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Hosepipe Assisted AN24 Startup?  
User currently offlineClydenairways From Ireland, joined Jan 2007, 1450 posts, RR: 0
Posted (5 years 10 months 3 weeks 1 day 13 hours ago) and read 3173 times:

Never saw anything like this before, the guy is pointing a hosepipe at the engine during startup.
Is this really for cooling during startup as the photo comment suggests?


5 replies: All unread, jump to last
User currently offlineWrenchBender From Canada, joined Feb 2004, 1779 posts, RR: 7
Reply 1, posted (5 years 10 months 3 weeks 5 hours ago) and read 2966 times:

Probably just doing a water wash on the engines. We were required to do a desalination rinse on our aircraft if operated within a certain distance and altitude of salt water at the end of every flying day.


Silly Pilot, Tricks are for kids.......
User currently offlineHAWK21M From India, joined Jan 2001, 31875 posts, RR: 54
Reply 2, posted (5 years 10 months 2 weeks 6 days 12 hours ago) and read 2813 times:

Waterwash in progress.The Water Aimed at the Engine Inlet & not the Propeller.

Think of the brighter side!
User currently offlinekanban From United States of America, joined Jan 2008, 4331 posts, RR: 30
Reply 3, posted (5 years 10 months 2 weeks 5 days 20 hours ago) and read 2684 times:
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I think the photographer's comments...Chita is not near a marine environment... it would appear the an AN-24 is difficult to start at 41C (106 F)... had a truck like that had to cool the starter on hot days

User currently offlinemusang From United Kingdom, joined Apr 2001, 920 posts, RR: 6
Reply 4, posted (5 years 10 months 2 weeks 1 day ago) and read 2304 times:

Assuming ITT (or TIT or whatever Antonovs use) is the limiting start parameter on a hot day, is it an attempt to get the water into the compressor and all the way down the gas path to keep the temp below limit?


User currently offlinedandaire From UK - Wales, joined Jul 2008, 65 posts, RR: 0
Reply 5, posted (5 years 10 months 1 week 10 hours ago) and read 2007 times:

It looks like an attempt to increase the mass flow of air into the engine by cooling the air with water, something like the water injection on the spey engines fitted to the BAC 1-11.

Old age and treachery will triumph over youth and skill.
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