Today's Message Index:
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1. 04:05 AM - Re: Re: Re - Question about fuel flow from only one tank? (Roy Szarafinski)
2. 04:55 AM - Re: CH801 Seats/ Rudder Pedals (dj45)
3. 11:34 AM - Stratus EA-81 - Going Going Gone... (Don Honabach)
4. 06:08 PM - Re: Shoulder Harness attachment (cal.riggs)
5. 06:50 PM - Why not just build the fuel system as per the plan (Brett Hanley)
6. 06:53 PM - Re: 801 seat belts (Jim Frisby)
7. 07:34 PM - Re: Re: 801 seat belts (Graeme)
8. 08:51 PM - Re: Re: 801 seat belts (Gary Gower)
9. 09:08 PM - Re: Re: 801 seat belts (Joemotis@aol.com)
10. 09:21 PM - Re: Re: 801 seat belts (Joemotis@aol.com)
Message 1
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| Subject: | Re: Re - Question about fuel flow from only one |
tank?
I am glad to know that Gary, I did the same but without prior firsthand knowledge
of the effectiveness. My tank has a submersible high pressure pump and fuel
cell foam in it and will be hard to retrofit a level sender. Perhaps I will investigate
oil level senders used on lawn mowers or cars. Thanks for the info.
Cheers
Roy Szarafinski
701 plans, corvair
roysgarage.com
----- Original Message ----
From: Gary Gower <ggower_99@yahoo.com>
Sent: Tuesday, September 16, 2008 2:11:16 AM
Subject: Re: Zenith701801-List: Re: Re - Question about fuel flow from only one
tank?
Hello friends,
The Kitfox rear header tank (about a galon capacity) is also a good idea, is attached
to the back side of the seats. this tank conects both wing tanks in one
over the gascolator. comes with a float switch that will light a bulb in the
instrument panel in case of the fuel is low in this header tank. At least will
give the pilot a few minutes to aproach a landing place before the engine
stops...
Someone knows if Kitfox sells them, or where can be bought? at least the float
switch, I can make my own tank with alum or vinilester resin...
Saludos
Gary Gower.
--
Message 2
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| Subject: | Re: CH801 Seats/ Rudder Pedals |
Jeff,
I installed our seats per the planes and I haven't noticed any problem withe the
rudder pedals being offset a bit. Have 100 hrs. on the plane.
I did put slides on the seat so I can adjust it in flight. Didn't like the rod
system.
--------
Do not archive
Dan Stanton
N9801S
99.9% Done and Flying
N9701S-40% done
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 4538#204538
Message 3
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| Subject: | Stratus EA-81 - Going Going Gone... |
Hey Everyone,
The EA-81 Subaru is on its last day at eBay. If anything one is
interested the EA-81 and FWF Kit are currently going to sell for just a
bit over $2,000 as of right now.
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=150291956
8
59
Don Honabach
Tempe, AZ
601HDS - N601DX
Building for 10 years and going :)!
Do Not Archive
Message 4
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| Subject: | Re: Shoulder Harness attachment |
Jeff,
I figured you were... an engineer. What branch? AE?
I thought that showing the photo of the deformation of the fuselage at the shoulder
harness attachment would show that maybe a calculation of shear force on
an anchored piece of aluminum may not be an accurate representation of the complete
picture. Being that I'm not a structural engineer (or even a mechanical
engineer), I got the impression that your calculation only included the aluminum
attachment piece, the bolt, and 200 lbs at 10Gs shear. If you, in fact, included
force absorption due to the deformation of the fuselage structure, then
I'd say we may have to consider replacing our stock seat belt tabs. However, I
can't seem to get past the evidence that in an actual crash, the tab was stronger
than the fuselage. At what point, with the inclusion of structural deformation,
does the scenario of tab, bolt, 200lbs body take over?
Regards,
Cal
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p 4690#204690
Message 5
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| Subject: | Why not just build the fuel system as per the plan |
I have not heard of any problem building the fuel system as per the plan.
- What are we hoping to gain by changes? Speed? Simplicity? Save money? G
ain weight? I just do not see the need for modifications.-
-
Brett Hanley
N858BH
701/ Subaru EA81
40 hours
Hilltown PA
Message 6
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| Subject: | RE: 801 seat belts |
Jeff=2C
I had replaced the outboard seatbelt anchors too=2C the ones on the seat ba
ck were in the way and just didn't seem adequate. I added anchors along th
e inside of the cabin wall behind the door and tied them in to the gear/str
ut fitment with a 4130 strap. These showed no sign of failure in the crash
=2C but as Bill said=2C the center anchor peeled completely off the center
console. Somehow=2C the last rivet must have failed just as my body stoppe
d pulling on it=2C because I did not impact anything. The plane came to re
st nearly inverted=2C which may have contributed to the "peeling" force on
the center anchor=2C however I can tell you that crashing inverted is a cle
ar possibility. I have photos of the failed anchor. I did send these to Z
AC but I don't think they ever did anything about it.
Jim Frisby> Date: Fri=2C 12 Sep 2008 07:48:42 -0800> From: keystone@gci.net
> Subject: 801 seat belts> To: zenith701801-list@matronics.com> CC: n85ae@y
ahoo.com=3B n801za@hotmail.com> > Jeff> > Can I get pics of how you beefed
up your seat belt attach points? > > When Jim F wrecked his 801 the rivets
pulled out from the center attach> point. He was in the plane by himself wh
en he crashed. I hate to think> what would have happened if there had been
2 people in the front seat. > > I suspect ZAC assumed the rivets would be i
n shear but they failed in> tension. > > I installed another AL plate under
the tunnel top and used A-6 rivets on my> center attach point after what h
appened to Jim. > > > Bill Wilcox> N801BW> Valdez=2C AK> 15 hrs on Full Lot
us floats> > > > Time: 12:54:34 PM PST US> Subject: Zenith701801-List: Re:
Shoulder Harness attachment> From: "n85ae" <n85ae@yahoo.com>> > > Something
to think about=2C because Zenith sure did not do their engineering> calcul
ation with regard to the seatbelts.> > I calculated the stock 801 seat belt
tabs at 200lb.s at 10G's in shear=2C if> indeed the rivets don't pull out
before that. So I replaced them with 4130> steel the same thickness which I
bolted with AN3's to the fueslage> longerons. I> also added structure to t
he center console.> > Crash impacts can go up to 40/50G's and be survivable
=2C so I'm not sure> what they were thinking when the designed the stock on
es. But they were> not designed to handle more than the bare minimum. > > I
suppose if I crash that hard I might not survive anyway=2C but I sure don'
t> want to leave on account the seat belt tabs sheared.> > Jeff> > >
_________________________________________________________________
See how Windows Mobile brings your life together=97at home=2C work=2C or on
the go.
Message 7
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| Subject: | Re: RE: 801 seat belts |
there is a lot of talk of surviving 40/50g crashes
These aircraft are made to fly not crash.
In a reasonable nasty crash (aircraft still flying) I would expect to
survive in a CH701
If I dont Fly into any thing solid at High angles of attack.
I have had a crash landing into a cane padock and I and my passenger
were unscathed.
The aircraft would be classed af written off.
The seat belt points held.
If you increase the channel attach point what stops the whole channel
from pullin out in you 40/50g crash.
What angle of attack and speed do you need to be doing to get a 40/50g
crash loading in a CH701.
Graemecns
Message 8
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| Subject: | Re: RE: 801 seat belts |
The important thing to survive any crash are not only the seats belts, or t
he structure of the airplane in distress, is the ability of the pilot to ke
ep control of the airplane (keep it flying, as much as he is human posible)
- before touching ground (or what ever material more solid than air gets
in the way).--
An airplane out of control will increase dramaticaly the speed in only seco
nds and the force of impact (G's)- will go up in--doubles- way,-
-(I know there is a name for this in english,- I am an Engineer, but st
udied and practice in Mexico (in Spanish is exponencial).
In the same way the survival of the humans (pilot and passengers) decreases
the same way.-
Forget the structure,- train and practice emergencies to fly the airplane
always.- Eveything else is second in importance, once we survive, we can
do anything about it.-
Surviving-starts with a red face in a ground loop. or when bouncing the l
anding (with front training wheel)--- :-) :-)--;-)-
-
Saludos
Gary- Gower
Do not archive
--- On Tue, 9/16/08, Graeme <graeme@coletoolcentre.com.au> wrote:
From: Graeme <graeme@coletoolcentre.com.au>
Subject: Re: Zenith701801-List: RE: 801 seat belts
#yiv1960866632 .hmmessage P {
PADDING-RIGHT:0px;PADDING-LEFT:0px;PADDING-BOTTOM:0px;MARGIN:0px;PADDING-TO
P:0px;}
#yiv1960866632 {
FONT-SIZE:10pt;FONT-FAMILY:Tahoma;}
there is a lot of talk of surviving 40/50g crashes
These aircraft are made to fly not crash.
In a reasonable nasty crash (aircraft still flying) I would expect to survi
ve in a CH701
-If I dont Fly into any thing solid at High angles of attack.
I have had a crash landing into a cane padock and I and my passenger were u
nscathed.
The aircraft would be classed af written off.
The seat belt points held.
If you increase the channel attach point what stops the whole channel from
pullin out in you 40/50g crash.
What angle of attack and speed do you need to be doing to get a 40/50g cras
h loading in a CH701.
-
Graemecns
-
=0A=0A=0A
Message 9
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| Subject: | Re: RE: 801 seat belts |
In a message dated 9/16/2008 8:51:48 P.M. Pacific Daylight Time,
ggower_99@yahoo.com writes:
(in Spanish is exponencial).
In English is exponential.
If you want to make the bracket Bigger, thicker, longer and stronger and to
clarify I am NOT an Engineer, what's the worst possible harm?
Joe Motis
No Archivos, Eh
**************Psssst...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
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Message 10
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| Subject: | Re: RE: 801 seat belts |
Besides the weight penalty.
Joe Motis
Do not archive
Domo
**************Psssst...Have you heard the news? There's a new fashion blog,
plus the latest fall trends and hair styles at StyleList.com.
(http://www.stylelist.com/trends?ncid=aolsty00050000000014)
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