PPRuNe Forums - View Single Post - Hawker Siddeley Trident 3B and its fourth "booster" engine
Old 22nd Apr 2023, 13:34
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condor17
 
Join Date: Aug 2012
Location: N . Daarset
Age: 71
Posts: 314
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Like Discorde , I went ''Tridexterous'' [ All 3 varieties of T-bird ] for the last 3 of my 12 Trid yrs . By then we were taught about the WAT limit for Hot and High airfields .
GVA ... embarrassing ? Surely not with the best lunch allowance in the network .
Memory is not as good as his , regarding operation , but sounds about right .
Winter ops out of GLA , snow , fog 'darn 'Sarf , so Prestwick div. + 1 hrs holding fuel thought wise ..
Holding point 05 , boost fails to go ! ,,,,, Next 1 hr+ sat there 11000+ HP RPM , burning off excess fuel down to Boostless TO wt. Sorry Paisley for the noise .
Because of the boost position , rudder ht is reduced . Thus does memory say X-wind limit reduced ? Or even less allowed from one side than the other ? [ or was that ATP ?]
CS , sorry original ground school on Trids. was in 1973 , so no KNs . .
Seem to remember ,
T1Cs Spey 511s 11000lb thrust
T2Es and T3Bs Spey 512s [W?] 12000lb thrust . Was [W] water/meth inj.?
Rb162 boost engine , 5000lbs thrust , with plastic fan blades .
Helped deliver T3 G-AWZZ on her final flt to BHX for the fire dept to practice on . Min fuel , full chat And the boost , gave us a sprightly t/o !

PB , all civil transport a/c have to be able to lose one engine on t/o , and make 30' ht.[ 15' on wet rwy ] by the end of the rwy .
DR , memory gone but is a B744 equipped with a PWC double PT-6 APU ? Making her a 6 holer .
Thus T3s were 5 holers !

rgds condor




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