E Series info
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llangston1
- Posts: 8
- Joined: Tue Oct 29, 2019 9:54 pm
E Series info
Has anyone purchased the Lew Gage book on E Series engines off the American Bonanza society website? I was wondering if it was worth the money. Are there any useful tips and tricks relative to us Navion drivers?
Re: E Series info
Leo,
I haven't purchased the Lew Gage book yet, but I intend to in the very near future. In the interim, I've been researching the BeechTalk forum for E225 info. What I've found is information of interest is often buried in threads and not easily found. I recently discovered info on proper throttle use for takeoff and climb for the E series engines. The specific item of interest is the peculiarity of the enrichment circuit in the Bendix pressure carb. Per the thread you do not throttle back to 23" manifold and then reduce RPM while climbing. You leave the throttle in, and after positive rate climb is established, gear and flaps up, reduce the RPM to 2300 leaving throttle at full power. This basically means we're operating over square, something like 27" and 2300 RPM. When manifold pressure starts to decrease due to the climb and is below 26.5" then you can back the throttle back about 1/2". This keeps the carb enrichment circuits functioning, the enrichment is needed to keep CHT in check. Once leveled at cruise altitude, then throttle back and adjust RPM as needed for whatever performance profile you choose and lean as appropriate.
I'm certain there are significant nuggets of operational tips for the E-Series engines which directly apply to the Navion. Don't need it at the moment, prop is off for the required AD inspection.
Regards,
Richard Beaver
Klein, TX
'48 Navion N4262K
I haven't purchased the Lew Gage book yet, but I intend to in the very near future. In the interim, I've been researching the BeechTalk forum for E225 info. What I've found is information of interest is often buried in threads and not easily found. I recently discovered info on proper throttle use for takeoff and climb for the E series engines. The specific item of interest is the peculiarity of the enrichment circuit in the Bendix pressure carb. Per the thread you do not throttle back to 23" manifold and then reduce RPM while climbing. You leave the throttle in, and after positive rate climb is established, gear and flaps up, reduce the RPM to 2300 leaving throttle at full power. This basically means we're operating over square, something like 27" and 2300 RPM. When manifold pressure starts to decrease due to the climb and is below 26.5" then you can back the throttle back about 1/2". This keeps the carb enrichment circuits functioning, the enrichment is needed to keep CHT in check. Once leveled at cruise altitude, then throttle back and adjust RPM as needed for whatever performance profile you choose and lean as appropriate.
I'm certain there are significant nuggets of operational tips for the E-Series engines which directly apply to the Navion. Don't need it at the moment, prop is off for the required AD inspection.
Regards,
Richard Beaver
Klein, TX
'48 Navion N4262K
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aeroparkin
- Posts: 1
- Joined: Fri Nov 08, 2019 10:59 pm
Re: E Series info
The Beechcraft forum is a excellent site for info and I have Lew Gages book and it is also excellent .
Re: E Series info
As a newbie and maybe about to get into 185-9 ops............for the standard airframe with no tips, what sort of IAS could I expect at cruise altitude around 7 or 8K ........and down around 2K? Trying to get a general "ballpark" for what I can do with the plane.
Rick Clarke
Rick Clarke