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Engines, VA vs. AME
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Topic: Engines, VA vs. AME (Read 747 times)
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flydean1
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Engines, VA vs. AME
«
on:
July 24, 2017, 10:27:31 PM »
I have acquired a few 1/2A engines over the years. Of course, the real powerhouses are the Cyclon's and related clones, but the first to really challenge the Cox Tee Dee domination of 1/2A was, I think the VA starting with the old split case. I have seen all vintages of VA engines used in Free Flight (Always Capitalize) competition, the MkII being the most powerful, but don't recall seeing any Norvel/AME engines used. I did use one on my test-bed Mini-Pearl for a couple contests, and it seemed to pull it pretty well. Anyone have any experience with these engines? They seem to be pretty well made, and I was able to score a few quite reasonably on eBay.
Thoughts??
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glidermaster
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Re: Engines, VA vs. AME
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Reply #1 on:
July 25, 2017, 01:02:54 AM »
I have one AME, and I really like it. Powerful, easy to start and adjust, consistent.
Not much of a sample size, I know, but if I could stay on track for 5 minutes, I'd finish the model I started for it.
Keen to see what other think, too.
John
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Gliders are a part of me.
ffkiwi
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Re: Engines, VA vs. AME
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Reply #2 on:
July 25, 2017, 06:43:37 AM »
I think the AME's are more mass produced than the VAs-and hence likely to be of somewhat lower quality-that being said-the R/C fliers seem to use them-but they don't seem to have made much of a headway into contest FF-though the current NZ Payload record-which I was timekeeper for (held by Bernard Scott) was set with an AME......!
I note that the Stels 049 has not received a mention in this context (lightweight 1/2A engines)-I have two-one SE, one RE-plus one of the extremely rare 061 models-which are a completely different design to the 049....
ChrisM
'ffkiwi'
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danberry
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Re: Engines, VA vs. AME
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Reply #3 on:
July 29, 2017, 10:19:26 PM »
I flew an AME for several years. If it's a good one it will sing.
Quality Control was spotty on them is what I heard.
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FF Bruce
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Re: Engines, VA vs. AME
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Reply #4 on:
July 30, 2017, 12:26:30 AM »
Since the Stels was brought up,it is one of the best 1\2 A motors I have ever had.But there are a few variations,the one with the split rear exhaust that do not connect is, the good one.Mine turned (and still does) a 5.7x2.2 apc prop right at 29k with 45% nitro. The weight is the same as the TeeDee. This is the motor I used to win the America's cup in 1995. My friend Bob Stalick has one that is just as good.
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Shackas
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Re: Engines, VA vs. AME
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Reply #5 on:
July 31, 2017, 05:59:38 AM »
Having played with both the VA and AME (and V) engines over the years, my gut feeling is that a properly setup VA Mk I will go harder than an AME 049 on a FF-suitable prop, in part because there's a bit more scope to optimize the fits and timing of the VA (by virtue of the RYOT feature).
However, the AME's I've used all gave a minimum of adequate performance. As noted in other posts though, some were just better than others. FWIW, my current 1/2A power model (Orbiteer) has an AME 061 sitting the front turning an APC 5.5 x 2.5 on 30% nitro (20% castor) fuel. It logged 8 x 2 min maxes (I think it was an 8 sec motor run for locked down models) at this years AFFS Champs which suited me fine.
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