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Author Topic: engine comparison ?  (Read 1185 times)

Offline jim gilmore

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engine comparison ?
« on: April 23, 2017, 03:41:44 PM »

I am curious if anyone could give a comparison of some of the commonly available engine how they compare in power to each other, or maybe compare to say a fox 35 ?

I am talking about engines like la .25
or the asp .25.

Offline Brad LaPointe

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Re: engine comparison ?
« Reply #1 on: April 23, 2017, 04:38:58 PM »
When they become available again consider the Brodak .40 . Half an ounce heavier than a La .25 and lighter than an ASP .25 . A very good replacement for the Fox .35 . I really like mine .

Brad

Offline jim gilmore

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Re: engine comparison ?
« Reply #2 on: April 25, 2017, 10:35:00 AM »
I was hoping to get an idea of how these engines compare to each other... I know what a fox .335 can do and would think a 40 is quite a bit more ??

Offline Tim Wescott

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Re: engine comparison ?
« Reply #3 on: April 25, 2017, 10:48:16 AM »
LA25 -- good steady runner, nice "stunt run"

ASP25 -- unknown, probably "wants" to spin much faster than an LA25, heavier.  I'd try it with a 9x3 (yes, 3) prop and expect it to fly a lot more plane than the LA25 -- but I'd also anticipate it being not a good stunt engine, but one needs to try it to be sure.
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Offline Chris Wilson

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Re: engine comparison ?
« Reply #4 on: April 30, 2017, 04:41:19 PM »
I am curious if anyone could give a comparison of some of the commonly available engine how they compare in power to each other, or maybe compare to say a fox 35 ?

I am talking about engines like la .25
or the asp .25.


There is a lot here to read about -

http://sceptreflight.net/Model%20Engine%20Tests/Index.html

Bit most engine testers today don't seem to do these types of exhaustive tests.
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