RE: New virtual caller app for iPhone
Looks great! Is it possible to write your own sequence. To use it for unknowns?
Posted on: 5/21/2013 5:24 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11518028

RE: F3A Results - SPOILER
ok, this will be an easy demonstration, who is going to let us take his airplane up verticaly with no wings just to prove it would not go straigt up?? (its a joke!! but we all shoud agree that it wold be a cool demonstration)
Posted on: 8/6/2012 6:04 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11183466

RE: F3A Results - SPOILER
I'm not insulting anyone, if you want to have an adult discussion about model airplanes, good, you are welcome, its fun and that's why we are all here, If you want to prove your points simple by insulting others then I'm done here. my point is simple, a wing will never be parasite drag, in the up and down lines, the forces are cancelled (down trust, wind, elev trim just to name some factors) to make a straight line up or down, its about the straight line described by the airplane's trajectory, not its attitude, but the wings will not stop working, they ARE induced drag.
Posted on: 8/6/2012 10:53 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11182972

RE: F3A Results - SPOILER
Tony, nobody here is treating you with disrespect so you better choose your words carefully and NO, wings are never parasite drag!
Posted on: 8/6/2012 10:00 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11182921

RE: F3A Results - SPOILER
Wings don't produce any lift in the up and down lines???? let me ask you something; does your wings have a on-off switch??? no, they ALWAYS generates lift I KNOW for a fact that Bryan is right. if you guys don't want to try, good. about flying in altitudes, a biplane is way better, you want the big wings up here.
Posted on: 8/6/2012 8:42 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11182856

RE: F3A Results - SPOILER
If an airplane is designed to fly slow, it will go down slow, and I'm not saying "induce drag on a downline" I was just saying that if you need to have any drag on an airplane to make it slow, use induced drag, not parasite: and just to be clear: induced drag is the one that comes from generating lift, parasite drag is everything else that not (the landing gear, servos, the wing struts on a bipe, the big TE rudders, etc) I just beleive that any unwanted drag will do something wrong, specialy in an F3A airplane.
Posted on: 8/5/2012 6:05 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11182222

RE: F3A Results - SPOILER
There is a VERY BIG difference between biulding drag into the airplane, is just that the new bipes are designed to FLY SLOW, without parasit drag, just using induced drag, and in the air it makes a very big difference to take a down line with a slow bipe Vs the same down line with an airplane that uses prop braking trust me! you have to fly it to believe it! in my opinion a YS powered bipe is the way to go
Posted on: 8/5/2012 2:50 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11181956

RE: CA Model XURAMA BIPLANE Build Glow Powered
Hello All! After hundreds of flights on this biplane which is the best I have flown I decided to try to make some modifications of my own to create my own version and change a few things. First also YS power, in my opinion is the only way to power a bipe, the power its incredible, the sound, smoke etc, all help to create a beautiful flight presentation, but this time no top hatch on the fuselage (i just glued permanently the supplied hatch and made a new one on the bottom) then completely redesigned wings and stabs, this to get rid of the mixing and to enhance the awesome qualities of this bipe even more. - more wing area - new wing shape - increased wingspan - different airfoil - smaller stabs my goal was, better snaps (more crisp) better spins, both are incredible easy to stop reduce coupling on rud-ail and rud-elev they are both almost gone, some fine tuning and rud-elev should be gone, rud ail will be gone on a future version. I have to thank Bryan Hebert for all his help in this project! THANKS BRYAN!!! some pics.
Posted on: 7/30/2012 8:05 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11174446

RE: YS 170 DZ CDI
Hello Chris! I had that problem on one of my 170s never on the 175s, I fix it by polishing the barrel, also check that the screws for the back plate are not over tight, therefore twisting it. best regards TUNY
Posted on: 7/5/2012 6:34 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=11144643

RE: Measure the length of a pattern plane
I noticed the same thing on my Passport in 09 before the worlds, and just to be sure I made a rudder with the straigth trailing edge and same area so it will be shorter, model flew exactly the same and you can be relaxed in every model processing.
Posted on: 2/7/2012 5:57 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10947829

RE: Will YS ever go gas/petrol?
MT I'm not saying that it cant be done or that you dont save, its just that people who fly YS use it because they want the best engine and the best power source out there, not because its cheap... for example, I'm sure a non carbon golf club is cheaper.... but you want the best! more economy is good, and people will like it, IF it gives you same performance... for example, the CDI, that saves a lot of fuel and has the same performance or better than glow plugs, total success! its like sports car.. none will give you fuel economy... you just want the power!! no one when buying a ferrari, porsche, Lamborghini, etc is looking at its fuel economy. in this case YS is the Ferrari of F3A engines you are right! in the cost you should include the purchase and maintenance of the engine, trust me after 350 flights... you wil need a new DLE about the wet sump, another reason is why carring the weight of the oil??
Posted on: 1/19/2012 1:40 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10917407

RE: Will YS ever go gas/petrol?
[quote]ORIGINAL: MTK [quote]ORIGINAL: tuny I dont think there is a way to make F3A more affordable, the entry classes sure are as cheap as you like, (nobody needs a full 2 meter ship to start in pattern) so I think YS developes engines for F3A and that means state of the art and only the best possible. I beleive there is no reason for a cost efective YS 175 running on petrol, the same reason
Posted on: 1/19/2012 10:02 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10917094

RE: Will YS ever go gas/petrol?
I dont think there is a way to make F3A more affordable, the entry classes sure are as cheap as you like, (nobody needs a full 2 meter ship to start in pattern) so I think YS developes engines for F3A and that means state of the art and only the best possible. I beleive there is no reason for a cost efective YS 175 running on petrol, the same reason there is no need for a F1 car to be more economic to run
Posted on: 1/19/2012 6:14 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10916787

RE: YS DZ 175 advice required
I like this, works perfect! https://duraliteflightsystems.com/index.php?_route_=powerbox-systems/powerbox-systems-switches&product_id=282
Posted on: 1/8/2012 11:38 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10898111

RE: CA Model XURAMA BIPLANE Build Glow Powered
Alejandro, thatis the cavity for the servo wires, yes, it goes all the way to the wing tip, you can leave it like that, there is no structural damage whatsoever. Ese es el calado para pasar los cables de los servos, dejalos tal cual estan, ya que no representan ningun riesgo estructural. Saludos! TUNY
Posted on: 12/27/2011 5:14 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10877736

RE: CA Model XURAMA BIPLANE Build Glow Powered
else than a 4 cycle! Thanks TUNY
Posted on: 12/26/2011 6:00 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10876431

RE: CARF-Models P-47 Thunderbolt
Its a real shame that the pictures dont make justice to the impressive work that Jack made on this plane, you have to see it in person!!! once again congratulations on this amazing work!!
Posted on: 11/20/2011 9:22 AM by Author "tuny" in the forum "RC Warbirds and Warplanes"
http://www.rcuniverse.com/forum/fb.asp?m=10820816

RE: Chip Hyde Split with CA Model
.
Posted on: 11/3/2011 3:17 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10793322

RE: CA Model XURAMA BIPLANE Build Glow Powered
Yes Mike, PM me your e-mail and I will send them. Thanks
Posted on: 9/4/2011 6:22 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10701640

RE: Pattern weight rule - why?
Instead of fighting about what happens when someone brakes the rules, why not flying legal planes?? I dont think is any trouble with today airframes and equipments to be under 5kg
Posted on: 8/29/2011 8:27 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10692796

RE: CA Model XURAMA BIPLANE Build Glow Powered
Hello Gregg. yes, this is a stock kit, I modified the fuselage to use glow power, and made my own formers. TUNY
Posted on: 8/29/2011 7:13 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10691697

RE: CA Model XURAMA BIPLANE Build Glow Powered
Alejo I just sent you a PM Thanks TUNY
Posted on: 8/27/2011 4:17 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10689734

RE: CA Model XURAMA BIPLANE Build Glow Powered
Thanks Mike!! After many fligths I like it every day more, this is really an amazing airplane, I would not change anything, in fact I'm waiting on a second kit to build it exacly the same. the correct weigth is 4.850 thanks TUNY
Posted on: 8/16/2011 7:45 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10673816

RE: Extreme Flight Vanquish 2m Build Thread
[quote]ORIGINAL: hezik 10 years ago, you would have been right. Lipo's these days are overspecced for F3A. These days we hardly really use them. A normal 10s setup will pull a maximum of about 70A during flight. If you use a standard 25C 5000mAh pack, this is specced for 25*5 = 125A continous draw. The difference gets bigger if you start using 35C (=175A), 45C (=225A), or even 65C packs (325A). We are not 'heavy users' from a lipo point of view, that role is more for heli-flyers, who pull way more power out of their packs than we do. I flew the Sebart WindS 110 on 8s for more than a year, using 2 Zippy 5000mAh packs, which are about the cheapest packs you can find, and got well over 150 flights a pack. And I abused those packs by charging them on 2C, while the manufacturer specs them for 1C charging. My recent setup will go way above 300 flights on Hyperion Lipo's, and since I fly 8s on a 2m bird, I draw more amps than the average flyer (max 100A). I use 25C hyperion packs. For around 400 dollar you can buy a charge setup that will charge a 10s 5000 lipo with 5C, including the power supply, meaning a pack will charge in under 15 minutes. So suppose you were to buy this setup and 2 10s packs. That would set you back around 700 dollar for at least 600 flights. Now go fly 600 flights with an YS 170CDI. To do so you'll need about 150 litres of fuel, 20% or 30% nitro. In europe you'll pay about 40 dollars for a gallon.You would need 40 gallons. That would be around 1600 dollar. So on the one hand you have electric, 700 dollar for 600 flights, on the other hand you have fuel, 1600 dollar for 600 flights. Now even if your packs would only last half as long, than it would be around 1100 dollar for electric against 1600 dollar for fuel. And then I even didn't take into account that you can buy a totaly viable electric F3A drive solution for around 400 dollar, whereas the YS, complete with mount and other stuff, will cost more than 1000$. Even if you have no AC available on the field and have to buy a generator, then it's still cheaper. Also keep in mind, I also calculated in the charger. You don't need to buy a new charger when your batteries run out, so after the initial investment, the difference will even get bigger. There is really no need to have any discussion about what costs less, it's a hard undisputable fact that EP is way cheaper than glow. Now if you were to use a gas engine, the difference would be smaller, but still EP would win. Nice to see the comparison with the spot on. I had a similar setup on electric, the Sebart WindS 110. Now these are stone cold facts, not opinions. I used a total of 4 zippy packs to fly 1000 flights with it. That cost me an average of 135 dollar a pack, so 4*135 = 540 dollar in total. I used a Hyperion charger that cost me 200 dollar, and a power supply that cost 120 dollar. The engine and ESC cost me a total of 300 dollar. So I paid 1160 dollar in total for engine, esc, packs, charger, power supply. That amounts up to 1.16 dollar per flight. Now you go do the math for your spot on.. and don't forget to include the engine, mount, and so on ;) [/quote] You are comparing the top glow engine with the cheapest electric choice, if you want to make a real comparison you have to compare apples to apples. how much for a hacker/plett-jeti-thunder power combo???? and a nice charger??? I did tried electric and I still prefer glow. a good YS engine is as reliable as an electric motor.
Posted on: 5/25/2011 2:03 PM by Author "tuny" in the forum "Electric Pattern Aircraft"
http://www.rcuniverse.com/forum/fb.asp?m=10540187

RE: CA Model XURAMA BIPLANE Build Glow Powered
Thanks Chip!!! I'm glad you like it!!! See you there!! where are you staying in Muncie? Best Regards! TUNY
Posted on: 5/9/2011 3:26 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10510626

RE: CA Model XURAMA BIPLANE Build Glow Powered
Thanks Guys!! I'ts great to hear that you like it! I really appreciate it Chris, prop is APC 19x11. Sean, great idea on the PDF, if you can sent me a copy when you are finished. Best regards! TUNY
Posted on: 5/9/2011 8:17 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10509940

RE: CA Model XURAMA BIPLANE Build Glow Powered
test flights today. The airplane flew great, very slow, CG was almost perfect, few adjustement needed, so far I have rud to ail mix 3%, rud to elev 2% after more testing I can tell more, only 4 flights today. but so far its a great airplane for sure, Rudder authority is amazing so rolling maneuvers are very easy to make. I will post a full report after the trimming process is completed. pics...
Posted on: 5/7/2011 4:19 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10507037

RE: CA Model XURAMA BIPLANE Build Glow Powered
Thanks Gregg! in my experience the YS mount is the best, I never had one vibrating more in time, check the oil in the shock absorber Doug for pricing you have to call or e-mail CAmodel
Posted on: 5/7/2011 4:13 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10507025

RE: Should weight and 2Meter rule be modified in F3A?
Why complain about the weight limit? and think its easier with glow engines? I have personaly build both and with glow or electric its not hard to make weight with any of them, in fact the ligthest F3A plane that I have build was electric. the problem with take of weight is logistics at contest, it will be necesary to weight every airplane before every flight
Posted on: 5/6/2011 12:36 PM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10505198

RE: F3A Two Meter Rule
the problem is Pattern Flyers not weight or size, there are several cheap airframes out there, with several cheap engines, or cheap electric setups. we just CHOOSE not to use them. pattern can be as cheap as YOU want it or as expensive as YOU want it. any change in the rules will just make everything we have obsolete and we will net to buy new fancy state of the art airframes. lets compare the REAL cost of IMAC Vs Pattern and I am sure pattern is cheaper. dont just compare a pilots models 40% Yak vs an Oxai Axiome. its not fare figth, if you want to compare Oxai, then compare it with an equivalent hand build, hand painted IMAC Airplane. for example, how much for a CARF Valiant?? 2.000 USD, and a CARF 3.1m extra?? 3.000 USD, do you really want to do the math with the engines? mufflers/pipes/cannisters??? servos?? Batteries?? etc etc etc..... Plus, the Valiant will fit in almost any car, for the extra you will need a van or a trailer (and I dont think it will be an every day use vehicle so you need an extra car to transport it) and lets imagine pattern will be with 3m airplanes... do you really want to travel to a WC or Continental championship or just an open international with an 3m airplane? how much will that cost???? to prove my point can anybody tell me when and where is the next IMAC WC??? or the next FAI F3M WC??? or just a continental event???? just my opinion
Posted on: 5/6/2011 8:04 AM by Author "tuny" in the forum "RC Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=10504775