OS 40VF Info
Just wonder is this a good speedy little engine? I haven't been able to find any info on it
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RE: OS 40VF Info
They're wonderful engines and the only OS I'll ever use but my application has nothing to do with speed even though I use a pipe with them. Their port timings are actually very mild which is exactly what I want, lots of low down torque. I've never seen any HP figures for them but judging by their port timings I'd suspect they get peak HP at around 15,000 revs.
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RE: OS 40VF Info
ORIGINAL: downunder They're wonderful engines and the only OS I'll ever use but my application has nothing to do with speed even though I use a pipe with them. Their port timings are actually very mild which is exactly what I want, lots of low down torque. I've never seen any HP figures for them but judging by their port timings I'd suspect they get peak HP at around 15,000 revs. |
RE: OS 40VF Info
In an old thread I dug up the futaba support guy called it essentially a rear exhaust .40 FSR, and recommended settting it for about 13k on the ground with a pipe, which I guess would put it in the low to mid-14's in the air..? Does this jive with what you've seen? Just curious as I am close to scoring a NIB .40 FSR.. more wheedling required.
MJD |
RE: OS 40VF Info
OS rated the 40VF ABC at 1.25 HP @16,000 RPM. The 40FSR ABC was rated at 1.2HP@16,000RPM and the 40FSR was rated at 1.15HP@ 16,000RPM. This is off the OS engine spec sheet.
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RE: OS 40VF Info
There you go - they all sound mighty similar. So it's no giant-killer, but a decent strong .40 anyways.
MJD |
RE: OS 40VF Info
What airframe are you using the 40 VF in?
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RE: OS 40VF Info
ORIGINAL: Broken Wings Brian, I have some Venturi for you......:D |
RE: OS 40VF Info
The engine I am looking at has a carb on it. I do fly CL are venturies still out their? Also whats a good CL airframe for this engine
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RE: OS 40VF Info
Venturis are available from [link=http://www.clstunt.com/products.htm]SSW[/link] and there's a good post on setting up a 40VF [link=http://www.clstunt.com/htdocs/dc/dcboard.php?az=show_topic&forum=103&topic_id=20022 3&mesg_id=200223&listing_type=search#200235]here[/link] at post #6.
As for which model would suit, just about anything available :). I'm using mine in an overweight (68 ounce) model with 680 sq inch wing and it has no problem at all. |
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