Can you guess why I want these ?

[CompoSimmonite]

I'm buying a pair of these -

Can you guess why
A clue is they are needed (to stay within the law) for my modifications to ease access.

Paul H

[cameronfurnival]

Re: Can you guess why I want these ?

I know what it is

[ruby131]

Re: Can you guess why I want these ?

Not ejector seats surely!

[CompoSimmonite]

Re: Can you guess why I want these ?

Not ejector seats surely!

Think exactly the opposite

Paul H

[austinm]

Re: Can you guess why I want these ?

i guess there meant to keep you in.
Or you are starting a taxi business.

Austin

[CompoSimmonite]

Re: Can you guess why I want these ?

i guess there meant to keep you in.
Or you are starting a taxi business.

Austin

Getting there (not about a taxi business)
Another clue - they are for the door. But do you know why I need them for my modification to the Marlin to remain legal ?

Paul H

[b_caswell]

Re: Can you guess why I want these ?

Suicide doors?

[CompoSimmonite]

Re: Can you guess why I want these ?

Suicide doors?

Bingo
As long as they have a detent system to stop them coming open when the vehicle is in motion then suicide doors are 100% legal. Most people use a manual sliding bolt but seeing Black Cabs have had a system in place for their rear doors since 1960's then makes sense to use their components. Simple speed sensor on prop shaft together with the taxi control unit (also cheap / reliable) activates the locks at 2-5 mph upwards.

Paul H