Today's Message Index:
----------------------
1. 12:46 AM - 50% loss say some (MPPalmer@aol.com)
2. 07:23 AM - Re: 50% loss say some (steve korney)
3. 08:47 AM - Re: 50% loss say some (Craymondw@aol.com)
4. 09:04 AM - Re: 50% loss say some (Craymondw@AOL.COM)
5. 09:21 AM - Re: 50% loss say some (steve korney)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | 50% loss say some |
A NASA study
http://www.n91cz.com/Interesting_Technical_Reports/NASA_CR3405.pdf
suggest the conventional baffle cowl is only 50% efficient at recovering ram
air pressure.
I tried to baffle ours tightly with that thick RTV baffle material, and from
the looks of the wear patterns, it seems tight. (I did the wrap around the
front too, to keep air from spilling back out the front.) But I must be losing
some air at the inlets, since they don't couple to the upper cowl directly, as
is done with an enclosed plenum.
That's why I'm looking for someone who has tried it both ways and can report
and night/day difference in CHT's on the Glasair. (II)
OTOH, I guess it can't hurt to build an enclosed plenum. Can't hurt anything,
can only make it better.
Mike Palmer <><<BR><BR><BR>**************************************<BR> See what's
free at
http://www.aol.com.
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | 50% loss say some |
Mike...
I made a enclosed plenum around my engine and lost about 25 degrees of CHT
temps... The temps dropped from 375 average to 350 average... Those are
good numbers... Picture attached...
Best... Steve
----Original Message Follows----
From: MPPalmer@aol.com
Subject: Glasair-List: 50% loss say some
A NASA study
http://www.n91cz.com/Interesting_Technical_Reports/NASA_CR3405.pdf
suggest the conventional baffle cowl is only 50% efficient at recovering ram
air pressure.
I tried to baffle ours tightly with that thick RTV baffle material, and from
the looks of the wear patterns, it seems tight. (I did the wrap around the
front too, to keep air from spilling back out the front.) But I must be
losing
some air at the inlets, since they don't couple to the upper cowl directly,
as
is done with an enclosed plenum.
That's why I'm looking for someone who has tried it both ways and can report
and night/day difference in CHT's on the Glasair. (II)
OTOH, I guess it can't hurt to build an enclosed plenum. Can't hurt
anything,
can only make it better.
Mike Palmer <><<BR><BR><BR>**************************************<BR> See
what's free at
http://www.aol.com.
_________________________________________________________________
Make every IM count. Download Messenger and join the im Initiative now.
Its free. http://im.live.com/messenger/im/home/?source=TAGHM_June07
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 50% loss say some |
I have a Gl2SFT with a 200 HP Lycoming and my cylinder head temperatures are
290 degrees during the winter months and 325 degrees during the summer
months. My oil temperature during the winter months are around 190 degrees and
during the summer months range around 210 degrees. I have ramp cooling with the
cowling inlet top air foiled. And I use silicone to seal the engine. The
front baffle is shaped to meet the spinner fairing and I cut out a tire inner
tube to form a half moon shaped bulb like seal. I keep my engine temperature
down by climbing out at no less than 140 mph.
************************************** See what's free at http://www.aol.com.
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 50% loss say some |
Nice installation
************************************** See what's free at http://www.aol.com.
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: 50% loss say some |
Thank... I have a lot of info on a Glasair I RG ... 3500 hours and
counting.... Fast and Fun...
Best... Steve
----Original Message Follows----
From: Craymondw@aol.com
Subject: Re: Glasair-List: 50% loss say some
Nice installation
************************************** See what's free at
http://www.aol.com.
_________________________________________________________________
Need a break? Find your escape route with Live Search Maps.
http://maps.live.com/default.aspx?ss=Restaurants~Hotels~Amusement%20Park&cp=33.832922~-117.915659&style=r&lvl=13&tilt=-90&dir=0&alt=-1000&scene=1118863&encType=1&FORM=MGAC01
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|