RE: Jetjoe 3000 turbine
[quote]ORIGINAL: BJ64 and BTW AnyAndrews...good to see that I keep you so fixated as to quote my every word. BJ:) [/quote] Actually BJ, I find your experiences on how to keep your new JJ3000 running quite facinating. Also I'm curious, why won't the JJ solenoid valves work? I don't think I would recommend telling new users to bypass them to get it started.
Posted on: 11/20/2009 11:48 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9267567

RE: Jetjoe 3000 turbine
And just because you enjoyed going through all of these masochistic tribulations you recommend others to do the same? Thats not good advice in my opinion.
Posted on: 11/20/2009 11:33 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9267541

RE: Jetjoe 3000 turbine
I wouldn't exactly call this a glowing review on a new JJ3000. You did say you never buy used turbines right? Who wants all of these problems out of the box? Out of the 8 turbines I have owned, only one has given me the problems shown below. It was a used RAM 1000 that I bought when I first got into the hobby. Had I been warned I would have NEVER bought it in the first place. I have never had to deal with the problems you list below with my Jet Central or Jetcat turbines. This forum constantly warns people about JJ turbines for a reason. So, LOL, is your idea of a perfectly running turbine? - From BJ: [color=#FF0033]I had similar problems with start-ups on my JJ3000.[/color] First and foremost, like others have suggested, is to make absolutely sure that your RPM sensor wire does not pick up any electrical interference from anything else. [color=#FF0033]Carefully twitch the wires together all the way back to the FADEC. In fact, I twitched ALL my high-current (thick) wires together.[/color] Next thing I did is I mounted all my gear along a line on the opposite side of the Turbine to where the RPM sensor goes into the Turbine (looking at it with the compressor end facing me, Turbine end facing away). The RPM sensor wires and EGT (exhaust thermocouple) are on the right hand side - so I mounted everything else on the left hand side. Most Turbine FADECS use two basic things to tell it what the engine is doing - RPM, and EGT (exhaust gas temperature). If either of these signals it not reliable, the FADEC will go nuts. [color=#FF0033]A common problem with JJ Turbines is the RPM sensor picking up stray electrical signals, or 'spikes'[/color] - you'll usually see these on your 'Monitor' during start-up, as the RPM will seem to be jumping all around the place, even if the engine 'sounds' like it's more or less holding the same RPM. Twisting the RPM sensor wires together so they look a bit like a rope helps them to stop working like an 'antenna' and picking up stray pulses. [color=#FF0033]The JJ solenoids can also leave a bit to be desired[/color] - [color=#FF0033]my Propane solenoid wouldn't shut off. In the end, I bypassed both solenoids so that I run Propane straight from the can, and Kero straight from the bottle[/color]. The Propane is easy enough to control with the supplied valve that fits on the can. I don't open mine until my Monitor says 'Glow Test'. You don’t really want the Turbine filling up with gas before the glow-plug starts up – blue flames everywhere if you do that. And you don't need to open the manual gas valve up all the way either - it's a bit like a gas cigarette lighter - turn it up too high, and the lighter won't light - but you can still hear the gas. I also have a beefy 20-amp ‘kill switch’ between the battery and the FADEC. That way, if anything does go wrong, I can turn off the Propane using the gas valve, and kill the electric power to the unit – no pump = no fuel. And it all just stops. Oh, and do have a good fire extinguisher handy – just in case. CO2 is best, if you can get one. I don't know what fuel-pump you got with your JJ, but mine has 'JetJoe' written on it (a newer variety?). [color=#FF0033]A tip I got was to make a closed loop, and let the fuel pump run a couple of times for 5 to 10 mins at a time.[/color] By 'closed loop', I mean grab a source of Kero - feed it into the inlet of the pump (there should be arrows telling you which pipe is 'in' and which one is 'out'), and feed the hose from the outlet back into the fuel source (can, bottle - whatever you're using). [color=#FF0033]That should 'bed' the fuel pump in nicely[/color]. By using a ‘closed loop’, the fuel pump will pump fuel just as it would if you were firing the Turbine. But don’t ever run the fuel-pump ‘dry’ (without fuel going through it) – quick way to burn it out. [color=#FF0033]My Turbine 'weeped' a bit around the glow-plug recess. Particularly on start-up, but seemed to go away once the Turbine was running. I carefully pulled the plug out, checked that it had a base washer, then put it back in again and re-tightened it. I ain't perfect yet, but a hell of a lot better. [/color] If you've got white smoke or fuel pissing out everywhere during start-up, I'd suggest that there's something really wrong. Either a leak somewhere, or it's ramping onto Kero way too soon. The reason you use Propane during start-up is to get the internals of the Turbine nice and hot - Kero needs to vaporize before it will ignite properly. Shunting Kero into the engine too early can cause the Kero to try to ignite before the combustion chamber is hot enough to do the job properly (vaporize, then burn). Could be blocked injector 'sticks' too, but I'd reckon it wouldn't smoke at all if Kero wasn't getting through. I would think it would more likely want to sit there burning Propane forever while it waited for the RPM and temp to increase, eventually telling the FADEC that it was running properly on Kero. Sounds like it’s not getting that far (??). Hope you get it started. Post your results, huh? _____________________________ Any day above ground is a good day - Think...
Posted on: 11/20/2009 11:06 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9267485

RE: Skymaster F-16 rudder flutter fix
I don't like the idea of "tape" as a perm. solution to anything. If anyone wants pics of the mod which is a permenant solution, I will be happy to post them.
Posted on: 11/20/2009 10:38 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9267427

RE: BEST JET FORUMS
[quote]ORIGINAL: Eric D RCU is the most informative. Just don't mention it here if you bought a Jet Joe turbine. You will be considered to have resorted to the lowest form of debauchery by some. [/quote] Only because so many people have been stung buy them. Its a natural consequence.
Posted on: 11/20/2009 10:36 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9267422

RE: Jetjoe 3000 turbine
[quote]ORIGINAL: 76Phantom OK, Guys, I have had 2 Jetjoe turbines and the both run just great. I presently own a jj14, Jetcat p70 and a Wren 44. I have owned a Wren 54 as well. The wren 44 gold that I presently own has been nothing but a head ach from the get go. Now I'm not bashing Wren, I'm just stating that you can buy any turbine out on the market today an get a bad one for what ever reason. My Jetcat has had two issues, First right from the get go the ECU failed and Had to send it back. Second, had a bearing issue and had to send it back again. Once replace it has had no further issue. It is currently in my A-4. My jj14 that I purchased used was abused but ran OK. Sent it back in to have the take a look at it. They replaced just about everything for next to nothing. Ever since then I have flow about 50 flights on without any problems what's so ever. I would gladly purchase any JJ turbine out there today. So my point being is that you could get a problem child in any product you purchase today. In fact I'm in the process of purchasing a JJ300 for my JetLegend F18. [/quote] Do you have any pics of your JJ installation? I'm curious what they look like installed.
Posted on: 11/19/2009 10:07 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9265399

RE: AWESOME FEJ F-100
How about Davids? I would like to see more. Maverik gear problems?
Posted on: 11/19/2009 10:06 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9266489

RE: Skymaster F-16 rudder flutter fix
[quote]ORIGINAL: Jack Diaz I have given a lot of thought to the modification suggested for the rudder linkage in the SM F-16 1/6, to prevent rudder flutter. I am not convinced that the placement of the rudder servo in the fin is an optimal solution. I think that such set up has more negative than positive consequences: Negative: -Looks ugly !!!!!! -The force applied to the servo is asymmetric with respect to the servo output shaft. The original SM system (pull-pull) is symmetric, i.e. less play. -The structural integrity of the horn/glue/rudder system is by far weaker than the steel rod imbedded in the bottom of the rudder. -There is no torque or force gain at all. By the contrary, the original system allows to connect the rods closer to the servo output shaft; thus, reducing play. -Heavy duty ball links can not be used. Positive: -No play in the rudder horn/link contact. In the original SM system there is some play between the torque rod head and the rudder rod bar. This has probably been the cause of flutter. So, installing the servo in the fin is not giving any mechanical advantage, but is aimed to eliminate the play generated in the contact between the rudder rod and the torque head. What I did was to focus on eliminating this play without the negative consequences. I have logged 25 flights, with ''no mercy'' regarding top speed, and have not had any sign of flutter (I am using 38 pounds of thrust). Here is what I did: -Make sure the torque head is oriented so that the deeper part of the slot faces fwd. (this is an easy mistake, and could cause the rod to disconnect from the torque head at full deflection if placed backwards). -Wrap a 1/4'' by 1/4'' piece of aluminum tape around the rudder steel torque rod. -''Force'' the fin-rudder assy over the torque head.... absolutely no play at all !!! - I use a JR 8611 servo without the rubber grummets. Rods are connected to the innermost hole of the servo arm, and I use HD ball links on the torque arm. Rudder has absolutely no play at all now. Hope you guys find these tips useful Regards Jack [/quote] Absolutely no play on "the mod" either. It's rock solid. Ask anyone who has seen me fly my F16. Andy
Posted on: 11/19/2009 7:56 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9266148

RE: How Stupid Is....
[quote]ORIGINAL: YellowAircraft [quote]ORIGINAL: rcjetsaok The F-22 program has been cancelled thanks to you know who.... Danno [/quote] You mean Senator John McCain and Defense Secretary Gates, right? Good call on their parts. The Raptor program was a Turkey from start to finish. Read the Defense Secretary's report on the matter. It's a cool airplane, but $370M per copy was an outrageous cost given its MANY and SERIOUS deficiencies.... Look, how 'bout we keep the political stuff off of here? This isn't the place.... [/quote] Its all going to UAV's. This is the reason its getting axed IMO.
Posted on: 11/19/2009 7:24 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9266071

RE: What kind of turbine is this? Popcorn ready,ha
[quote]ORIGINAL: Nightwalker [:D] I see the fan in there Andy, but where's the turbine man? It's all about the turbine! [:D] [;)] hey mines got a ..fan in it... lol.[sm=75_75.gif] [/quote]
Posted on: 11/18/2009 11:15 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9264234

RE: What kind of turbine is this? Popcorn ready,ha
This one is pretty funny: [youtube]http://www.youtube.com/watch?v=VXyZiCJN650&feature=related[/youtube]
Posted on: 11/18/2009 11:02 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9264211

RE: TamJets A-4 problem tucking issue
[quote]ORIGINAL: yeahbaby move the CG back amigo. i've got barely 9 oz up front [quote]ORIGINAL: AndyAndrews Almost sounds like you are discribing the flight charateristics of the F4 too. Mine likes to tuck on turns. [/quote] [/quote] I'll try that, Thanks buddy.
Posted on: 11/18/2009 7:43 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9263890

RE: Jetjoe 3000 turbine
[quote]ORIGINAL: 2walla How many of you drive fords? They buy one of every major manufacturers production car each model year, and run it to death on their torture track. They pick and choose the things they like and incorporate into their designs. You guys need to let it go... [/quote] what good is a cheap car if it doesn't run? I've got a turbine shaped cardboard box. wanna buy it? I can make it fit in your jet. You may need to tinker with it a little though. Here, I'll sell you some parts to make it work. Call me if not and I'll sell you some more. Hey this is a pretty good business. Anyone want to invest in it? I'll call it the "totally alternative turbine" The TAT. I'll sell a million. There are always FOOLS out there willing to buy crap so why not?
Posted on: 11/18/2009 6:32 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9263687

RE: What kind of turbine is this? Popcorn ready,ha
[quote]ORIGINAL: Nightwalker [quote]ORIGINAL: AndyAndrews Thanks nightwalker. I have now viewed the most retarded video I have ever seen on Utube. I can't believe those dudes actually wasted their day by doing that. Well, I waste a lot of my day posting here so I guess I shouldn't be surprised. [/quote] It's all entertainment Andy, and people think we are bad with model jets. [:D
Posted on: 11/18/2009 5:40 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9263560

RE: Dreamworks New Product Announcement
nm.... $230 for the balancer is too expensive.
Posted on: 11/18/2009 5:33 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9263538

RE: What kind of turbine is this? Popcorn ready,ha
Thanks nightwalker. I have now viewed the most retarded video I have ever seen on Utube. I can't believe those dudes actually wasted their day by doing that. Well, I waste a lot of my day posting here so I guess I shouldn't be surprised.
Posted on: 11/18/2009 3:44 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9263239

RE: TamJets A-4 problem tucking issue
Almost sounds like you are discribing the flight charateristics of the F4 too. Mine likes to tuck on turns.
Posted on: 11/18/2009 2:34 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9263076

RE: What kind of turbine is this? Popcorn ready,ha
[quote]ORIGINAL: yeahbaby Classic [quote]ORIGINAL: InboundLZ Actually, there is a guy at the Sky Master factory that can't find his lunch.... [/quote] [/quote] Bob Covish better check his jets again... stashing things in peoples jets has gone to a whole new level.
Posted on: 11/18/2009 9:26 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9262481

RE: What kind of turbine is this? Popcorn ready,ha
I know what you are up to. Your trying to sub consciously elicit your wife into becoming a member of the mile high club, buy putting forth subliminal messages.
Posted on: 11/18/2009 9:22 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9262476

RE: Global Jet Racks - New Release
[quote]ORIGINAL: mikedenilin Hi All, Thank you for the suggestion. The price includes shipping. I will try to find ways to reduce the shipping cost and over all costs. Hi Raffy and Dave 1. Like Dave said above, making a way so that the jets can sit on their fuse would be nice, especially if the wingspan is so big that the wings have to be taken off the model - this is good suggestion. will work on some ideas. 2. Make the rail that the mains sit on wide enought so that some ''wide'' stanced jets can go on them like a Bandit, Ultra bandit or even an F-4 phantom. - at this moment, it will fit our JL F-4 and MIG 15, pretty wide. I put soft surf racks on the ends of my rack so I could rest the jets on the rack with the gear tucked up. I don't have any pics right now, I'll see if I can take some when I get home. That will be great. Mike [/quote] Offer them in a KD (knocked Down) version and shipping will be cut in half. Same with cost to manufacture.
Posted on: 11/17/2009 10:04 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9261626

RE: AIRWORLD L-39 FACE LIFT
It looks like real metal. Nice.
Posted on: 11/17/2009 5:45 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9260898

RE: Avonds F-16 Maiden
Congrats! She looks great. Fine lookin boy you got there to. Congrats.
Posted on: 11/17/2009 1:43 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9260367

RE: Flycamone vid inside F16 cockpit...not the best but.. kinda interesting
Shipping it back to him today. Only had 10 flights on it since rebuild. Yep we are in a battery intensive hobby for sure. Andy
Posted on: 11/17/2009 1:30 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9260347

RE: Hows Global Jet Club plane's quality?
Good to hear. I want one of their Mirages. Andy
Posted on: 11/17/2009 11:04 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9260064

RE: FEJ-WHERE WE'RE GOIN TOMORROW! If I told you you wouldn't believe it!!!
Hes cool man. ice cool. I would buy that F15 if I had the jack right now. You catch my drift?
Posted on: 11/16/2009 10:11 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9259130

Flycamone vid inside F16 cockpit...not the best but.. kinda interesting
I was flying my Skymaster 1/6th F-16 with the Flycam inside the cockpit this past Sunday. The cam ran out of batteries mid flight or so - sorry about that. Also on the very next flight my Rhino blew a bearing mid flight. Had to deadstick the bird in. This was my FIRST semi scale warbird deadstick. Thank goodness it happened on the downwind at full throttle instead of at takeoff. Had plenty of speed to land without any problems. Of course Zero room for error. I wish the cam wouldn't have died or I would have had a video of the deadstick. Rats... I had turned it on for that flight but it died before takeoff because there was no vid of that flight at all. Upon inspection it looks like it tried to spit out a bearing. The inner tailcone was penitrated and a bearing is rattling around inside. One actually got out! The damage wasn't caused by FOD. I always use a FOD screen. Sending back to Jet Central. Eric will take care of it. Once I get another turbine in the jet I will make another recording. I think I know how to position the cam better now that I have seen this. I have a spare Rhino on the shelf. I might stick it in and fly again this weekend. [youtube]http://www.youtube.com/watch?v=cEF2HjN6u7E[/youtube]
Posted on: 11/16/2009 10:01 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9259101

RE: Airpower EV-5U-A problems
I don't know if this is the same issue as the FEJ 5in1 valve but these guys won't work under 6 volts. Andy
Posted on: 11/16/2009 5:09 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9258371

RE: Dutch F-16 maiden with on-board video
Congrats David!. Nice vid buddy. My 1/6 F-16 goes stealth real easy (even with orange stripes). I love your field really nice. I noticed an extention on the runway. Both of my F-16's like a lot of expo on the elevator. I think I am going to give them a little more throw on the alerons for snappier roles. Congrats again.
Posted on: 11/15/2009 11:05 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9255107

RE: Mig 21 goes the Netherlands
Wow, I never noticed door cylinders that look so similar to the ones we use. I gues these are hydrolic verses pneumatic? Maybe they bought them from FEJ.
Posted on: 11/15/2009 10:57 AM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9255092

Cactus 1549
Have you guys seen this? Incredible documentation of the event. http://www.exosphere3d.com/pubwww/pages/project_gallery/cactus_1549_hudson_river.html "A challenging question arose during preparation of this animation: whether or not to include flames and trails of smoke from the engines. Brief review of the superficial data led us to conclude that there were flames on both engines; some passengers on both the left and right sides reported seeing anything from "flames" to a "fireball and black smoke". The passenger seated in 15F even described feeling heat from the fire on the right side of the aircraft! Many remembered a visible smoke or haze in the cabin and almost all persons onboard recalled a smell of smoke or fire."
Posted on: 11/14/2009 9:00 PM by Author "AndyAndrews" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9254128