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Model Forum / Radio Controlled / Helicopters / August 2003OS 32 - Ring or ABC ?
Okay I've finally decided to upgrade to an OS 32 SX-H. Question is ring or ABC ? Although, I'm new to helis I have over 15 years of running model engines so please rule out the "ring because it's more tolerant of beginner's mistakes" reason. However, I'm happy to consider either based valid opinions. What do you guys fly and recommend and why. Thanks, Nigel > Okay I've finally decided to upgrade to an OS 32 SX-H. > [quoted text clipped - 9 lines] > > Thanks, ABC (strictly ABNickel for OS) engines are slightly harder to start than ringed engines because they're (usually) very tight when cold but that shouldn't be a problem with a 32 - ABN/ABC engines are slightly more powerful than ringed engines of the same capacity. I've had some problems in the past with the Nickel coating flaking off OS ABN engines but that was quite a while ago, so they've likely fixed it by now. [ABN because they can't do any Chrome plating in Japan apparently - poisonous effluent and they're real concious of that.] I have mostly European ABC engines by NovaRossi in my helis... Ciao... [UK]_Nick...  SignatureNick M V Salmon Master Mariner MN(Retd.) My four initials@btinternet.com > ABC (strictly ABNickel for OS) ABC Aluminium-Brass-Chrome. The components used in the production of non-ringed engines. These engines use an aluminium piston, and a chrome or nickel plated brass sleeve. The engine is harder to turn over and start due to the tight fit between the piston and cylinder. This tight fit is what makes the engine more efficient, and powerful. ABC engines must be run in for best performance. ABN Aluminium-Brass-Nickel. The components used in the production of non-ringed engines. These engines use an aluminium piston, and a nickel plated brass sleeve. The engine is harder to turn over and start due to the tight fit between the piston and cylinder. This tight fit is what makes the engine more efficient, and powerful. ABN engines must be run in for best performance. Taken from:- http://www.osengines.com/glossary.html -- Jim Burrill # www.jbphonetech.info # Mobile phone LED backlight colour changing, supply & fitting service. # Liquid damage repairs, Solder pad repairs. # leds@jbphonetech.info Women should be obscene and not heard - Groucho Marx > > Okay I've finally decided to upgrade to an OS 32 SX-H. > > [quoted text clipped - 33 lines] > > My four initials@btinternet.com Unfortunately, OS engines are still advertised as "ABC" but, AFAIK, they only make ABN these days. One of the most powerful engines I ever owned was a 1983 OS 45 FSR ABC, that actually _was_ ABC & it lasted for ages - since then I've had various OS engines but I always stick with their ringed engines nowadays after problems with ABN Nickel 'pealing' off the liner. I had an OS 61 SX pump in a plank that disintegrated after only three weeks, rear main bearing included - Irvine, the UK's OS distributor, replaced all the dud parts under warranty & I then sold it on, I dunno how well it lasted after that... Ciao... [UK]_Nick... > > ABC (strictly ABNickel for OS) > [quoted text clipped - 69 lines] > Checked by AVG anti-virus system (http://www.grisoft.com). > Version: 6.0.504 / Virus Database: 302 - Release Date: 24/07/2003 > [ABN because they can't do any Chrome plating in Japan apparently - > poisonous effluent and they're real concious of that.] What about Enya? Is that not a Japanese company using chrome in their engines? Perhaps the reason for using nickel is less friction and/or lower production cost. I think i heard once on the topic of how to tune two stroke motorcycle engines that nickel plating was great due to low friction. SignatureKjell Gai - news@kagai.org > Nick M V Salmon wrote: > > [quoted text clipped - 3 lines] > What about Enya? Is that not a Japanese company using chrome in their > engines? Dio they or is it also Nickel..? Perhaps Enya get their chrome plating done abroad..? > Perhaps the reason for using nickel is less friction and/or lower > production cost. I think i heard once on the topic of how to tune two > stroke motorcycle engines that nickel plating was great due to low friction. There are various versions of the Nickel plating in OS ABN engines apparently - AFAICR, the low end engines use plain Nickel, higher end use some Silicon Nickel alloy. (Nickasil..? ) Ciao... Nick... Nick M V Salmon wrote: > [ABN because they can't do any Chrome plating in Japan apparently - > poisonous effluent and they're real concious of that.] What about Enya? Is that not a Japanese company using chrome in their engines? Perhaps the reason for using nickel is less friction and/or lower production cost. I think i heard once on the topic of how to tune two stroke motorcycle engines that nickel plating was great due to low friction. SignatureKjell Gai - news@kagai.org You can include Saito too................... |
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