Undercarriage rubbers

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Neil Spooner
Posts: 631
Location: Ardleigh, Colchester, Essex, UK
Contact:

Undercarriage rubbers

Postby Neil Spooner » Mon Mar 08, 2010 12:46 pm

Hi All,

I recently replaced my u/c rubbers during my Annual. I had an original "lever" type u/c tool which I used during the restoration. It worked ok but it was difficult hauling on the tool and getting the u/c bolts in. So, I have devised this tool that worked very well, with no heaving, sweating or poking holes in fabric when you slip pulling on the rubbers.
1-Suspend a/c from hangar roof or hoist by cross tube behind seat at outermost extremity. IMPORANT: the a/c will tip onto a wingtip when u/c is clear of the floor, make sure you put tressels under the wings with foam on to protect the wing.
2-Install tool and spread rubbers so there is no load on the u/c rubber A frame and remove fwd top bolt and bottom bolt on one side only.
3-Retract tool to remove load on rubbers so the old rubbers can be slipped off and new ones on.
4-Spread tool sufficiently to enable reinstallation of bolts.
5-Retract tool and remove from a/c.

Simple!

Herewith photos of the tooling and installation.[/attachment]
Undercarriage tool (1)1.jpg
Undercarriage tool (1)1.jpg (102.46 KiB) Viewed 10413 times
Attachments
Undercarriage tool (4)1.jpg
Undercarriage tool (4)1.jpg (129.19 KiB) Viewed 10405 times
Undercarriage tool (8)1.jpg
Undercarriage tool (8)1.jpg (62.55 KiB) Viewed 10393 times
Undercarriage tool (6)1.jpg
Undercarriage tool (6)1.jpg (56.47 KiB) Viewed 10401 times
Undercarriage tool (3)1.jpg
Undercarriage tool (3)1.jpg (125.36 KiB) Viewed 10398 times
A little help goes a long way.
Nipper G-BRPM and G-BALS
RV4 G-IKON

Pat Blenkinsopp
Posts: 124
Location: Salisbury

Re: Undercarriage rubbers

Postby Pat Blenkinsopp » Mon Mar 08, 2010 4:57 pm

You cleaver clogs! Shocked
Genius!! Very Happy
I WILL be copying this one.
Thanks for sharing this Neil.
Could you give me a bell on
01980 611530 , or
07969 531619....... Important breaking news.
Good for all of us in the comunity.
Had a good flight on Sat. Pushing the envelope little by little Very Happy
Kind regards Pat,
ASXI

JimCrawford
Posts: 149

Re: Undercarriage rubbers

Postby JimCrawford » Tue Mar 09, 2010 7:23 pm

Where can I purchase a set of undercarriage rubbers? I'd like to get a set in stock, and I'll certainly copy the fitting technique!

Jim

GAVTC

Neil Spooner
Posts: 631
Location: Ardleigh, Colchester, Essex, UK
Contact:

Re: Undercarriage rubbers

Postby Neil Spooner » Wed Mar 10, 2010 8:33 am

Hi Jim,

Nk&C may still have some in stock, Alan did get a batch made some time ago......good luck.

One of the photos shows the old and new rubbers, you can see they are stretched in comparison to the new ones. The a/c sits higher now. But remember, always lift the tail if the a/c is going to sit for a while to take the load off of the u/c rubbers.

All the best,

Neil
A little help goes a long way.
Nipper G-BRPM and G-BALS
RV4 G-IKON

G-BLMW
Posts: 126
Location: Lincolnshire/Cambridgeshire border

Re: Undercarriage rubbers

Postby G-BLMW » Thu Mar 11, 2010 7:55 pm

Well done Neil, what a great idea Very Happy I will also be manufacturing one of those.

Cheers

Stuart

Neil Spooner
Posts: 631
Location: Ardleigh, Colchester, Essex, UK
Contact:

Re: Undercarriage rubbers

Postby Neil Spooner » Fri Mar 12, 2010 8:18 am

I was sent an email which may be of interest to us all which I am posting with his permission:

Neil

I've attached some photos of a more practical solution. Sourced from LAS they are 2 x 1080HD bungee rings fitted in a figure of eight. No modifications required to fit them and they have stood up well for the last 2 years. I never bother lifting the tail and the bungees show no sign of wear. The only thing extra I fitted was a length of screwed rod with 2 large washers at each end inserted through the small tube that runs fore-and-aft that the rubbers rest against. This was only done to stop the bungees slipping over the end of the tube ( a pretty unlikely event unless they were really stretched ).
Hope this is of interest.


The additional bolts were fitted after this photo was taken.

All the best,
Neil
Attachments
041.jpg
041.jpg (62.48 KiB) Viewed 10286 times
A little help goes a long way.
Nipper G-BRPM and G-BALS
RV4 G-IKON

OO-WBR
Posts: 59

Re: Undercarriage rubbers

Postby OO-WBR » Sun Mar 21, 2010 3:42 pm

On which aircraft are these fitted? (an English permit one or another?)

Willem

Neil Spooner
Posts: 631
Location: Ardleigh, Colchester, Essex, UK
Contact:

Re: Undercarriage rubbers

Postby Neil Spooner » Sun Mar 21, 2010 7:54 pm

Hi Willem,

I don't know the Reg', sorry.

Neil
A little help goes a long way.
Nipper G-BRPM and G-BALS
RV4 G-IKON


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