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Home✈️Aircraft🚁HelicopterCentury Radikal G20-30 N640 Hawk Predator › Is there a big difference between the Hawk Pro, III, IV, and Sport models?
05-21-2007 02:21 PM  13 years ago
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szangvil

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Haifa, Israel

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Is there a big difference between the Hawk Pro, III, IV, and Sport models?
Is there a big difference between the Hawk Pro, III, IV, and Sport models?
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05-21-2007 06:55 PM  13 years ago
bellecrank

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Canada

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Hawk III
- 5mm spindle with very soft dampers
- short 8mm mainshaft that resulted in a max 18 degree pitch range
- bushings riding on sleeves on most control bellcranks & control arms. this was a lot better system then what some others where using which had the bushings riding directly on the threads of the mounting screws (a full bearing upgrade was available for about $19.00)
- GRP lower frames with fuel tank at the rear and a gyro mount under the mainshaft.
- wire-in-tube tail rotor drive system
- small 8 0z. fuel tank
- 3mm blade grip bolts

Hawk IV & Sport (some important changes for 3D)
- longer 10mm mainshaft that offers a 24 degree collective pitch range. Of course this required a rotor bloke with longer washout guide pins, a washout hub with a larger diameter, a swashplate with a larger diameter ball.
- Also, due to the longer shaft the elevatior bellcrank has a longer A-arm section.
- larger 10 oz. fuel tank
- 4mm blade grip bolts

Hawk Pro (some great upgrades)
- full bearing complement
- 5mm feathering spindle now include special spacers to fit into the dampers to really stiffen the damping (changing to the optional hard red H13181A units, results in great extreme 3D damping).
- metal lower frames from the Raven that placed the fuel tank almost directly under the mainshaft.
- aluminum torque tube drive system for the tail rotor.
- longer collective arm for less interaction.
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05-21-2007 10:09 PM  13 years ago
szangvil

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Haifa, Israel

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Thanks bellecrank!
Which one is the newest model?
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05-21-2007 10:13 PM  13 years ago
Spitfire_mk5

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Canada

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Hawk pro is the current one.
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05-22-2007 09:50 AM  13 years ago
szangvil

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Haifa, Israel

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ok, cool. I got the Hawk Pro :-)
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