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Hi,
This kit is $700, including the ejection seat parts and plug-in systems. Michael, Cute bird! Nice Falcon, too. I think with some care, you'll be able to get an AUW of 12 pounds. On a gas DF like an O.S. .91 (which only produced 7 pounds static in the F-16), this bird HAULED BOODIE. My gas DF one weighed 14 pounds. I also got mine yesterday, and I'm brainstorming about ways to save weight without sacrificing strength. Yes, the landing gear are cool. We removed the embellishments on the mains that caused the gear to be weaker or less reliable (like the oleos) and what you're left with are beautiful and VERY strong. You'll really like it when you have the gear and doors all plumbed to your valve and can hit the switch and watch the magic! When does the construction start?? |
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Michael,
Here's a short video of the gear coming down. I can't remember why we didn't shoot the gear going up? Anyway, this is a Yellow F-16 ARF that I turn-keyed for a bloke down under!
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m898,
Can you weigh the airframe and retracts and post the weight? Thanks, Bob |
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yeah be nice to see a break down. And I would still consider 110 ESC, the Kontronik is big and heavy, and also cant go behind the fan to keep things light and uncluttered. Trust me its a hulk of a ESC, were runnign it in the 1/8th F-16 and its still big! And Stu's fan would be perfect if you can get one, if not, while im not a fan of the size to power ratio the DS-75 is a good fit for it. but dont do it up like a 120 as copm-arf has done, do it up light. swap 1527 for a 1521, maybe raise the kv a tad and drop to 10 or 11s range. the 2 choices for 75 in nue would be 780 kv and 1050kv, noth sure which one would be a better fit for it. 120 is just gonna be to big, it'll go ok but for what you put in there might not be a lot coming out the back. as example my f-16 is less than 3 inches smaller than that one and I run 90mm in it and its a rocket.
Barry Barry |
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If you mean wing span, it's just two inches which tells me Tam has stretched the wing on his F-16 quite a bit to lower the wing loading! You are not comparing evenly.
Yellow F-16 WS 44", Length 67" Tam small F-16 WS 42", Length 54" |
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There's nothing wrong with using a 120mm fanin this palne. I used a TF4000 nd Neu 1912 1Y motor in the YA F-16 I built and it weighed 13.5 pounds, had plenty of horizontal and vertical power, and flew and landed easily with no flaps. I don't know why all of a sudden 120mm fans are considered not the right fan for this airframe when it was originally designed for a 5.25 inch fan that produced less power than the TF4000. Just take a look at the video of my F-16 if your not convinced.
By the way M898, nice plane. Kirk |
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Thread OP
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Quote:
In summary 1. Airframe (everything ie cockpit, wings, spars etc) = 2.390 kg 2. Retracts (incl wheels & rims) = 0.641 kg 3. Hardware (bolts, rods etc) = 0.356 kg hope the photos are useful - measurements are in grams |
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Last edited by m898; Sep 21, 2007 at 08:44 AM.
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Thread OP
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Quote:
The plane will be built light with the intention to run on a 90mm fan. Worst case is that it will be a little too heavy for a 90mm but it very good for a 120mm. I am trying to find out more about the DS75 ie where to buy etc. It sure looks promising as being the most efficient. |
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Last edited by m898; Sep 20, 2007 at 09:05 PM.
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Thread OP
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Quote:
I found the performance of your plane in the video very good and your setup works well. I ordered an E-Turbax fan to do some tests on this unit because I haven't found much on it. I've been looking at the TF4000 and DS-94. Being unfamiliar with Neu motors and their lesser range of winds within their motor classes compared to Hacker, i've not settled on a motor and battery setup as yet. |
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your right robert was looking at span. and I still have my yellow inlet duct here and its not that much off from the tam so I remembered in my mind it being closer! lol. Which is good cause then a straighter path could be made for ducting. And I dont think 120 is being knocked at all kirk, were just knocking around newer alternatives that are now available for it. And if your gonna do it you did it the right way with the TF cause the higher pitch is gonna take it way better. Again its a case of the weight factor and whats coming out for whats put in. I really need to add 2 pounds to my F-16 and see what the effects are. But with 90mm the Tam doesnt crawl to speed, it slams to 160 165 then the wings really start to bow, so I know there is a lot of performance that can be sucked up by slightly larger plane and weight.
Barry |
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Hi,
I think part of the allure for some is to fly a scale jet. To some, speed isn't everything. Don't get me wrong--I LOVE a fast plane, but I think if it's the main goal, a sleeker sport-type plane would do it for me. Kirk, You've got a good point. I've gotten a few emails and PMs taking me on the long-way journey through electrics. Where they end up is that I need to gut the kit and redo everything for weight and use a 90mm setup. Since I don't know much about this stuff, I actually had a few moments of doubt and then I remembered your video! A couple of people got the link to it as a reply to their warnings. Thanks for posting it, because it's what got me to give this EDF Falcon a try! |
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so 3.384kg (7.4 pounds) , add 1540grams (3 pounds) to that for 90mm 10s setup, or 2450 grams (5.4 pounds) for 120mm 12s setup, then factor servo's for a rough AUW. but thats by the book, if you can shave anywhere along the way go for it. for example without rattle trap you dont need all the trays and such, you can just velcro electronics on the sides of the fuse. I think if your crafty you could pull of 10.5 pounds with 90mm, with a good setup 8 to 8 1/2 pounds thrust could be had installed. At 120mm your looking more at 13 pounds with 9-10 pounds installed if everything goes very well.
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Thread OP
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I will take my time with this one - no rush. Barry, would you know where to buy a DS75 fan ? I asked around over here in Aust and it doesnt appear to be a commonly stocked item unlike the DS51 and DS94. |
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Check with COMP ARF I think they will be the first to get them.
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