Fokker G.1, G.2, G.3

blockhaj

Swedish "want to be" aviation specialist
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Hello. I didnt find a thread dedicated to this amazing aircraft so i thought i start one. I personally dont know more about this plane than an average person ho has access to Wikipedia and google pictures. I thought we could collect data and history on it for future generations to see.

Variants:
Fokker G.1 Mercury, this variant used Bristol Mercury VIII engines. It had 8x 7.9 mm FN mg's in the nose and a single 7.9 mm FN gunner in a backwards facing turret thingy. It could also a carry 300 kg bombload.
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Fokker G.1 Twin-wasp, this variant is almost the same as the one above but it used Pratt & Whitney SB4-G Twin Wasp Junior engines. It also differs in that it could take a bomb load of 400 kg.

Fokker G.1 Hispano, this variant was meant for export and was prototyped. It used Hispano-Suiza 14AB-02/03 engines and differed mainly in armament and size. It had 2x 7.9 mm FN mg's and 2x 23 mm Madsen cannons in the nose along with a 7.9 mm FN mg gunner. It was apparently smaller than the dutch service variant.
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Fokker G.2, No info

Fokker G.3, No info
 
The G.2.
 

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blockhaj said:
Fokker G.2, No info

Fokker G.3, No info

The G.2 project created a series of Ontwerp numbered variants and LVA designations -- CG.2, GC.2, C.XVI, etc.
A few G.I-related project numbers ...

Ontwerp 129 = G.I precursor (smaller nacelle, various engines)
- http://www.secretprojects.co.uk/forum/index.php/topic,2740.msg86732.html#msg86732
Ontwerp 130 = G.I (HS 14Ab, then P&W Twin Wasp Junior)
- G.I prototype 'X-1' (Hispano-Suiza 14Ab)
- G.I prototype conversion & G.IB (P&W Twin Wasp Junior)
Ontwerp 135 = 1936 'Super G.1' light bomber project (Mercury VIII)
Ontwerp 138 = Enlarged G.IA for LVA (Bristol Mercury VIII)
Ontwerp 152 = 1937 T.VI ( G.I/T.V hybrid project, Bristol Hercules)
Ontwerp 154 = G.2 project variant (1939 CG.2)
Ontwerp 163 = 193? G.I observation project (DB 600s)*
- All metal construction, * some sources say DB 601s
Ontwerp 179 = 1939 improved G.I fighter project
Ontwerp 186 = 1939 G.3 project (Bristol Taurus)
- 'Indische jachtkruiser'?
Ontwerp 195 = G.2 project variant
Ontwerp 198 = G.2 project variant
Ontwerp 199 = G.2 project variant

- http://www.secretprojects.co.uk/forum/index.php/topic,2740.0/all.html

Doubtless, there are more G.I-related Ontwerp numbers ;D

BTW, IMPS Nederland has a good summary of the fates of individual Fokker G.Is.
- https://www.ipms.nl/artikelen/nedmil-luchtvaart/vliegtuigen-f/vliegtuigen-f-fokker-g1.html
 
Did they actually convert the prototype to twin wasp engines?
 
Yes. X-2 had its Hispano-Suizas removed after one of those engines was damaged due to overheating during its fifth flight. SB4-G Twin Wasp Juniors were then substituted. Visual cues for the engine swap are a longer carb intake (compared with your attached photos at the Paris Salon), an oil cooler housing beneath the nacelle, and cooling gills.
 
The first Bristol Mercury VII powerd G.1 was not constructed. (drawing nr. 39207 of 4 November 1936)
As Apophenia mentions "301" flew 15 minutes with Mercury VIII on 19 November 1938.
Perhaps it's interesting to know that the Mercury powered G.1 variants were a bit larger compared with the G.1 protorype.

source Fokker G.1 Jachtkruiser : Vol 1 by Frits Gerdessen,Karel Kalkman,Cor Oosterveen & Willem Vredeling. Lanasta 2011.
 
From the book;

Fokker G-1 jachtkruiser – Deel 1,here is a Fokker G.3.
 

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Does anyone have any picture of specifikations about the bombs that the mercury and wasp could carry? Im just guessing that they carried some 50 kg bombs externally under the wings and belly?
 
A bit of a necro but for the future reader here are some cool specs for the G.1 Hispano. I should note that my sources may not be 100% correct but i thought id throw this out while i had it on my mind.
  • Max speed:
    485 km/h at 3500 meters
    430 km/h at sea level.

  • Climb rate:
    14 m/s up to 5000 meters

  • Armament:
    2x Fixed 7,92 mm (Mauser cartridge) Madsen aircraft machine guns with 450 rounds per gun.
    2x Fixed 23 mm Madsen aircraft autocannons with 60 rounds per gun.
    1x Movable 7,92 mm Madsen aircraft machine gun with 100 round drum magazines.

  • Bomb bay:
    Prototype was trialed with several bomb bay configurations during its lifetime. A 350 kg bomb was the largest type that could be fitted. The bomb bay was suited for 400 kg of bombs max.
 
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The Dutch Wikipedia claimed
That Fokker wanted to use Roll&Royce Kerstel for G.1
what was refused by British government, so they went for Bristol Mercury VIII

Is this true and are there more Information about this ?
it would change the G.1 fuselage
 
The Dutch Wikipedia claimed That Fokker wanted to use Roll&Royce Kerstel for G.1 what was refused by British government...

That seems highly improbable. As far back as 1931, the Netherlands had received Kestrels from the UK for use in military aircraft. Those Rolls-Royce engines powered in-service LVA Fokker C.Vd and C.X recce-bombers and D.XVII fighters.

Other sources say that it was the Merlin that Beeling and Schatzki wanted as replacements for the poorly performing Hispano-Suiza Type 80 (HS 14AB-02) radials. It would be more understandable if the British government was unwilling to export Merlins in the late 1930s.

BTW: When you say Merlin installation "would change the G.1 fuselage", are you referring to the twin booms or the central pod?
 
This makes allot more sense if Merlin is involved

What i mean are the twin booms, who have to house the two longer heavier Engines
The Bristol Mercury VIII were small: 1,194 m by 1,307 m ø with 438 kg
The Merlins are 2,25 m long and 1,05 m high 0,78 m wide. with 744 kg

Also with 2200 hp, pushing the Fokker G.1 into league of P-38 and DH.98 Mosquito.
What needs modification in wings and fuselage to support Dog fighting with that engine power...
 

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