Today's Message Index:
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1. 12:05 PM - 914 operations with wastegate closed Question kinda answered ()
2. 03:52 PM - Re: Battery for Rotax 912S (John M. Goodings)
3. 04:40 PM - Re: 912uls battery? (Steve Crimm)
Message 1
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| Subject: | 914 operations with wastegate closed Question kinda |
answered
--> RotaxEngines-List message posted by: <rparigor@suffolk.lib.ny.us>
OK I talked with Lockwood today about 914 Operators manual:
"Take-off (as per RTCA DO 178 B - with inactive TCU)
It is kinda sorta like "Emergency War Power" as used on a P-51, however
only for take offs.
The computer of the 914 has exclusive rights to open the wastegate, either
for good, or no good reasons.
If making a life critical take off depending on max power, if all of a
sudden it was not there, that would not be a good thing.
Thus on a take off that depends on max power being available,
recommendation is to place TCU-switch in "OFF" position so computer can
not reduce power.
Here is the exact wording, I think it may be in wrong order:
10.3.6.2) Take-off (as per RTCA DO 178 B - with inactive TCU)
- Take-off performance until the boost pressure stabilizes within the
limits of operation.
- TCU-switch in "OFF" position.
- Shift throttle lever to 115% (take-off performance).
- After reaching the critical altitude switch on the TCU.
- The auxiliary fuel pump may be switched off after the take-off.
This does not quite make sense to me, it sounds better like:
10.3.6.2) Take-off (as per RTCA DO 178 B - with inactive TCU)
- Shift throttle lever to 115% (take-off performance).
- Wait until the boost pressure stabilizes within the limits of operation.
- TCU-switch in "OFF" position.
- After reaching the critical altitude switch on the TCU.
- The auxiliary fuel pump may be switched off after the take-off.
Any comments?
Ron Parigoris
Message 2
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| Subject: | Re: Battery for Rotax 912S |
--> RotaxEngines-List message posted by: "John M. Goodings" <goodings@yorku.ca>
We have a Gill G25 (pink) battery in our CH601HD with R912S mounted on the
firewall. It is a little bigger than some, a little heavier, and a little
more expensive. However, it is now 3 years old, and has given not the
slightest problem from day 1. I follow the recommended starting procedure
for Rotax engines - throttle full closed, choke full on, when it catches
(in a few seconds), get the choke off in less than half a minute, and
set the throttle to give about 2000/2200 RPM (engine, not prop).
John Goodings, C-FGPJ, CH601HD Zodiac with R912S, Toronto and Waterloo.
Message 3
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--> RotaxEngines-List message posted by: "Steve Crimm" <steve.crimm@stephenscott.com>
I just today got my replacement battery, an Xtreme Plus XP12-18 from Apex
Battery, a sealed gel cell, www.apexbattery.com. The cost including
shipping was $42.50.
Last Saturday when I went to go fly my Europa with a 912 ULS and hit the
button and it just went click. I jump started the A/C and ran it for 20
minutes then tried a start again on the battery with the same
results...click. The battery was five years old and hadn't given me a
moments trouble.
Steve
N42AH
Europa XS
-----Original Message-----
From: owner-rotaxengines-list-server@matronics.com
[mailto:owner-rotaxengines-list-server@matronics.com] On Behalf Of SJA
Sent: Saturday, March 04, 2006 19:58
Subject: RotaxEngines-List: 912uls battery?
--> RotaxEngines-List message posted by: "SJA" <salbore@netzero.net>
I have a 912uls. Have a pre-heat and float charger. And am still having
trouble with cold starting this engine.
What battery are you using with this engine? Any suggestions?
Thanks.
SJA
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