Will add my two bits to the discussion. Have been using Airmaster prop with
three blade warp drive for 550 hours. No sig problems and was able to repl
ace one blade without difficulty when one blade damaged. Had a wire in the h
ub break while flying and it no sig problem. Just stayed at the climb rpm t
ill got back on ground.
Have been happy with it...though have never flown with any other prop.
Ken carpenter
N212KC. 914 mono
Sent from my iPad
On Jun 13, 2013, at 3:43 PM, "Bud Yerly" <budyerly@msn.com> wrote:
> Remi,
> I am distressed that you are still having cooling issues. If you did all I
described in the cooling 101 article printed in the Europa Flyer, it should
cool handily.
>
> I can operate for 25 minutes on the ground and not hit 275F on a 90F day.
The XS cowl is not optimal, but the root width is the same with my 332 as y
ours.
> The mono exit from your engine compartment is probably only an inch wide, b
ut if your ducting is sealed you should be able to cool very well in Europe.
>
> I gave Martin my ideas for a root extension for the ferrule on the WD blad
e, as I just don't have time to make one up. It basically is an extension t
o the blade and a riveted airfoil shape to the spinner similar to the new bl
ades on the C130J and other turboprop engine/prop combinations. That will h
elp a breeze close in to the cowl, but is intended for cruise performance in
crease.
>
> Check your ducting carefully. If you did not see my changes for the XS co
wl, refer to my website or Airmaster's website (Europa Application) for down
load.
>
> Bud Yerly
> www.customflightcreations.com
> ----- Original Message -----
> From: Guerner Remi
> To: Europa-List Digest Server
> Sent: Tuesday, June 11, 2013 4:11 AM
> Subject: Europa-List: Re: Woodcomp or Airmaster Prop
>
>
> <<<<The "extra" twist for enhancement of cowl port airflow is not a
> factor in a 912s application.>>>>>
>
> Hi Ira,
> I have 630 hours on my Airmaster AP332/WarpDrive and I am very happy with t
he reliability and performance of this prop. But the cooling problem on the g
round with the WarpDrive blades is a big inconvenience, with any engine. All
Europas I know, fitted with the WarpDrive prop, fixed or variable pitch, ev
en with the 80 HP 912 have this ground cooling problem as soon as they have t
o wait more than a few minutes at the holding point in hot weather. With the
existing Europa XS cowl, I believe the only solution would be to have wide
r blades at the root and higher twist, as offered by Woodcomp.
> Regards
> Remi Guerner
> F-PGKL, XS Monowheel, 912ULS, 1014 hours.
> p; Features Chat, http://www.matronnbsp; via the Web title=htt
p://forums.matronics.com/ href="http://forums.matronics.com";>http://forums
.matronics.com
> _p; generous bsp; title=http://www.matronics.
com/contribution href="http://www.matronics.com/contribution";>http://www.m
atronics.com/c================
>
>
>
>
>
==========================
=========
==========================
=========
==========================
=========
==========================
=========
>
|