cscotthendry
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Everything posted by cscotthendry
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I had the exact same thing happen to me (without the crash) when I took a friend up for a flight. It was a windy, gusty day and I got to the point he describes where you're so close to the runway, you start to concentrate on the runway and lose focus on the airspeed. Either my aircraft is more forgiving than his, or I reacted quicker because I managed to recover my situation with full throttle and pushing the nose over. In retrospect, I think I flew through about a 10kt wind shear and my airspeed must have been close enough to stall speed that when we flew out of the gust, the left wing stalled and started to drop. At first it felt like an uncommanded left turn bank. I put a little pressure on the ailerons (wrong thing to do, I know) and the plane didn't respond as I expected, so I immediately firewalled the throttle and pushed the nose over. Thank goodness for training. Now, I watch the airspeed like a hawk on short finals. -
What happens when hooning
cscotthendry replied to Wilfred's topic in Aircraft Incidents and Accidents
Hmmm, why should “mates” be responsible for policing other peoples' behaviour? Every time I've tried that I end up being “the bad guy”. If someone does something stupid, I'm just going to get as far away from them as possible because they're likely to end up like the guy in the video and I can't be bothered performing CPR on suicide attempts. -
Kasper: I wrote to Aeropilot and they sent me a letter of approval for the prop change. I'm not sure what other paperwork I'll need to do when I go to sell the aircraft. The local dealer made an arrangement with Aeropilot after I fitted my Bolly, to list those props as an official “option” here in Oz. The Bolly people were brilliant to deal with. They asked me a series of questions and that led to a reccomendation. They shipped the prop, hub and spinner very quickly. I purchased the reccomended prop and then set it up. It took a couple of gos to get the right pitch for our aircraft, but that's pretty normal.
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Skippy: I don't have many facts to rely on, but here's some opinion. My aircraft came with a Woodcomp prop. On our first major cross country, we got a largish chip in the leading edge, beyond the coverage of the metal protector strip. My concern was that having a wooden core, the core would soak up moisture from the air and change dimensionally enough to crack the composite covering. Sooo, I changed to a solid composite prop (Bolly). The Bolly is also locally made and supported which was a big factor in my choice. The other big factor was Woodcomp's policy that any repairs required returning the prop to the factory. That had the potential of almost permanently grounding the aircraft. Having said that, I think an obvious factor would be price and weight change. If you add a kilo way out at the front of the plane, you're going to have to offset that by adding or moving some other weight.
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I'd like to do a low 'n slow over the Serengetti wildlife park in Africa, or fly into Oshkosh or Sun 'n Fun. OME, Victor 1 isn't as scary as I thought it would be. At 80KIAS it took just 18 minutes from Long Reef to Jibbon Pt. Don't dream it, do it!
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Sorry to hear about your eye troubles Ian. They sound serious. I have had a few issues with my eyes, but they have all been treated successfully. It was only when I started having these issues (torn retina and wet Macular Degeneration) that I really started to value my sight. Fortunately for me, laser treatment welded my retinas back and I'm currently having injections in the eyeball for the MD. When we were kids, we had an oath to swear that what we were saying was true; "Cross my heart and hope to die. Stick a needle in my eye." Having a needle stuck in my eye was about the worst thing I could ever imagine. It turns out that I'll tolerate some unimaginable stuff to keep my sight. And it turns out having an injection in your eyeball is not quite as bad as it sounds. The laser treatment though, is another matter entirely. One of the worst experiences in my life. Again, sorry to hear about your troubles.
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Dumb and Dumber (Ultralight crash )
cscotthendry replied to Butch's topic in AUS/NZ General Discussion
You never know what is going on in other peoples' cockpits. We went to a popular fly in brekky a couple of weeks ago and arrived about 8:30 am. The airfield has parallel runways, 12-30. All the traffic were using 12 and there was lots of activity. We were number 3 on 12L and there was another aircraft behind us. On 12R I saw atleast two aircraft in circuit, one of which was on final when we were. As we wererolling out on 12L, I saw an aircraft taking off on 30L against the traffic flow! The radio burst into life with pilots calling the offending aircraft but no response. As I was taxying to the parking area, the miscreant FINALLY made a radio call to turn base on 30L again. I got on the radio and blasted out a “You're going the wrong way!” To try and headoff a disaster. I never figured out how this moron didn't see all the airplanes landing on two runways in the other direction, nor how he managed to taxypast all the traffic on the taxiways going the other way, nor how he didn't hear all the radio calls announcing everyone's activity. This guy had no business being in the air that morning. -
I started on this site when I was building the Nynja kit plane. I found it very valuable for info about how aircraft work and about aviation regs etc. Since I finished and sold the Nynja, my interest in the site has waned a bit, but I still visit regularly. The guy who was the Skyranger dealer told me that interest in kit building had dropped so low that he effectively stopped the dealership. It was costing him a lot of money for advertising and insurance and the kits weren't selling. I wonder if the drop in interest in building is related to increasing regulation of recreational aircraft and that in turn is related to a drop in interest in the forums. BTW, I have noticed an increase in discussions about regulations in a lot of the threads I read, but that is just anecdotal evidence not backed by any statistical analysis.
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I tried one of t hose cables that charges the gopro and taps off the audio. The gopro has an avc function on the audio that (at leaston my old gopros) can't be turned off. That automatic volume control would crank the volume up when there wasn't any talky-talk going on and all it did was to amplify the electrical noise to nuisance levels. Sooooo... I reverted back to my digital voice recorder. I have to sync the audio to the video when I'm editing, but my video editor software makes that pretty easy.
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The cruise speed of a given engine has as much to do with the dragginess of the airframe and the pitch of the prop as horse power. You say the 100hp Rotax cruises at 80kt? It must be towing a fairly draggy airframe. Mine cruises at 110kt in my aircraft. In any case, I don't see comparing two completely different engines as likely to give meaningful answers.
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I know quite a number of aussies that pronounce “nuclear” as “ nuke you lar” Hmmm, so you lot aren't perfect either. Enough with the grammar policing eh?
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$260 is too expensive? What's your life worth? I just spent $1700 on a five year rubber replacement kit from Rotax, fuel pump included. Even though the rubber bits all look OK to me, that is what the manufacturer specified and they spent a lot of money and time figuring that out. It's part of the reason Rotax engines have a reputation for reliability.
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Another Skyranger takes to the Skies in Queensland
cscotthendry replied to Blueadventures's topic in Skyranger
That's not Harry, that's Dicky! -
Purchasing ex training aircraft
cscotthendry replied to skippydiesel's topic in Aircraft General Discussion
Skippy: I think you need a lot more info than that. 1) How has it been maintained? Sure, training aircraft have to be L2 maintained, but there are L2s and there are L2s, if you know what I mean. The appearance of the aircraft, especially under the cowlings will tell you something about this. 2) Was it hangared or left outside? What shape is the paintwork and the glareshield top in? Is there any evidence of corrosion? How do the windows, especially the windscreen look? Scratches? Discoloration? Cracks etc? 3) What is the general condition of the interior? 4) How does the engine run? Does it use oil? What condition is the prop in WRT scratches, chips etc. Has the prop been repaired for stone chips? Has the aircraft ever had a prop strike? I could go on pretty much all day with this, but I think you get the drift by now. If you know a good L2 who hasn't been involved with the maintenance of the aircraft, get them to do a pre-purchase inspection and report. Then if it's a common aircraft like a Jab or a Tecnam (which most school aircraft are) have a look online to get a feel for the value of the aircraft. Then armed with the report, start negotiating with the seller. The short answer is: there's no formula for discounting a used aircraft. The right price is what the seller and the buyer agree on. -
Yenn: Something looks screwy with your math. Are you saying that 1026hPa is 2 higher than 1028 hPa? That doesn't seem to add up to me! [Edit] OK, I think the penny just dropped for me so I'll add my 2 cents worth for an explanation: 1) Air pressure rises as we descend and decreases as we go up. 2) As Yenn said, if the current pressure at MSL is 1028 and we are sitting at sea level and the altimeter is set at 1028, it will show 0 feet. 3) If we set the subscale for 1026, we are telling the altimeter that the current atmospheric pressure at MSL is 1026, but it is seeing 1028. 4) Since the altimeter 'knows' that pressure increases as you go lower, it is going to see the current 1028 (higher pressure) as being below sea level. Riles: Thanks for posting that question. It has helped get my brain in gear on this.
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Gary: I still don't het that. If I tell my altimeter that it is 60 feet higher than it really is, shouldn't it report that I am 60 feet higher than I really am?
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That HDD space is just the start from what I saw of the reviews. It requires a fast internet connection to download the GBs of scenery which it apparently will do 'on the fly'. Microsoft have a long history of getting Flight Sim out ahead of the technology. When I was building my 'pit, I used FSX which would only barely run on the equipment of the day. It had things like animated ripples and waves on the water surfaces and complex weather generators and traffic. You couldn't run it with more than one or two of these whizz bangs enabled. The new FS looks like it will be another weapon to drive hardware sales (again!). Out of curiosity, does anyone know what the inteface will be for connecting sim hardware? FSX had Simconnect which was a jump in the right direction.
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Not exactly our last flight, more like a lockdown project to remind myself what flying is like. Just some pretty bits from our adventures. https://www.youtube.com/watch?v=utUBgEASzaI
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How is the linkage connected to the throttle lever. In the video it looks like a rod linkage. How did you solve the movement between the engine and the airframe with respect to the throttle linkage. That is, as the engine moves, it would change the throttle setting slightly (and continuously) and with the vibration, it might cause increased wear in the carbie mechanisms. Secondly, do you have a failsafe setup as with the stock setup so that if the linkage separates in flight from the control the engine will still go to full throttle?
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Hi Danny: Yes, I like the Aviasport gauges. They are designed for the Rotax and color coded to make for 'at a glance' reading. The one drawback I had with those gauges was that the tacho had a very high impedance input and was sensitive to over-voltage input signals. The effect of that was to make the tacho jump around at certain RPM. The fix was a 200 ohm resistor between the signal input and ground. The RPM pickup in the Rotax is an inductive coil and when lightly loaded (as with a high impedance tacho input) can produce voltage signals of quite high amplitude. These voltage pulses can cause the junction of the input transistors to break over and give erratic triggering. The resistor loads the tacho coil enough to bring the signal spikes down to safer levels for the tacho. Since that tacho coil is not used to drive anything else, it's totally safe to do this.
