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Post by vgp on Apr 18, 2008 11:28:42 GMT 12
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Post by FlyNavy on Apr 18, 2008 12:23:52 GMT 12
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Post by skyhawkdon on Apr 18, 2008 15:37:00 GMT 12
That's me working in the cockpit at Richmond in 1991! I was replacing the ADI by the looks of it (the removed ADI is sitting on the ladder). The guy on the ladder was an interested RAN maintainer from memory.
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Post by FlyNavy on Apr 18, 2008 17:25:10 GMT 12
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Post by FlyNavy on Apr 19, 2008 0:53:34 GMT 12
Don, In your lingo what does 'ADI' stand for please? Thanks.
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Post by vgp on Apr 19, 2008 8:57:15 GMT 12
Attitude director indicator or artificial Horizon: Ref. No. 967. SKYHAWK ADI. Indicator Altitude Director. Model 4060 BE. Spec: MIL-I-27619. Made by Lear Siegler Instrument Division, Grand Rapids, Michigan, USA. Measures 127 mm across by 133 mm high by 176 mm deep excluding knob. www.warbirdsite.com/museumskyhawk.html |
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Post by FlyNavy on Apr 19, 2008 10:00:46 GMT 12
Aaahhaaa - the ABBAJABBA! ;D AN/AJB-3A All-Attitude Indicator from NATOPS   |
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Post by sniff on Apr 19, 2008 10:17:38 GMT 12
How exactly did the ABBAJABBA work?
I have heard it said that pilots did loops on the ABBAJABBA at 30 degree increments all the way round the compass, and the 'ball' was seamless!
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Post by FlyNavy on Apr 19, 2008 10:23:09 GMT 12
Correct. It was seamless and unnerving when transitioning from Vampire era instruments. It seldom toppled under any circumstances unless U/S 'unserviceable'. IF it did topple then there was a warmup time when the red flags came out. I'll check NATOPS again. Under the canvas hood in the trainer we would take off down the runway completely on instruments with the safety pilot in front keeping an eye on lineup but usually never a problem either. Flying on it in the rear seat was like balancing on a slippery ball until one got used to it and relaxed. ;D  |
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Post by Barnsey on Apr 19, 2008 11:42:35 GMT 12
The ABBAJABBA was replaced with the Kahu upgrade to a "normal" ADI. There was a flight director bar for lateral steering commands which would give lateral guidance for navigation and attack steering. The attitude output of the ADI was used by the NAS (Nav Attack System) to validate the output of the Ring Laser Gyro, and if the roll or pitch varied by >10 degrees then ATTITUDE would be displayed in the HUD. If you ever saw this, it was always because the ADI couldn't keep up and the HUD attitude was correct. See pic here of "new" ADI at Philip Treweek's great photo site: www.kiwiaircraftimages.com/pages/01ohkc07.html |
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Post by Barnsey on Apr 19, 2008 11:43:23 GMT 12
Does beg the question about how the ABBAJABBA horizon ball was driven if was a seamless globe. Don???
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Post by FlyNavy on Apr 19, 2008 12:43:37 GMT 12
I gather if we refer to the 1988 TA4K photo at Richmond with Don that the KAHU upgrade was not made so the panel would look like those below: There is the ABBAJABBA and the Standby Attitude Indicator - which one is an ADI? ;D OR is an ADI something different again for the KAHU?   |
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Post by FlyNavy on Apr 19, 2008 12:58:10 GMT 12
Having found a KAHU front panel - NOW I GET IT! The ADI is a mini-ABBAJABBA. Cool. Miniaturisation eh.   |
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Post by vgp on Apr 19, 2008 13:07:29 GMT 12
The one located here: www.warbirdsite.com/museumskyhawk.html was only used as an example of an ADI as that is from a person or persons that is or has been trying to recreated a Kahu cockpit from spare parts. |
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Post by FlyNavy on Apr 19, 2008 13:14:37 GMT 12
Thanks. This KAHU stuff is opaque to me. Just curious...   |
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Post by FlyNavy on Apr 19, 2008 15:17:08 GMT 12
5.5Mb .AVI video clip of 'nameless' RNZAF persons jabbering about the ABBAJABBA and successor: ;D [The .AVI can be converted to .WMV if anyone has a problem with the .AVI. Let me know.] files.filefront.com/rnzafABBAJABBAAVI/;10034341;/fileinfo.htmlI see the website has converted the .AVI now to a 3.3 Mb .FLV video so you can download either one. If you stream download the .FLV it will be in your browser cache for saving. Mine was called "X6" (3.3Mb) but if you copy and paste this mysterious file to somewhere on your file system it will be "rnzafABBAJABBA[1].flv". NeatOjet! as the Yanks would say. ;D |
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Post by Barnsey on Apr 19, 2008 19:51:57 GMT 12
So who's is the rather large and impressive collection of A4 cockpit bits? Anyone know him, or am I missing the blatantly obvious (as usual)?
Perhaps they could help out when my far fetched plan to revive a T-Bird (and a model) comes to fruition.... This involves sacrificing virgins (nigh on impossible to come by in NZ these days, I hear) to the airplane gods and getting one for free before they get turned into coke cans. Doesn't need all those fancy Kahu electronic gizmos to perform succesive 50 ft beatups, just needs to be day VFR inside and look semi authentic.
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Post by sniff on Apr 19, 2008 19:59:55 GMT 12
That's ok, Barnsey. They couldn't find three wise men, or a virgin, in Oz; that's why Jesus wasn't born there!  |
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Post by vgp on Apr 19, 2008 20:07:59 GMT 12
Relax man - keywords are in order to-probably called wishful thinking. Welcome to the A-4 Skyhawk page. In order to complete an A-4K cockpit under construction, I require a number of components. If you are able to assist, please contact me at Chris.....@......... If you have any of the following and wish to convert them to cash, I look forward to hearing from you. Thank you! www.warbirdsite.com/museumskyhawk.html |
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Post by sniff on Apr 19, 2008 20:11:31 GMT 12
Nice to see Iggy Wood at the end of the clip; he walked the walk, and talked, and talked, and talked the talk. A great instructor, pilot, and comrade, to boot.
He, I believe, has the longest airborne time in a Vampire. He used to ridge soar the Ruahines with the throttle closed and still come back with half a tank of AVTUR. Cool guy.
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