Today's Message Index:
----------------------
1. 01:12 PM - Weight & Balance (BobbyPaulk@comcast.net)
2. 01:43 PM - Re: Weight & Balance (Graeme@Coletoolentre)
3. 02:28 PM - Re: Weight & Balance (Jeff)
4. 02:36 PM - Re: Weight & Balance (Walter Carey)
5. 08:30 PM - Re: Weight & Balance (Mark Hubelbank)
Message 1
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| Subject: | Weight & Balance |
List,
My friend Tom has a 601 XL "B" similar to mine.
Both have Jab.3300 engines and similar instrument panels. The question is why the
difference in nose wheel weights.
His wheel weights are RW 290.2 LW 306.6 and 200.2 on the nose. Total Weight 797#.
My weights are RW 272 LW 290 and 241 on the nose. Total weight is 803. With
only 6 pounds difference in total weight there is 41 pounds more on my nose wheel
than his. He also has a larger battery on the firewall where mine is also
located. We both have Icom Radio, Garmin Transponders, a mix of Electronic and
Steam gauges in the panels. Can we get several builders with the near same set
up to post their weights?? Can anyone tell why the difference??
With 2 people on board I can fly to min. fuel without going aft the CG limit. Tom
has to land with 10 - 11 gal. of fuel on board to stay in the published limits.
Both of us have checked the weights several times with different scales.
Bobby
N131BP
134 hrs
Jab. 3300
Message 2
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| From: | "Graeme@Coletoolentre" <graeme@coletoolcentre.com.au> |
| Subject: | Re: Weight & Balance |
Question were both planes set up for weight and balance in the flying
attitude.
this can have some effect as the weight distribution over the back wheel
changes
graemecns
----- Original Message -----
From: BobbyPaulk@comcast.net
To: zenith601-list@matronics.com
Sent: Thursday, December 15, 2011 7:07 AM
Subject: Zenith601-List: Weight & Balance
List,
My friend Tom has a 601 XL "B" similar to mine.
Both have Jab.3300 engines and similar instrument panels. The question
is why the difference in nose wheel weights.
His wheel weights are RW 290.2 LW 306.6 and 200.2 on the nose. Total
Weight 797#. My weights are RW 272 LW 290 and 241 on the nose. Total
weight is 803. With only 6 pounds difference in total weight there is 41
pounds more on my nose wheel than his. He also has a larger battery on
the firewall where mine is also located. We both have Icom Radio, Garmin
Transponders, a mix of Electronic and Steam gauges in the panels. Can we
get several builders with the near same set up to post their weights??
Can anyone tell why the difference??
With 2 people on board I can fly to min. fuel without going aft the CG
limit. Tom has to land with 10 - 11 gal. of fuel on board to stay in the
published limits.
Both of us have checked the weights several times with different
scales.
Bobby
N131BP
134 hrs
Jab. 3300
Message 3
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| Subject: | Re: Weight & Balance |
Are the main gear legs positioned the same? I.e. slanted fwd or rearward.
Sent from my iPad
On Dec 14, 2011, at 4:40 PM, "Graeme@Coletoolentre" <graeme@coletoolcentre.c
om.au> wrote:
> Question were both planes set up for weight and balance in the flying atti
tude.
> this can have some effect as the weight distribution over the back wheel c
hanges
>
> graemecns
>
>
> ----- Original Message -----
> From: BobbyPaulk@comcast.net
> To: zenith601-list@matronics.com
> Sent: Thursday, December 15, 2011 7:07 AM
> Subject: Zenith601-List: Weight & Balance
>
> List,
> My friend Tom has a 601 XL "B" similar to mine.
> Both have Jab.3300 engines and similar instrument panels. The question is w
hy the difference in nose wheel weights.
> His wheel weights are RW 290.2 LW 306.6 and 200.2 on the nose. Total Weigh
t 797#. My weights are RW 272 LW 290 and 241 on the nose. Total weight is 80
3. With only 6 pounds difference in total weight there is 41 pounds more on m
y nose wheel than his. He also has a larger battery on the firewall where mi
ne is also located. We both have Icom Radio, Garmin Transponders, a mix of E
lectronic and Steam gauges in the panels. Can we get several builders with t
he near same set up to post their weights?? Can anyone tell why the differen
ce??
> With 2 people on board I can fly to min. fuel without going aft the CG lim
it. Tom has to land with 10 - 11 gal. of fuel on board to stay in the publis
hed limits.
> Both of us have checked the weights several times with different scales.
>
> Bobby
> N131BP
> 134 hrs
> Jab. 3300
>
>
> href="http://www.aeroelectric.com">www.aeroelectric.com
> href="http://www.buildersbooks.com">www.buildersbooks.com
> href="http://www.homebuilthelp.com">www.homebuilthelp.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/ch
ref="http://www.matronics.com/Navigator?Zenith601-List">http://www.matroni
cs.com/Navigator?Zenith601-List
> href="http://forums.matronics.com">http://forums.matronics.com
> href="http://www.matronics.com/contribution">http://www.matronics.com/c
>
>
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Message 4
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| Subject: | Re: Weight & Balance |
Bobby,=0ACheck to see if maybe the one-piece aluminum landing gear on each
airplane is =0Ainstalled-differently. Check distance-of main gear from
backside of firewall to =0Aforward edgle of one-piece gear. Also check to s
ee if the gear on each airplane =0Ais installed the same way,-taper edge
or flat edge pointed in the same =0Adirection.--Differences in either
-could possibly explain differences in nose =0Aweight and CG.-Landing w
ith 10-11 gallons of fuel left to stay within the CG =0Aneeds to be fixed i
f at all possible. That's a waste of good flying time and =0Acould become d
angerous.=0A=0AWalt Carey=0A601XL (50% complete)=0AJabiru 3300A=0ABeavercre
ek, OH-----=0A=0A=0A=0A=0A________________________________=0AFrom
: "BobbyPaulk@comcast.net" <BobbyPaulk@comcast.net>=0ATo: zenith601-list@ma
tronics.com=0ASent: Wed, December 14, 2011 4:07:43 PM=0ASubject: Zenith601-
List: Weight & Balance=0A=0A=0AList,=0AMy friend Tom has a 601 XL "B" simil
ar to mine.=0ABoth have Jab.3300 engines and similar instrument panels. The
question is why =0Athe difference in nose wheel weights.=0AHis wheel weigh
ts are RW 290.2 LW 306.6 and 200.2 on the nose. Total Weight =0A797#. My we
ights are RW 272 LW 290 and 241 on the nose. Total weight is 803. =0AWith o
nly 6 pounds difference in total weight there is 41 pounds more on my nose
=0Awheel than his. He also has a larger battery on the firewall where mine
is also =0Alocated. We both have Icom Radio, Garmin Transponders, a mix of
Electronic and =0ASteam gauges in the panels. Can we get several builders w
ith the near same set =0Aup to post their weights?? Can anyone tell why the
difference??=0AWith 2 people on board I can fly to min. fuel without going
aft the CG limit. =0ATom has to land with 10 - 11 gal. of fuel on board to
stay in the published =0Alimits. =0A=0ABoth of us have checked the weights
several times with different scales.=0A=0ABobby=0AN131BP =0A134 hrs=0AJab.
-========================
================== =0A
Message 5
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| Subject: | Re: Weight & Balance |
Bobby,
The numbers I got are:
Right: 323lb 631 mm
left: 341lb 631 mm
nose: 277lb -510mm
Of note is that this can still generate an aft CG under some reasonable
sounding conditions. I am working on that. A significant item is that
the datum distances were a bit different from some other Zenith numbers
I had seen. These are measured numbers. One should check that both
planes really have exactly the same measurements. These measurements are
to the center of the axles.
Mark Hubelbank
Ch601XL-B
Jabiru 3300
Sensenich adj prop
Rotec TBI-40-3
175 Hours airframe
On 12/14/2011 4:07 PM, BobbyPaulk@comcast.net wrote:
> List,
> My friend Tom has a 601 XL "B" similar to mine.
> Both have Jab.3300 engines and similar instrument panels. The question
> is why the difference in nose wheel weights.
> His wheel weights are RW 290.2 LW 306.6 and 200.2 on the nose. Total
> Weight 797#. My weights are RW 272 LW 290 and 241 on the nose. Total
> weight is 803. With only 6 pounds difference in total weight there is
> 41 pounds more on my nose wheel than his. He also has a larger battery
> on the firewall where mine is also located. We both have Icom Radio,
> Garmin Transponders, a mix of Electronic and Steam gauges in the
> panels. Can we get several builders with the near same set up to post
> their weights?? Can anyone tell why the difference??
> With 2 people on board I can fly to min. fuel without going aft the CG
> limit. Tom has to land with 10 - 11 gal. of fuel on board to stay in
> the published limits.
> Both of us have checked the weights several times with different scales.
>
> Bobby
> N131BP
> 134 hrs
> Jab. 3300
> *
>
>
> *
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