Today's Message Index:
----------------------
1. 07:54 AM - Aeroquip hoses (Keith.Miller@esa.int)
2. 11:26 AM - Re: Aeroquip hoses (Scott)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Any one had an experience of these Aeroquip f hoses ( fuel and Oil type
303, , 601 and Stratoflex hose) deteriorating over time ?
Some of mine must be best part of 18 years old now- 13 years flying. They
all look good from the outside. or can some one point me to a specification
which defines the life of them in service .
Thanks
Keith
From: Scott <sstearns2@yahoo.com>
To: "kis-list@matronics.com" <kis-list@matronics.com>,
Date: 03/24/2015 11:44 PM
Subject: Re: KIS-List: Re: NEOPRENE HOSE
Sent by: owner-kis-list-server@matronics.com
Fuel system problems are about 25% of the mechanical failures leading to
accidents in homebuilts. I would switch to real aircraft hoses (like
aeroquip 303) and hardware for any aircraft system. It is not hard to make
up the hoses yourself if you get the mandrel tool.
Scott
Sent from my iPad
On Mar 24, 2015, at 3:24 PM, Galin Hernandez <galinhdz@gmail.com> wrote:
My TR-4 has the neoprene hose from the wing to the fuselage as per the
plans. One of them started leaking (old age cracking) after 9 years of
use. The hose is very inexpensive so I now have it in my "scheduled
maintenance" to replace the hose very 5years.
On Mon, Mar 23, 2015 at 9:13 AM, mark_trickel <marktrickel@gmail.com>
wrote:
>
The 3/8 I.D. Neoprene hose included in KIS kits was intended for the
fuel line connection between the fuel tanks, and the fuselage. The
manual is a little vague, but there is a drawing of a typical
aircraft fuel system included in the TR-1 Builders Manual (Airframe
Assembly section page 8 ). I did not check, but I am sure the same
drawing is in the TR-4 Builders Manual. The drawing comes from our
faster, sleeker, and much more difficult to build cousin, the Lancair
235/320.
The black rubber hose is a very important piece to the KIS aircraft.
I can think of 2 real important reasons for this hose. First it makes
hooking up the fuel tanks simple. It would be a lot harder to
install a metal piece of tubing in this tight spot. Second when a
wing panel breaks off in a crash, the neoprene fuel line would
separate very easily - you wont have to worry about the fuel line
whiplashing about the cockpit (hopefully you all have plenty of Adell
clamps or the like securing the fuel line inside the cockpit).
Vinyl tubing was also included in KIS kits for use in the pitot
static system. Some items included in the kits in fact have a shelf
life, and that includes the neoprene, and vinyl tubing (tires, unused
resin and adhesives). KIS kits are now reaching the 25 year old mark,
and owners that have KIS aircraft built with these original materials
need to seriously think about replacing or upgrading them if they
have not done so already. The vinyl tubing in my 23 year old is still
somewhat serviceable, but I am upgrading to Nyloseal tubing, and
fittings - those will last a few lifetimes.
Some builders did not follow the Builders Manual, its just the
nature of homebuilt airplanes. Some installed that black rubber hose
from the fuel tanks all the way through the cockpit to the firewall
(a very bad idea). My TR-1 had that black hose from the tanks through
the side of the fuselage, then slid onto the aluminum tubing (no
barb) held on by 2 hose clamps, running 45+ psi automotive fuel pumps
in each wing slosh tank. The return came from the firewall fitting
into vinyl tubing, to the fuel valve, back into vinyl tubing to the
tanks. That tubing is now petrified. Whats in your fuel system?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=439763#439763
==========
List" target="_blank">http://www.matronics.com/Navigator?KIS-List
==========
FORUMS -
_blank">http://forums.matronics.com
==========
b Site -
-Matt Dralle, List Admin.
target="_blank">http://www.matronics.com/contribution
==========
D============================================
ist"">http://www.matronics.com/Navigator?KIS-List
D============================================
//forums.matronics.com
D============================================
ot;">http://www.matronics.com/contribution
D============================================
This message and any attachments are intended for the use of the addressee or addressees
only.
The unauthorised disclosure, use, dissemination or copying (either in whole or
in part) of its
content is not permitted.
If you received this message in error, please notify the sender and delete it from
your system.
Emails can be altered and their integrity cannot be guaranteed by the sender.
Please consider the environment before printing this email.
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Aeroquip hoses |
According to the Q/A section on the ACS page 303 hoses should be replaced every
5 years. Seems pretty conservative. I have read other places 10 years.
They have a lot of distributors that should be able to make a new set of hoses
based on the old ones. The end fittings are probably still good. They are not
too hard to do yourself if you get the mandrel tool from ACS.
http://www.eaton.com/Eaton/ProductsServices/Hydraulics/HowtoBuy/AeroquipExpress/index.htm
Scott
Sent from my iPad
> On Mar 25, 2015, at 7:53 AM, Keith.Miller@esa.int wrote:
>
>
> Any one had an experience of these Aeroquip f hoses ( fuel and Oil type
> 303, , 601 and Stratoflex hose) deteriorating over time ?
>
> Some of mine must be best part of 18 years old now- 13 years flying. They
> all look good from the outside. or can some one point me to a specification
> which defines the life of them in service .
>
> Thanks
>
> Keith
>
>
>
> From: Scott <sstearns2@yahoo.com>
> To: "kis-list@matronics.com" <kis-list@matronics.com>,
> Date: 03/24/2015 11:44 PM
> Subject: Re: KIS-List: Re: NEOPRENE HOSE
> Sent by: owner-kis-list-server@matronics.com
>
>
>
> Fuel system problems are about 25% of the mechanical failures leading to
> accidents in homebuilts. I would switch to real aircraft hoses (like
> aeroquip 303) and hardware for any aircraft system. It is not hard to make
> up the hoses yourself if you get the mandrel tool.
>
> Scott
>
> Sent from my iPad
>
> On Mar 24, 2015, at 3:24 PM, Galin Hernandez <galinhdz@gmail.com> wrote:
>
> My TR-4 has the neoprene hose from the wing to the fuselage as per the
> plans. One of them started leaking (old age cracking) after 9 years of
> use. The hose is very inexpensive so I now have it in my "scheduled
> maintenance" to replace the hose very 5years.
>
> On Mon, Mar 23, 2015 at 9:13 AM, mark_trickel <marktrickel@gmail.com>
> wrote:
>
> The 3/8 I.D. Neoprene hose included in KIS kits was intended for the
> fuel line connection between the fuel tanks, and the fuselage. The
> manual is a little vague, but there is a drawing of a typical
> aircraft fuel system included in the TR-1 Builders Manual (Airframe
> Assembly section page 8 ). I did not check, but I am sure the same
> drawing is in the TR-4 Builders Manual. The drawing comes from our
> faster, sleeker, and much more difficult to build cousin, the Lancair
> 235/320.
>
> The black rubber hose is a very important piece to the KIS aircraft.
> I can think of 2 real important reasons for this hose. First it makes
> hooking up the fuel tanks simple. It would be a lot harder to
> install a metal piece of tubing in this tight spot. Second when a
> wing panel breaks off in a crash, the neoprene fuel line would
> separate very easily - you wont have to worry about the fuel line
> whiplashing about the cockpit (hopefully you all have plenty of Adell
> clamps or the like securing the fuel line inside the cockpit).
>
> Vinyl tubing was also included in KIS kits for use in the pitot
> static system. Some items included in the kits in fact have a shelf
> life, and that includes the neoprene, and vinyl tubing (tires, unused
> resin and adhesives). KIS kits are now reaching the 25 year old mark,
> and owners that have KIS aircraft built with these original materials
> need to seriously think about replacing or upgrading them if they
> have not done so already. The vinyl tubing in my 23 year old is still
> somewhat serviceable, but I am upgrading to Nyloseal tubing, and
> fittings - those will last a few lifetimes.
>
> Some builders did not follow the Builders Manual, its just the
> nature of homebuilt airplanes. Some installed that black rubber hose
> from the fuel tanks all the way through the cockpit to the firewall
> (a very bad idea). My TR-1 had that black hose from the tanks through
> the side of the fuselage, then slid onto the aluminum tubing (no
> barb) held on by 2 hose clamps, running 45+ psi automotive fuel pumps
> in each wing slosh tank. The return came from the firewall fitting
> into vinyl tubing, to the fuel valve, back into vinyl tubing to the
> tanks. That tubing is now petrified. Whats in your fuel system?
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=439763#439763
>
>
>
>
>
>
>
> ==========
> List" target="_blank">http://www.matronics.com/Navigator?KIS-List
> ==========
> FORUMS -
> _blank">http://forums.matronics.com
> ==========
> b Site -
> -Matt Dralle, List Admin.
> target="_blank">http://www.matronics.com/contribution
> ==========
>
>
>
>
>
>
> D============================================
>
> ist"">http://www.matronics.com/Navigator?KIS-List
> D============================================
>
> //forums.matronics.com
> D============================================
>
> ot;">http://www.matronics.com/contribution
> D============================================
>
>
>
>
>
>
>
> This message and any attachments are intended for the use of the addressee or
addressees only.
> The unauthorised disclosure, use, dissemination or copying (either in whole or
in part) of its
> content is not permitted.
> If you received this message in error, please notify the sender and delete it
from your system.
> Emails can be altered and their integrity cannot be guaranteed by the sender.
>
> Please consider the environment before printing this email.
>
>
>
>
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|