PPRuNe Forums - Super Puma tyre pressures?

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heli1

29th Dec 2018 23:03

Super Puma tyre pressures?

Hi...Is there someone out there who can confirm the correct tyre pressures in psi for the Bristow Tiger variant of the AS332L ? Asking for a friend ( museum actually).

industry insider

30th Dec 2018 03:24

The "Tiger" variant was really just a 332L so the tyre pressures shouldn't be any different from a normal 332L (95psi nose wheel and 120psi main wheel from my old books.

Fareastdriver

30th Dec 2018 10:02

The mainwheel tyres don't 'alf make a bang if the rim fractures.

jimjim1

30th Dec 2018 11:04

Quote:

Originally Posted by Fareastdriver (Post 10347191)

The mainwheel tyres don't 'alf make a bang if the rim fractures.

Hmmm. Good point.

Inflated tyres are extremely dangerous in the event of a sudden decompression.

All of the energy that went into inflating them - say a compressor running for several minutes - is released instantly.

If it was my museum I would not be inflating them to anywhere near the operational pressure unless the wheels and tyres were subject to flying status maintenance procedures.

This is the kind of thing that should perhaps be considered.

https://cimg4.ibsrv.net/gimg/pprune....9b7215851a.png

Good luck.

heli1

30th Dec 2018 15:17

Thanks muchly....Your advice being taken ,but just needed to know normal pressure. Usually the museum keeps its aircraft on blocks with the wheels off the ground and minimal tyre pressure but this one has to be frequently moved so need to put more air in to look good but still less than full pressure.

ec155

31st Dec 2018 07:20

If my memory serves me correctly;

Main nose wheel should be 7 bar or 101.5 psi

Port / Starboard wheels should be 7.2 bar each or 104.4 psi

Best wishes for 2019 to everyone.

212man

31st Dec 2018 08:17

Quote:

Originally Posted by ec155 (Post 10347833)

If my memory serves me correctly;

Main nose wheel should be 7 bar or 101.5 psi

Port / Starboard wheels should be 7.2 bar each or 104.4 psi

Best wishes for 2019 to everyone.

they’re exactly the same numbers I’ve had stuck in my head for the last 28 years too! Along with 1 degree 6” pitch on the TR when the cable snaps, 34,900 rpm for 20” OEI transient etc etc.....

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