed:  335 km/h @ 66.6% power (2900 m) [1; page 56 & 5]
Service ceiling: 8550 meter [1; page 56]
Range: 1550 km [1; page 56]
 
Max Speed Chart
.. at 1.000 meters
.. at 2.000 meters
.. at 3.000 meters
.. at 4.000 meters
 
Rate of Climb
2m30s to 1.000 meters [1; page 56]
4m54s to 2.000 meters [1; page 56]
7m12s to 3.000 meters [1; page 56]
9m48s to 4.000 meters [1; page 56]
13m06s to 5.000 meters [1; page 56]
17m30s to 6.000 meters [1; page 56]
 
Armament
1 x Solothurn 20mm Tankbüchse (Nose Turret) [1; page 7]

  • 45 degree firing arc in all directions [1; page 12]
  • 5 round cartridges [1; page 7]

4 x Lewis 7.9mm M20 machine guns (Top, Waist/Sides and Tail turret) [1; page 56 & page 37]

  • The waist and side positions had two pivot mounted machine gun operated by the radio operator [1; page 37] -> The last picture at the top of this page shows how this looked [5]
  • Drum loaded machine guns with 97 rounds per drum [1; page 37]

Bombload
 
The T.V was designed to have a van Heijst bomb rack [1; page 7-8].
 
The van Heijst racks (for the T.V) offered a total of 24 combinations using 8, 25, 50, 100, 200 and 300 kg bombs, bringing the total theoretical range from 384 kg to 1200kg [1; page 8].

 

Several T.V's were equipped with van Heijst bomb racks originally intended for the militarized version of the Fokker F.VIIb/3m passenger liner and could hold a maximum bomb load of 400 kg (2 x 100kg, 4 x 50kg) [1; page 19]

 

There was also a Heeber bomb rack for the T.V [1; page 19], however how much this could hold is unknown for now. There is the possibility that the sometimes mentioned 1000kg maximum bomb load is based on this rack.

 

 Ammunition:
<Describe ammunition that was used if known>
 
Notes
 
<if applicable>
 
Sources
 
1.  Frits Gerdessen & Luuk Boerman. Fokker T.V 'Luchtkruiser'. History. Camoflage and Markings. Dutch Profile #9, 2009.

2. A. Lumsden. British Piston Aero Engines and their Aircraft, 2005.

3. Fokker T.V Schematic Drawing by Nederlandse Vereniging van Modelbouwers (Third picture)

4. http://www.airwar.ru/enc/bww2/fokt5.html

5. http://sobchak.files.wordpress.com/2010/10/fokkert5_cut.jpg

Edited by Tarskin
  • Upvote 6
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So the Solothurn cannon was semi-auto/

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Correct

 

Regarding the subject, does anyone know a good source for propellers? I am struggling to identify the exact propellers used on this aircraft, I would want to say that it's a Rotol standard 3-blade propeller but I can't verify this (with a source). The other option is that they used the Hamilton Standards (as the G.I), to lower the production complexity.

Edited by Tarskin
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looks similar to falco's props

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May 4th 2015 (Update)

 

  • Added propellor information from http://www.airwar.ru/enc/bww2/fokt5.html until a better source is found.
  • Added a new schematic from a fokker factory artist.
  • Added a different schematic (illustrating the dual machine gun for 3 gun positions layout for the radio operator)
  • Added a video from an ongoing FSX project.
Edited by Tarskin
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