Re: ETOPS Question

Date:         22 Nov 97 20:41:26 
From:         wb8foz@netcom.com (David Lesher)
Organization: NRK Clinic for habitual NetNews Abusers - Beltway Annex
References:   1 2 3 4 5 6 7 8 9 10 11 12 13 14
Followups:    1
Next article
View raw article
  or MIME structure

faurecm@halcyon.com (C. Marin Faure) writes:

>All ETOPS twins must be able to immediately start their APUs at cruising
>altitude even after hours of cold-soaking.

Could you not just heat the APU's normally, given you will be
starting it ASAP if you lose an engine anyhow? ISTM you're not
short of waste heat in-flight but maybe I'm wrong.

On the ground, standby power Diesels have their water-jackets kept
warm to ensure they will start quickly and easily.

And how are ETOPS APU's started; is bleed air an option, or just
electricity? Does the APU have any separate fuel tankage from
the engines?

--
A host is a host from coast to coast.................wb8foz@nrk.com
& no one will talk to a host that's close........[v].(301) 56-LINUX
Unless the host (that isn't close).........................pob 1433
is busy, hung or dead....................................20915-1433