Today's Message Index:
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1. 12:43 AM - Re: What did you do with your Europa this week - 05/24 (Area-51)
2. 04:49 AM - Re: What did you do with your Europa this week - 05/24 (n7188u)
3. 08:13 PM - Re: What did you do with your Europa this week - 05/24 (Area-51)
Message 1
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| Subject: | Re: What did you do with your Europa this week - 05/24 |
Thanks for that; yes it is pretty amazing. I've been running simulations on the
3d cad model and as is from factory there is not a lot left to improve upon to
get more speed; really liking it... I've only got 80hp under the hood and 19deg
pitch set on the Bolly; gives me 1000'/min at 80kt one up... is your's 100hp?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=507353#507353
Message 2
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| Subject: | Re: What did you do with your Europa this week - 05/24 |
You welcome. Yes, I have the 100hp. I have to say I installed the speed kit and
Im happy I did. Its not a wow increase in speed but at this level a little improvement
feels really good. Maybe 3-4 knots.
The biggest jump was with the Duc prop (from a Woodcomp that provided dismal performance
except on crazy short takeoff rolls). Cant imagine what this plane would
do with CS.
I did have a question for you. I do have a wheel fairing kit for the mono but dont
know if the extra weight is worth the install. I have read that the shell
is behind a turbulent area due to the cooling duct exhaust so the speed gain is
nill. What do you or the group think? I think it would be worth the try because
of the sealing of the tunnel but its installation sure will add some weight
and complicate the airplane a little (which I try not to do). But I am curious.
Chris
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http://forums.matronics.com/viewtopic.php?p=507354#507354
Message 3
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| Subject: | Re: What did you do with your Europa this week - 05/24 |
Initial tests using the digital wind tunnel show marginal streamline improvement
with a maingear wheel fairing installed; same with the speed kit. the factory
standard lower engine cowl on the classic generates around 25kg of lift from
the exit chute, i haven't run tests on the xs cowl to compare but it would be
around the same... the maingear when retracted sits within fairly still swirling
air when retracted and so affects drag very little. From experience i would
say the maingear cowl would reduce turbulence dB noise more than anything.
Deleting the lower engine cowl chute improves forward performance with the loss
of that 25kg lift and exit suction for engine cooling; maingear fairing works
well in this scenario however the current shape is not optimum... Rear wing
root fairings offer the best performance increase but only within a small AoA
band with the flaps retracted. I have been toying with a STOL wing design which
is proving very affective far.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=507363#507363
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