 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
richard.goode(at)russiana
Guest
|
 Posted: Tue Nov 18, 2008 6:34 am Post subject: Yak-18T Longrange tanks |
 |
|
We have been involved in the design of 18T long-range tanks, working with Yakovlev in Moscow.
I am concerned that it might be seen as an easy conversion to install the tanks. I say this not in any kind of commercially protective fashion, but simply because it is a very significant modification, involving the removal of much of the wing's strength, and then replacing it, and, unless it is done absolutely correctly, the wings strength will be seriously compromised.
It is not like adding a "wet-wing" to a 52, where the fundamental structure is unchanged, but the tank replaces a number of ribs and stringers.
In addition, once the wing is disassembled, they inevitably warp, and so installation of the tanks must be done inside a wing jig, which holds the entire structure in place, while the wing is being re-made.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340 120
Fax: +44 (0) 1544 340 129
www.russianaeros.com
[quote][b]
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
 |
Gpw678(at)aol.com
Guest
|
| Posted: Tue Nov 18, 2008 6:39 am Post subject: Yak-18T Longrange tanks |
|
|
We had one in South Africa using a tank in the luggage compartment
Didn't work to well until a pump was fitted
[quote][b]
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
buddairbum(at)cox.net
Guest
|
| Posted: Tue Nov 18, 2008 6:55 am Post subject: Yak-18T Longrange tanks |
|
|
Speaking as a structural engineer (ASE), I was concerned when I saw his original post and I’m glad to see you post this. I can verify that what Richard is saying is true. Taking major structure (ribs, stringers, etc) out of a monocoque structure like a wing isn’t to be taken lightly.
bd
On 11/18/08 7:31 AM, "Richard Goode" <[url=richard.goode(at)russianaeros.com]richard.goode(at)russianaeros.com[/url]> wrote:
[quote]We have been involved in the design of 18T long-range tanks, working with Yakovlev in Moscow.
I am concerned that it might be seen as an easy conversion to install the tanks. I say this not in any kind of commercially protective fashion, but simply because it is a very significant modification, involving the removal of much of the wing's strength, and then replacing it, and, unless it is done absolutely correctly, the wings strength will be seriously compromised.
It is not like adding a "wet-wing" to a 52, where the fundamental structure is unchanged, but the tank replaces a number of ribs and stringers.
In addition, once the wing is disassembled, they inevitably warp, and so installation of the tanks must be done inside a wing jig, which holds the entire structure in place, while the wing is being re-made.
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Herefordshire
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340 120
Fax: +44 (0) 1544 340 129
www.russianaeros.com <http://www.russianaeros.com>
onth --
me AWESOME FREE Gifts!)
://www.matronics.com/contribution
; -Matt Dralle, List Admin.
ail Forum -
">http://www.matronics.com/Navigator?Yak-List
; - MATRONICS WEB FORUMS -
matronics.com
[b]
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
richard.goode(at)russiana
Guest
|
| Posted: Tue Nov 18, 2008 7:05 am Post subject: Yak-18T Longrange tanks |
|
|
The baggage bay tanks are a simple and good mod.and should not need a pump since the tank is a lot higher than the wing tanks,so I would suspect another problem such as venting.
HOWEVER,having 90/130 litres of 100LL behind you in the fueselage is not the best idea IF you have an accident.
ALSO,with heavy guys in the rear seat and a full baggage tank,you can get well outside the rear CofG limit!!
Richard
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
[quote] ---
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
Gpw678(at)aol.com
Guest
|
| Posted: Tue Nov 18, 2008 7:31 am Post subject: Yak-18T Longrange tanks |
|
|
Richard as usual, you are correct, when full fuel of approx. 110 litres the C of G was well back and trim was almost full forward for level flight.
The cash issue was always there with so much fuel on board.
Not crashing was by far the best solution we could come up with.
Indeed the only reason we installed it was the vast distances sometimes involved in X country flights in South Africa.
In Europe, I don't think I would bother
Cheers
Gerald
[quote][b]
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
richard.goode(at)russiana
Guest
|
| Posted: Tue Nov 18, 2008 7:46 am Post subject: Yak-18T Longrange tanks |
|
|
We have made several 18Ts with 360 litre wing-tanks and 130 litre baggage tanks[which can be removed in about 30 minutes]-so 490 litres [130 US gallons],almost 10 hours at economical cruise!
Richard
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
[quote] ---
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
gill.g(at)gpimail.com
Guest
|
| Posted: Tue Nov 18, 2008 8:36 am Post subject: Yak-18T Longrange tanks |
|
|
Richard,
I hope you added oil capacity and softer seats too.
Gill
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Richard Goode
Sent: Tuesday, November 18, 2008 8:45 AM
To: yak-list(at)matronics.com
Subject: Re: Yak-18T Longrange tanks
We have made several 18Ts with 360 litre wing-tanks and 130 litre baggage tanks[which can be removed in about 30 minutes]-so 490 litres [130 US gallons],almost 10 hours at economical cruise!
Richard
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
[quote]
---
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
viperdoc(at)mindspring.co
Guest
|
| Posted: Tue Nov 18, 2008 1:03 pm Post subject: Yak-18T Longrange tanks |
|
|
Along with relief tubes too!
Doc
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Gill Gutierrez
Sent: Tuesday, November 18, 2008 10:36 AM
To: yak-list(at)matronics.com
Subject: RE: Yak-18T Longrange tanks
Richard,
I hope you added oil capacity and softer seats too.
Gill
From: owner-yak-list-server(at)matronics.com [mailto:owner-yak-list-server(at)matronics.com] On Behalf Of Richard Goode
Sent: Tuesday, November 18, 2008 8:45 AM
To: yak-list(at)matronics.com
Subject: Re: Yak-18T Longrange tanks
We have made several 18Ts with 360 litre wing-tanks and 130 litre baggage tanks[which can be removed in about 30 minutes]-so 490 litres [130 US gallons],almost 10 hours at economical cruise!
Richard
Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW
United Kingdom
Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com
[quote]
---
| | - The Matronics Yak-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?Yak-List |
|
|
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
