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Quest and Kyosho Kyosho Caliber, Kyosho Helicopters


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Old 12-20-2018, 08:38 PM   #1 (permalink)
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Default New to me Caliber 30 - recommended blade size?

So was on eBay awhile back and was feeling nostalgic so looked up Kyosho. Long story short, ended up with a pretty much complete, RTF Caliber 30. I started flying decades ago with a Concept 30 and had a Caliber at one point but had sold it. The Caliber was missing a canopy but I was able to get one direct from Kyosho America(literally think I purchased the last one).

I hovered it a little today and it is still a nice little heli. I have no plans to do 3D with it; got it just for old times sake to fly around but had a question - it has an O.S. 32SX and 550mm blades. Would it do better with shorter blades? I feel like the little OS is working pretty hard. I may consider an OS 37 down the road if I can find one but was wondering for now if shorter blades(500mm?) would help or not really make a difference.

Thanks for any input!
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Old 01-06-2019, 09:18 AM   #2 (permalink)
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I flew a Caliber 30 for years with a 32 and 550 blades and you are correct in that it is under-powered with that blade length. I think that 500-525 would be better if you can find them.
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Old 01-12-2019, 05:02 PM   #3 (permalink)
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Appreciate the input. Will see if I can find some 500mm blades and see how it flies in the Spring.
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Old 01-15-2019, 08:42 PM   #4 (permalink)
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The Caliber 30 is designed for 550 size blades. The OS32SX-H has no trouble turning 550ís at around 1700rpm which is perfect for sport flying. The other engine option is the OS37SZ-H but it is not required.

If someone suggests the aircraft is underpowered they should really qualify what it is underpowered for.

If there is a requirement for more power then Quest have an OS50/55 version based on the Caliber 4.
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