Today's Message Index:
----------------------
1. 05:07 AM - Esqual-Lightning real cruise for best MPG (James, Clive R)
2. 05:45 PM - Re: Esqual-Lightning real cruise for best MPG (Charles Gallagher)
3. 07:07 PM - Re: Esqual-Lightning real cruise for best MPG (Jim Langley)
4. 08:41 PM - Lightning newsletter is online (Jim Langley)
Message 1
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| Subject: | Esqual-Lightning real cruise for best MPG |
As I get nearer to flying my Esqual about I was wondering about the
experience of those who cruise around looking for the best MPG?.
Buz has explained his approaches either setting a fuel flow or a target
cruise speed but generally he's always moving fairly swiftly cause he
travels long distances.
Has anyone tried testing the speed/fuel flow for optimum MPG? If so what
RPM is turning in good figures with a reasonable cruise?
Over here in the UK fuel is silly prices, even the unleaded Mogas I run
my planes on. Also we can't go for too long before we get to the
edge......
If I'm going somewhere but am just enjoying the view and not in any
hurry I'll be looking for a speed/fuel burn that is optimum.
My Jabiru (SP, short wing long tail) cruises at 95 knots for 14 litres,
slowing up drops consumption but she quickly gets nose up and the
dragging along means I don't get much improvement on the mpg, certainly
not enough to warrant flopping along with the nose in the air. Long
winged Jabirus fly at 2100 and get 10 litres an hour.
My Esqual doesn't have the spats or leg fairings on yet and has the old
Esqual cowlings and runs against a drag 'wall' at full throttle (I can
only do this for a moment as it overheats on oil temp). Naturally the
top speed will improve when I've done what I can as will the fuel
consumption but what would be a target cruise revs?.
All the numbers on the tests and other reports are all at fairly high
revs, all about showing how fast the planes are.
What about 100knots? Rev's? Fuel burn? 110? 95? My Esqual seems to sit
in the air nicely even quite slowly courtesy of the wings being a little
too long.
What do folk get with the Lightning at economy cruise?
I do realise that the Jab engine is built to rev more than a
conventional aero engine so maybe there's not much to be had for slowing
down....
Ta, Clive
Message 2
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| Subject: | Re: Esqual-Lightning real cruise for best MPG |
Clive, this article should answer your question,the address is: http://www.
sonexaircraft.com/engines/35_dollar_burger.html . Jab3300 in Sonex with-
Aero Carb. The cross county speeds gave 34 us/mpg and 36 out for a Sunday f
ly. Keep us posted on your results. Rgs. CRG
-- On Sun, 8/10/08, James, Clive R <clive.james@uk.bp.com> wrote:
From: James, Clive R <clive.james@uk.bp.com>
Subject: Lightning-List: Esqual-Lightning real cruise for best MPG
Esqual-Lightning real cruise for best MPG
As I get nearer to flying my Esqual about I was wondering about the experie
nce of those who cruise around looking for the best MPG?.
Buz has explained his approaches either setting a fuel flow or a target cru
ise speed but generally he's always moving fairly swiftly cause he travels
long distances.
-
Has anyone tried testing the speed/fuel flow for optimum MPG? If so what RP
M is turning in good figures with a reasonable cruise?
Over here in the UK fuel is silly prices, even the unleaded Mogas I run my
planes on. Also we can't go for too long before we get to the edge=85...
If I'm going somewhere but am just enjoying the view and not in any hurry I
'll be looking for a speed/fuel burn that is optimum.
My Jabiru (SP, short wing long tail) cruises at 95 knots for 14 litres, slo
wing up drops consumption but she quickly gets nose up and the dragging alo
ng means I don't get much improvement on the mpg, certainly not enough to w
arrant flopping along with the nose in the air. Long winged Jabirus fly at
2100 and get 10 litres an hour.
My Esqual doesn't have the spats or leg fairings on yet and has the old Esq
ual cowlings and runs against a drag 'wall' at full throttle (I can only do
this for a moment as it overheats on oil temp). Naturally the top speed wi
ll improve when I've done what I can as will the fuel consumption but what
would be a target cruise revs?.
-
All the numbers on the tests and other reports are all at fairly high revs,
all about showing how fast the planes are.
What about 100knots? Rev's? Fuel burn? 110? 95? My Esqual seems to sit in t
he air nicely even quite slowly courtesy of the wings being a little too lo
ng.
What do folk get with the Lightning at economy cruise?
I do realise that the Jab engine is built to rev more than a conventional a
ero engine so maybe there's not much to be had for slowing down=85.
Ta, Clive
=0A=0A=0A
Message 3
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| Subject: | Esqual-Lightning real cruise for best MPG |
Charles.
What are the specific advantages of the aero carb besides more economy?
Also, from reading the article, it sounds like the guy was adjusting the
mixture? Do you do this with the aero carb?
Thanks
Jim!
From: owner-lightning-list-server@matronics.com
[mailto:owner-lightning-list-server@matronics.com] On Behalf Of Charles
Gallagher
Sent: Sunday, August 10, 2008 8:44 PM
Subject: Re: Lightning-List: Esqual-Lightning real cruise for best MPG
Clive, this article should answer your question,the address is:
http://www.sonexaircraft.com/engines/35_dollar_burger.html . Jab3300 in
Sonex with Aero Carb. The cross county speeds gave 34 us/mpg and 36 out for
a Sunday fly. Keep us posted on your results. Rgs. CRG
-- On Sun, 8/10/08, James, Clive R <clive.james@uk.bp.com> wrote:
From: James, Clive R <clive.james@uk.bp.com>
Subject: Lightning-List: Esqual-Lightning real cruise for best MPG
As I get nearer to flying my Esqual about I was wondering about the
experience of those who cruise around looking for the best MPG?.
Buz has explained his approaches either setting a fuel flow or a target
cruise speed but generally he's always moving fairly swiftly cause he
travels long distances.
Has anyone tried testing the speed/fuel flow for optimum MPG? If so what RPM
is turning in good figures with a reasonable cruise?
Over here in the UK fuel is silly prices, even the unleaded Mogas I run my
planes on. Also we can't go for too long before we get to the edge....
If I'm going somewhere but am just enjoying the view and not in any hurry
I'll be looking for a speed/fuel burn that is optimum.
My Jabiru (SP, short wing long tail) cruises at 95 knots for 14 litres,
slowing up drops consumption but she quickly gets nose up and the dragging
along means I don't get much improvement on the mpg, certainly not enough to
warrant flopping along with the nose in the air. Long winged Jabirus fly at
2100 and get 10 litres an hour.
My Esqual doesn't have the spats or leg fairings on yet and has the old
Esqual cowlings and runs against a drag 'wall' at full throttle (I can only
do this for a moment as it overheats on oil temp). Naturally the top speed
will improve when I've done what I can as will the fuel consumption but what
would be a target cruise revs?.
All the numbers on the tests and other reports are all at fairly high revs,
all about showing how fast the planes are.
What about 100knots? Rev's? Fuel burn? 110? 95? My Esqual seems to sit in
the air nicely even quite slowly courtesy of the wings being a little too
long.
What do folk get with the Lightning at economy cruise?
I do realise that the Jab engine is built to rev more than a conventional
aero engine so maybe there's not much to be had for slowing down..
Ta, Clive
http://www.mw" target="_blank"
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Message 4
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| Subject: | Lightning newsletter is online |
Well, I am back from Alaska and put the latest newsletter up on the web site
with all the rest. Once again, great job Buz and Linda putting things
together and thanks to all who contributed.
The newsletter can be found at www.jimslightning.com and click on the
newsletter link.
I also added a page that will log my flight test activities. It is just a
table for now, but I will add more information as a progress with the flight
testing. As always, any suggestions are welcome.
Jim!
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