Vikkyvik you are spot on! I'm getting confused between aiming point and TDZ lighting.
Gday just been having a look at Heathrow Chart 11-4A which is the CAT <acronym title="Business Air (United Kingdom)">II</acronym>/III ILS <acronym title="Moscow - Domodedovo (DME / UUDD), Russia">DME</acronym> 27R, and have a couple of quesitons regarding the minimum RVR and what you'd expect to see...Jump to post
G'day I am interested in examples of 747 tech crew airline procedures which have changed due to other aviation accidents or incidents. They don't have to be big, high profile, international accidents. Even small incidents which may have occured on the ramp/ground and led to a policy change. An exmap...Jump to post
Thanks for the advice. Please keep it coming... Any experience out there with <a href="http://www.einfotech.com.au/shop/product_info.php?products_id=3500" target="_blank">Sony Cybershot DSC-W200</a> Additionally, with reference to the <a href="http://canon.com.au/products/cameras/digital_compact_cam...Jump to post
Gday folks... I'm in the market for a digital camera which will be used for a combination of aviation photography and social occasions. I believe you guys are the authorities so thought I might ask your opinions. These are the main requirements... 1. Small and neat (ie: a consistent shape which won'...Jump to post
Not airline related but another example of 'communication difficulties'...
(Contains some language)
In <acronym title="Asiana Airlines (South Korea)">OZ</acronym>... SCHEDULE 8 Paragraph 42ZC (4) (d) MAINTENANCE THAT MAY <acronym title="Aircompany Tavria-Mac (Ukraine)">BE</acronym> CARRIED OUT <acronym title="Air Nauru">ON</acronym> A CLASS B AIRCRAFT <acronym title="OLD: Britannia Airlines (Unite...Jump to post
<i>So the turn coordinate will still indicate the direction of the spin correctly even in an inverted spin?</i> No. For aerobatic aircraft it is better to have a <b>turn and balance indicator</b> (bat and ball) rather than a <b>turn coordinator</b>. A turn coordinator is sensitive to both yaw and ro...Jump to post
<i>We hardly use the crossfeed valve on our 172/R whereas on the 414 it's not uncommon to use it.</i> Crossfeed on a 172R? <img src="/discussions/graphics/smilies/eyebrow.gif" alt="eyebrow" border=0> You probably don't use it much 'caus it doesn't exist 57AZ <img src="/discussions/...Jump to post
Sorry to bring this one back up the top... G'day 2H4 - thanks for the clarification. I'll try to explain where I was going wrong... Although i'm aware that a higher reading is desirable and will spin the gyros faster, I was getting confused as I was thinking the higher reading we get (eg: lets look ...Jump to post
BMAbound and 2H4 - correct! What are the suction limits in the 172? I have a real question (not 172 specific) which hopefully someone will be able to answer (I don't know the answer)... If the vacuum gauge is indicating toward the lower end of the scale would that mean that due to the greater differ...Jump to post
G'day Theflcowboy Here you can see the runway turnoff lights mounted above the landing lights and angled to illuminate any taxiways coming off the runway. <br><center><font color="#EEEEEE" size="1" face="ARIAL, Helvetica, Geneva"><a href="/open.file/349426/L/" target="_blank">View Large</a> <a href=...Jump to post
<i>Many open automatically when the pressure in the intake drops beyond a predetermined value, others are manually activated.</i> Just to expand a little.... In aircraft i'm familiar with the alternate air 'door' is usually spring-loaded to closed, and in the event that the intake becomes blocked th...Jump to post
I'd love to see some photos of runways / strips where it's only just possible for small aircraft to make it in. Along the lines of the strips you see in the Air America movie. Strips on the sides of mountains, on steep slopes, really short strips, strips surrounded by trees etc... You get the idea &...Jump to post
G'day Mozart I suspect you're most interested in airliners but I'll explain the unpressurised, light aircraft scenario. Cold air - simply open a vent and use the freestream air. Not much good therefore if you're slow (eg: taxi) or lower where the air may be too warm. Hot air - a shroud is fitted aro...Jump to post
I strongly believe diesel is the way of the future for <acronym title="Garuda Indonesia">GA</acronym> aircraft. Advances in technologies and materials have the brought the weight of the diesel engine down around its gasoline counterpart for a similar power / torque output, but for a much lower fuel ...Jump to post
Slamclick I don't know the US rules with respect to instrument approaches but i'd bet that the definitions of precision approach, NPA, <acronym title="Atlantic Coast Airlines (USA)">DH</acronym> and MDA are the same the world over. That being the case everything Ralgha has written is entirely accura...Jump to post
Pretty much as the title says - I was wondering how the maximum landing weight for light aircraft (read < 5700 kg / 12500 lb) is determined? For example the MLW for the C-182S is 150 lbs less than the MTOW - is this figure designed to protect the undercarriage in the event of a landing at the maximu...Jump to post
G'day Lehpron I guess the intersection of the power required and power available curves on the left would denote the <i>minimum</i> level flight speed. Below this speed the power required is greater than the power available. This is a bit of a strange circumstance though because most aircraft are li...Jump to post
The speed for maximum range is found by the tangent to the power required curve drawn from the origin. This gives the minimum ratio for power required to airspeed. The intersection on the right in this graph gives the maximum level flight speed (ie: where the power available = power required). The s...Jump to post
Our flight crew licenses are getting the same treatment.
It's very real. It's related to delaying and advancing your 'body clock'. Have you ever noticed travelling west is much easier than east? The body finds it far easier to delay than advance its circadian rhythms (which IIRC is related to body core temperature). The phenomenon is similar to what peopl...Jump to post
1. Decrease. Remember Lift = Coefficient of Lift * [1/2 * rho * V squared] * S <LI>Coefficient of Lift is related to the wing's AoA, flap settings, its actual design etc...</LI> <LI>[1/2 * rho * V squared] is the dynamic pressure sensed at the pitot tube (or IAS),where rho = air density, V = true ai...Jump to post
For interest's sake a couple of definitions form the Aussie docs: <b>Moderate Turbulence.</b> There may be moderate changes in aircraft attitude and/or altitude, but the aircraft remains under positive control at all times - usually, small variations in air speed - changes in accelerometer readings ...Jump to post
G'day Bragi <i>I was wondering if it's done soon after touchdown to improve braking action, or is it done later to use the drag the flaps provide to slow down the aircraft?</i> On the big jets you get the best of both worlds. On touchdown you may have noticed the ground spoilers on top of the wing d...Jump to post
In terms of 'robustness' my vote would definitely go to older aircraft such as the DC-3. Modern aircraft are designed using modern methods which results in a structure which is right on the limit of what the regulations require. In the olden days structural and material anaylses weren't nearly as pr...Jump to post
The Centurions which power the DA-42 don't actually have a TBO they have a TBR - <u>T</u>ime <u>B</u>etween <u>R</u>eplacement. It's currently at 1000 hrs but they're targeting 2400. From the sounds of it the DA-42 is an awesome aircraft - about time <acronym title="Garuda Indonesia">GA</acronym> to...Jump to post
It's also interesting to note that some runways don't actually represent their magnetic heading to the nearest 10 degrees (ie: + / - 5) For example at YSSY the magnetic heading of runway 07 is actually 062 degrees (which you would think would be called runway 06). However there's also a 16-34 runway...Jump to post
G'day Both of the photos actually have a T-VASIS installed as opposed to a PAPI system. The four horizontal dots aren't PAPI - they mark the midpoint of the T-VASIS system. When dots are visible above the line you're too high and when dots are visible below the line you're too low. No dots visible a...Jump to post
<i>When I was working toward my PPL, my instructor and I were doing the required "turns about a point" on a perfectly calm day and I got around and hit my own wake. A C-172, so no big deal, but still a bump.</i> Same thing happens with a loop - a little buffet on the exit. Easy way to tell you've na...Jump to post
<i>0.9 (9/10) minutes? I.e. 90 seconds? Maybe?</i> I think you'll find 0.9 of a minute is 54 seconds. <img src="/discussions/graphics/biggthumpup.gif" ALT="Big thumbs up"> We know what you're getting at and that would be my guess also! <img src="/discussions/graphics/giggles.gif" ALT="La...Jump to post
G'day Vorticity From the ICAO document titled “GUIDANCE MANUAL <acronym title="Fortaleza - Pinto Martins (FOR / SBFZ), Brazil">FOR</acronym> THE TRAINING <acronym title="Transports et Travaux Aériens de Madagascar">OF</acronym> HUMAN RESOURCES <acronym title="Air Nauru">ON</acronym> THE <acronym tit...Jump to post
When only 4 satellites are in view (need 5 for RAIM), some GPS systems use the pressure altitude from the txpdr (or an approved altimeter) as the 5th 'distance measurement'.
It's called barometric aiding but using all satellites is preferred.
There's a few interesting videos here ( <a href="http://www.airspacemag.com/ASM/Mag/Supp/FM01/Hammer.html" target=_blank>http://www.airspacemag.com/ASM/Mag/Supp/FM01/Hammer.html</a> ) which demonstrate flutter. <br><center><font color="#EEEEEE" size="1" face="ARIAL, Helvetica, Geneva"><a href="/open...Jump to post
There's a decent list of TLA's ( ) here in a past thread
G'day Tangoecho QNH is the pressure at sea level whereas QFE is the pressure which is set on the altimeter's subscale to give a 'zero' reading at some point above the ground (eg: at an aerodrome). So if you set QFE at an aerodrom (rather than the QNH) your altimeter will read height above the aerodr...Jump to post
A feathered prop has <u>less drag in-flight</u> (ie: with forward airspeed) but <u>more drag on startup</u>. When starting a feathered prop the blades are 'slapping' the air rather than 'slicing' through it - more drag (resistance). For this reason direct drive turboprops (which must swing the prop ...Jump to post
As Fred mentions, GPS gives altitude above a reference level. In the case of GPS (ie: the US global satellite navigation system), the reference is World Geodetic System (WGS) 84. This describes an imaginery ellipse around the earth which approximately resembles the shape of the earth. GLONASS (the R...Jump to post