Qf B707 Vh-xba (vh-eba) (Monster Merge!)
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Updates are available at
http://www.adastron.com/707/qfm/707-news.htm
http://www.adastron.com/707/qfm/707-news.htm
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Sharp old lady.
I passed through Southend this morning at stupid o'clock and had enough time to have a really good sticky. I can say that the people who have returned this old girl to her former beauty have done a fan-friggen-tastic job.
The light was not good enough for a pic and being between some ashtray and agean 737's did not help.
If you get the chance to have a squizz before she goes to Longreach do so....
My only question is, when she was given the VIP fit and had most of the rear left windows blanked out......Whats there now?
The light was not good enough for a pic and being between some ashtray and agean 737's did not help.
If you get the chance to have a squizz before she goes to Longreach do so....
My only question is, when she was given the VIP fit and had most of the rear left windows blanked out......Whats there now?
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Is it true that the left hand seat has a GPS system so that the seat always points towards Mecca?
Trying to be serious for once ,it will be great to see her back in Oz. I understand that the insurance and other legalities would probably be prohibitive but wouldn't it be great to be able to pay for a flight in it.The money could go to charity or the museum at Longreach but I think they would be swamped with calls if it eventuated.
Trying to be serious for once ,it will be great to see her back in Oz. I understand that the insurance and other legalities would probably be prohibitive but wouldn't it be great to be able to pay for a flight in it.The money could go to charity or the museum at Longreach but I think they would be swamped with calls if it eventuated.
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Airborne at about 1300 hours today returning some 2 hours later, completing the exercise with a couple of missed approaches. Many in SE England would like to know what day it is looking to depart for good, as I missed it today leaving SEN at 11;30 hours. What a bottomer.
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J430,
Unlike the big fans, the early engines don't really put out enough bleed air to pressurise the a/c [altho it's available from each engine.] Boeing came up with the installation of the turbo-compressor for the inboard engines to enhance the air for pressurisation. The B720 had 2 t/c's [as they're known], dunno about other B707-100's but QF had 3 and the -300 series all had 3. #1 engine missed out. Takeoff config is to run the t/c's on the inboards for takeoff to give symmetrical power settings [.02EPR reduction for T/c ON], then turn the 3rd ON after power reduction.
Hope that helps?
G'day
Unlike the big fans, the early engines don't really put out enough bleed air to pressurise the a/c [altho it's available from each engine.] Boeing came up with the installation of the turbo-compressor for the inboard engines to enhance the air for pressurisation. The B720 had 2 t/c's [as they're known], dunno about other B707-100's but QF had 3 and the -300 series all had 3. #1 engine missed out. Takeoff config is to run the t/c's on the inboards for takeoff to give symmetrical power settings [.02EPR reduction for T/c ON], then turn the 3rd ON after power reduction.
Hope that helps?
G'day
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Feather #3,
Thanks for that. My first run on a 707 was in 1974 and I noticed that and have wondered about it ever since.
I have also wondered about the extra inlet doors around the front of JT3Ds; am I correct in recalling that early JT9Ds also had them (and also whatever turbojets are on B52s)?
She looks fantastic in those photos. Great work all round.
Thanks guys
Thanks for that. My first run on a 707 was in 1974 and I noticed that and have wondered about it ever since.
I have also wondered about the extra inlet doors around the front of JT3Ds; am I correct in recalling that early JT9Ds also had them (and also whatever turbojets are on B52s)?
She looks fantastic in those photos. Great work all round.
Thanks guys
As far as I remember, the T/Cs were fitted to the B707 fleet because those early turbojets were liable to have contaminated bleed air - oil sealing wasn't all that good then. The engines were more than capable of supplying adequate bleed air for pressurisation needs. Remember that the T/Cs extracted much more bleed energy to operate than an equivalent straight bleed flow.
Taily, the extra air doors around the nose cowl were, in fact, known in Boeing-speak as "secondary air inlet doors". Remember that the inlet should be sized for the cruise, so then it will be too small at low airspeeds and engine efficiency will improve with more air. The JT3D nose cowl doors were still a bit open till well up the climb. Again your memory serves you well - early JT9s had them and I personally loved the howl. Nose cowls were all sealed up to help keep the noise down and make us better neighbours, but the old JT9 nose cowls made it easy to set thrust for T/O.
Taily, the extra air doors around the nose cowl were, in fact, known in Boeing-speak as "secondary air inlet doors". Remember that the inlet should be sized for the cruise, so then it will be too small at low airspeeds and engine efficiency will improve with more air. The JT3D nose cowl doors were still a bit open till well up the climb. Again your memory serves you well - early JT9s had them and I personally loved the howl. Nose cowls were all sealed up to help keep the noise down and make us better neighbours, but the old JT9 nose cowls made it easy to set thrust for T/O.
Fris B.
Just wondering exactly how much Qantas put into her?
I bet QF will milk as much as they can out of the ol' girl but the cynic in me doubts a significant contribution on their part!
Just wondering exactly how much Qantas put into her?
I bet QF will milk as much as they can out of the ol' girl but the cynic in me doubts a significant contribution on their part!
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Pure speculation on my part, but maybe the Rat's contribution isn't necessarily monetary, but rather in providing crew, project & flight planning assistance, engineering advice and support, manuals, materiel, route clearance/diplomatic assistance, contacts at Shell & Boeing (recalling that Shell provided the special fuel for VH-OJA's then-record delivery flight in 1989), etc. - doubtless all of which will be costed to claim a tax discount but maybe the number of actual number of cheques written will be small. But vital support nonetheless which would've had to have been bought if it wasn't given. They could've told the project to take a running jump. But, as I say, pure spec by me.