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#1
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Charlie Quebec wrote on 8/14/2018 9:07 PM:
The performance gain was .25 of an L/D point at 100kt, at a cost of $7000 aust. Must be the most expensive LD per dollar ever. Irrelevant - no one adds winglets to gain L/D at 100 knots; generally, it's to improve the low speed handling, thermalling, and low speed L/D. -- Eric Greenwell - Washington State, USA (change ".netto" to ".us" to email me) - "A Guide to Self-Launching Sailplane Operation" https://sites.google.com/site/motorg...ad-the-guide-1 - "Transponders in Sailplanes - Dec 2014a" also ADS-B, PCAS, Flarm http://soaringsafety.org/prevention/...anes-2014A.pdf |
#2
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Did it ever occur to you that different winglets might have less drag at 100kt?
Perhaps try thinking before stating the bleeding obvious. Let’s make it simple for you, old winglets work equally well at low speed, more drag at high speed. |
#3
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![]() Perhaps try thinking before stating the bleeding obvious. Let’s make it simple for you, old winglets work equally well at low speed, more drag at high speed. I'm no expert on winglets, but it's my understanding that not all old winglets work equally well at low reynolds numbers. I've heard some factory winglets were quite ineffective so the owners went to 3rd parties. Someone help me out here; I believe I read that some winglets significantly improved the safety of certain models (Ventus? ASW20?) from low speed wing drops. Not a physicist, yet I highly doubt you can accurately measure a 0.25 L/D improvement at high speeds. What method did he use to test? That seems to be well within the noise. (BTW you got docked points for rudeness. It doesn't encourage free exchange of ideas. I'm sure you meant well.) |
#4
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Quarter million dollars.....yikes!!!
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#5
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On Thursday, August 16, 2018 at 7:48:30 PM UTC-7, Bojack J4 wrote:
Quarter million dollars.....yikes!!! After posting in the GLIDING INTERNATIONAL thread, I realised that there is a great way to get a fire sale ASG29: Like Rick Indrebo, buy a wreck and spend a few years working on it. Jim |
#6
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Both the JS3 and the Ventus 3 are much less expensive. You are misinformed - some posters should get their facts straight before they hit send.
Brett |
#7
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Well, $190K really is much less expensive than $250K, but it's still a
lot of money. On 8/17/2018 1:50 AM, Brett wrote: Bojack J4;974727 Wrote: Quarter million dollars.....yikes!!! Both the JS3 and the Ventus 3 are much less expensive. You are misinformed - some posters should get their facts straight before they hit send. Brett -- Dan, 5J |
#8
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On Friday, August 17, 2018 at 5:43:09 AM UTC-7, Brett wrote:
Bojack J4;974727 Wrote: Quarter million dollars.....yikes!!! Both the JS3 and the Ventus 3 are much less expensive. You are misinformed - some posters should get their facts straight before they hit send. Brett -- Brett No, I am not. Okay, perhaps I am on the high side by $20,000. If you have never ordered a new glider, budget twenty percent more than you price it out. In September of 2015 a new well equipped ASG-29Es delivered to Houston was $194K. A worse exchange rate, a yearly increase in price, shipping costs will be higher, new model base price increase...several years wait with more yearly price increase. EVERYTHING is an option that costs. If you are ordering a new 15/18 German or South African glider with a turbo for delivery in three years, it could get really uncomfortable if you do not have the better part of a quarter million dollars budgeted. I have ordered several new gliders and have always been unpleasantly surprised at how much more they cost than I had priced and how much longer they took to arrive than promised. |
#9
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Can't you pay the quoted price when you place the order and have it
contractually fixed? On 8/17/2018 9:02 AM, Jonathan St. Cloud wrote: On Friday, August 17, 2018 at 5:43:09 AM UTC-7, Brett wrote: Bojack J4;974727 Wrote: Quarter million dollars.....yikes!!! Both the JS3 and the Ventus 3 are much less expensive. You are misinformed - some posters should get their facts straight before they hit send. Brett -- Brett No, I am not. Okay, perhaps I am on the high side by $20,000. If you have never ordered a new glider, budget twenty percent more than you price it out. In September of 2015 a new well equipped ASG-29Es delivered to Houston was $194K. A worse exchange rate, a yearly increase in price, shipping costs will be higher, new model base price increase...several years wait with more yearly price increase. EVERYTHING is an option that costs. If you are ordering a new 15/18 German or South African glider with a turbo for delivery in three years, it could get really uncomfortable if you do not have the better part of a quarter million dollars budgeted. I have ordered several new gliders and have always been unpleasantly surprised at how much more they cost than I had priced and how much longer they took to arrive than promised. -- Dan, 5J |
#10
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I remember offering to go in 1/2 on an ASW-24 (new, when they were new as I was just starting flying competitions). The DM took off, plus addons, the end price was double by the time it was billed.
Way out of my budget. The other buyer found someone to go half on it. |
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