RE: TamJets A-4 problem tucking issue
[quote]ORIGINAL: 76Phantom Thanks you guys. I have flown many A-4's in the past an they are nothing like this one. In the final apporach it makes for faster landing speeds because I really cannot slow it down before the last turn for the landing even with crow and full flaps down. [/quote] I've flown a few different Tam A-4's and own one myself. The A-4's I've flown fly sweet as butter but like everyone says the turn to final and such should be a gradual turn, maybe 30 degrees of bank, and in a descent towards the runway like you'd see in full scale. Do you have crow mixed in with your ailerons? Are you sure your A-4 is just 20 pounds? The CG position, crow setup and weight are the big three on initial thoughts. Also, re-check that your lateral balance - side to side - is reasonable and you don't have an undetected heavy side that you are making up for with aileron and then getting a snap stall as a result of the lowered aileron at high angles of attack. Best of luck in getting your A-4 all settled in and flying the way you like. When it's all dialed in it's sweet!
Posted on: 11/20/2009 10:34 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9267419

RE: Fuel tank venting
The flag idea, combined with the taxi tank "ritual", helps for me. I once took off with the vent plug installed before I began using a taxi tank and before using a flag, after having a last minute issue that required a delayed takeoff and a small maintenance action. Saw it on the liftoff - a short pattern and overweight landing made, and a lesson learned the easy way for me thanks to luck. It's that sort of disruption to routine that opens the door. The challenge with using a printed checklist (for me) is multi-layered - first, it's a separate piece of paper that requires a place, and second, the chance of misplacing it in the typical RC outdoor environment (winds blow it away, etc.), and finally the temptation to make an obnoxiously long checklist in the first place that covers the bathroom break, call to the wife, what have you. Maybe a better solution would be to memorize a short mnemonic checklist like glider pilots use in small single pilot cockpits of simple aircraft - RUFSTAL for example for the landing checklist - Radio set and initial call made, Undercarriage down and locked, Flaps set, Speedbrake checked and set... and so on. There is a separate one for takeoff. We really only need one for takeoff but it would not hurt to make a simple one up for landing. That way it stays short and sweet and there is no overly complicated list that is a setup for misuse or confusion. Just an idea and example thrown out, etc.. I'll just make one up on the fly to see if it could work for some guys - "RUFFFSTAL" - (R) Radio (Proper model selected and battery checked for both TX and RX before flight), (U) Undercarriage (pressurized and swung, brakes charged and checked), (F) Flight Controls (Physical check and function, right throws, rates, direction...), (F) Fuel system (full tank, no bubbles, no PLUGS), (F) Fire awareness (engine start, extinguishers, spotter plan to use the extinguisher), (S) Situation Awareness (Who's flying where, what station box to take, who's your spotter, are the conditions still good to fly, review flight plan / desired actions), (T) Trims and flight modes set for takeoff, (A) Announce runway/takeoff, (L) Look (before entering runway, before turning into anyone in flight, before making a low pass, etc.). As long as you remember the RUFFFSTAL you'll remember your items and you can do the checklist while in motion and with hands full. The "RUFFFSTAL" is not important, just that a short and sweet custom checklist is come up with to hit the big points, and regularly practiced. Maybe just attach a very small piece of paper with your letters on it to the TX and look at it if you get short on brain capacity, and you'll pick up from there.
Posted on: 11/19/2009 10:54 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9265014

RE: *** SIN CITY JETS '09 November 5-8 ***
I have to agree on the flight ticket idea, great move!
Posted on: 11/2/2009 10:55 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9224025

RE: Halloween Jet Flyers @ SVF
Come on! I was hoping to see one of you's dressed up like Dracula or a 70's Disco Star! Now that would be a Halloween day at SVF! [:D] Nice pics UJ!
Posted on: 11/1/2009 10:31 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9219849

RE: Aftermath of SVF rally
Wow, what a difference Joe, you guys have the place to yourselves! I got the debrief from Gregg, what a class act event you guys put on. Well done!
Posted on: 10/26/2009 12:39 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9203211

RE: F-84G
Oliver, next time I pass through Dubai (very rare for me) I've got to figure out a way to pay a visit to you! This is great work as usual, up to your standards of course. Can't wait to see the 262.
Posted on: 10/23/2009 8:44 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9197127

RE: Check Out These Clowns With Pulse Jets
[quote]ORIGINAL: s3nfo Considerably closer to maybe 3/4 of a G than it was to 3 G's. [/quote] Well, OK, it's simple math - 70 degrees is 3.4 G's, 80 degrees is 5.7 G's, 85 deg. is 9G, and 90 degrees is not sustainable in purely coordinated flight (no knife edge component) so your guess is, I imagine based on this video, good as mine! I didn't get out an inclinometer and pause the vid, I suppose I had (and continue to have) a life to live [:D] All said in good fun of course.
Posted on: 10/3/2009 12:04 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9143462

RE: For all you
Many thanks! Bookmarked!
Posted on: 10/3/2009 11:55 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9143435

RE: Check Out These Clowns With Pulse Jets
[quote]ORIGINAL: scale dail I thought they were going to go a lot faster than that! Maybe a couple Jetcats would do better! [/quote] Yeah, didn't look that fast to me either but if you look at their "bank angle" they were at about 70 degrees - that's 3 G's. I bet it seemed a lot faster to the Darwin boys on the contraption than to us! As far as Darwin boys go, the guy manning the "Goat Rope-Go Round 3000" in the middle was in serious hazard too, did you see the center wobbling? This has to be the silliest a$$ thing I've ever seen done intentionally [:D]
Posted on: 10/3/2009 7:32 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9142984

RE: Reno Air Races 2009, Jets
Glad the vid was fun to watch fellas [:D] I know there are way more talented guys here on RCU so I'm just a hack, but I'm really loving the learning process. As Uncle Joe knows too I've made a couple flicks previously about the glider club I fly with. I suppose a lot of guys here on RCU have inspired me to try this stuff out, thanks guys! Gordon is right, the T tail jets are L-29's. The "mostly" stock L-29's are "Delphins" and the black L-29 is a "Viper". The Viper has a big engine, a faired nose cone and a few small little aerodynamic touches. The Viper is faster than any stock L-39 in the race course especially as it has a lighter wing loading and holds it's speed under G loading well like a stock L-29 but that bigger engine puts it over the top on speed. A friend of mine owned a -29 for a few years. Bought it for 40 grand, but every time he flew it it cost him 1000 bucks to just climb to altitude! The music was Eric Johnson "Righteous" for the first guitar tune, then Collective Soul with "Better Now" and "Hollywood".
Posted on: 9/21/2009 11:57 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9114223

Reno Air Races 2009, Jets
I know I was one of the few west coasties that missed Fresno Jets this year ( aaaaahhhh!) But I did have a good couple excuses, if there ever are any for this sort of thing. 1 -Reno Air Races during the week and weekend, there was that conflict; many friends in the business were in town, going, etc. 2 -a couple other lifetime events going on that had the weekend toast So for those of you who enjoyed Fresno, good on ya, wish I could have done the same. But for those who wanted to also go to the races but didn't, here is a short video I compiled on the jet action and the Blue Angels at Reno this year. Youtube can be slow at times for big files (like this), you might have to pause it if it hangs up and play after a delay depending on your connection. http://www.youtube.com/watch?v=8bQJr_7Hx2g&feature=player_profilepage
Posted on: 9/21/2009 4:39 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9112969

RE: Al's Hobbies Mach 1 Jet
Ali, if I may, I have to agree with your choice of the Hawker Sea Hawk in the Suez Canal ID markings!! Looks super sharp, the canopy was the first thing that sold me on the jet to be honest because it was a departure from the typical sport jet and opened the door to more fantasy scale schemes. (I saw Scimitar or Century Series jet - just the canopy for century series but it sorta got me thinking about many ways to go with the jet) - and you are right, we all "see" something different in sports jets. This one passes well for 50 to 60's transitional time frames, and there are a million attractive paint schemes that will adapt well to this type of time frame. (After all I'm the guy who fashioned my R54 after the Sea Hawk, too). Really sharp!!
Posted on: 9/14/2009 12:41 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9093776

RE: • CA Jets V •
Dude it's on my birthday! Sweet! free beer for me, right guys [;)] Nice logo man!
Posted on: 9/14/2009 12:15 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9093731

RE: Mig 21 duals with Hawk No Crusaders found
The Red Tailed Hawk is my favorite! Don't mess with her!!
Posted on: 8/25/2009 9:09 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9045030

RE: Reaction 54 Jet Kit
Ohhh, I have a Wren Supersport as well but I wish I could say the same thing about a Cris Craft Supersport!! My wife and I love the classic wooden boats, we live by a large population of "woodies" that are based at Lake Tahoe. Since we have young kids we have limited ourselves to gelcoat and wax finishes (boo hoo!) for our boat. Maybe some day I'll have some mahogany but I'll bet they will be out of my leauge by then like P-51's and P-40's became to regular Joe's in the 70's and 80's. The boat in my (other) avatar is a classic Reva at The Thunderbird Stonehouse in Tahoe. Not mine, but a cool shot!
Posted on: 8/25/2009 12:04 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9042535

RE: Reaction 54 Jet Kit
[quote]ORIGINAL: ww2birds R54 gang, I just had a nice conversation with Bruce to get one of the new kits. Curious if one of the folks here who has done the ''add intakes (and maybe cockpit on top of hatch)'' mod would be willing to share sketches/drawings/advice. I love my existing stock R54 so much, I'd like to do another that's more ''duded up'' :-) Dave [/quote] Hi Dave, here is my build thread for the R54 inlet add on, cockpit and pilot conversion, as well as many other little things like breaks, struts, fairings, etc. http://www.rcgroups.com/forums/showthread.php?t=696489 All the best to you for your build!
Posted on: 8/24/2009 5:34 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9041326

RE: Reaction 54 Jet Kit
I've had JR servos fail badly too! I have jets with JR and Hitec. You just have to go with what works for ya. And be vigilant when a servo starts acting up - even slightly. Change it out if you ever get to that point with no questions asked. Again, great job on the paint. New paint is a new jet! (Assuming the insides are good ;) )
Posted on: 8/23/2009 3:38 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9038162

RE: Bruce Hanson in serious car accident yesterday
Get well soon BH!
Posted on: 8/20/2009 9:25 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9032267

RE: Twin TJ100 J/L F-18C EDF maiden flight video
I can't wait to see the Hawk, too [:D] Ever since I saw the basic setup at Cal Jets I've been wondering when it's gonna fly! Russ, compared to a turbine C model, what were your initial thoughts on the JL EDF?
Posted on: 8/18/2009 1:36 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9025677

RE: F-84G
Oliver you keep getting better and better at this, if that's possible! Excellent work, museum quality and better than that as this is operational and you are the type to fly it!
Posted on: 8/18/2009 2:26 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9024796

RE: Twin TJ100 J/L F-18C EDF maiden flight video
Tam I always liked that demo paint scheme on the F-18. Well done, I can't wait to see it in person sometime soon. You should get a picture of all your big EDF's together (assuming you haven't sold all the other ones yet). It would be nice to see the size comparisons of the TJ-100 fleet.
Posted on: 8/17/2009 8:20 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9023979

RE: Reaction 54 Jet Kit
The jet looks great!
Posted on: 8/15/2009 5:00 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9018703

RE: Update on A123 Use and Care
Thanks Chad for the note on the 123's. I noticed last season I started getting a "Safety Charge" message from my CellPro chager on my ECU pack, every so often. I haven't flown this pack in a couple months due to dry and windy conditions but I'll try that as turbine flying season is just about here agin for me.
Posted on: 8/15/2009 4:58 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9018697

RE: Compressor wheel heat
These model jet engines use low pressure single centrifugal compressor wheels or rotors - the front of the rotor we can see looks like an EDF rotor. It is only a small part of the rotor. Behind that, the rotor expands to a larger diameter and is the portion where most of the compression happens as the air channels direct centrifugal sling/squeezing of the air. That part of the rotor the air will get hot as it is compressed. The front of the compressor rotor is probably relatively cool, and the aft portion where the compression is probably a lot cooler than the air around it, due to the front part of the wheel keeping that hot portion relatively stabilized in temp. I bet the "air" temp before the combustion chamber is about 200C ( still cool air, and I'm guessing a little). I bet the wheel/rotor itself doesn't see over 100C. In a full size jet engine with multiple compressor stages and high compression ratios, cool air flow before the combustion chamber can get to 400 degree C (not guessing, measured, depending on the engine design), and it hasn't even seen burning fuel yet. Most quality model jet engine compressor wheels are pretty rugged. But FOD is pretty destructive, and undetected cracks can let go. But I think it's more along the lines of what Digitech talks about.
Posted on: 8/12/2009 10:57 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9010304

RE: So I guess you need 2 fire extinguishers??
[quote]ORIGINAL: Flyin Beagle What is the problem with an ABC fire extinguisher??? [/quote] Nothing, assuming you are talking about putting a grass/debris fire out, other than it is not at all in compliance with the Turbine regs for AMA if that's the only extinguisher you've got for a class A. Water, specifically per AMA, for the field, and whatever else you want to supplement the reg requirement... and anything you want for engine starts (CO2/Halon for 99 percent of folks). Heck, you could put a fire out with ice cream if that's what someone wants to use as long as you also have a water ext. on the field to comply with the reg. It would be a nice conversation starter and on hot days you'd have a few friends, but not much ice cream after a while.
Posted on: 8/12/2009 1:22 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9009584

RE: So I guess you need 2 fire extinguishers??
I watched the video, it looks like the first fire extinguisher failed at the valve, it was spraying all over the place, forward and aft, and did not look to deliver properly due to that. You need 1-fuel, 2-heat and 3-oxygen for a fire. CO2 removes the oxygen. In a fully developed fire with solids and heat remaining in the solids, you need to cool it down too, or as soon as the o2 is back, the fire hot spot ignites again as all three fire ingredients are present again to support combustion. CO2 works great for what it is intended for, a B/C fire, not for an A class solid fire. I carry a pressurized water extinguisher, a 10 pound CO2 extinguisher, and a 5 pound Halon extinguisher. I agree with the guys above, you can't have too much when you have a fire going.
Posted on: 8/11/2009 1:33 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9007824

RE: So I guess you need 2 fire extinguishers??
http://www.modelaircraft.org/files/510-a.pdf Page 2, item 16. Look at it from the source document, don't just take my word for it as written below: 1) Water extinguisher present at field 2) One B/C or Equivalent extinguisher for engine starts Nowhere does it say chemical is effective, nor does it say CO2 is ineffective. The Water extinguisher is a way to say an extinguisher that is capable of putting out solid class A fires, like grass or structures. I would NOT ever use chemical on my jet, unless it's in pieces on the ground and then it would be second choice to water. CO2 will work for a hot start and a fuel fire but it's known to be an excellent B/C agent that does not work "great" for an A class fire, like simple water does. [quote]ORIGINAL: check6ii In viewing this video, it appears that the spray from the extinguisher is spraying everywhere except where the fire is.........i [/quote] As Check says, proper USE is just as important and having an extinguisher, or one of the proper type.
Posted on: 8/11/2009 1:19 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9007791

RE: JetCat RPM surging, popping, flameout if accel too hard
[quote]ORIGINAL: KC36330 A123 is a [b]Hardware[/b] mod, Bob may have cut you some slack with the SE upgrade but it's not the case if you send in your ECU for a firmware upgarde. [/quote] Yeah, I'm not debating that to safely run the A123's over the long term there is in fact a hardware mod involved, thank you for clarifying for anyone out there that is looking to do this as there is a distinction. But there may be a package deal for that and 6.0 - I'm not really sure how they are doing it today from a customer and payment perspective, that's how it seemed to be last year. Best just to call Bob or anyone else at JC and get the skinny, as of today, for anyone interested. The turnaround times vary depending on what's in line ahead of any new invoices also - seems to me after big shows in the summer the line can get long.
Posted on: 8/11/2009 1:07 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9007760

RE: JetCat RPM surging, popping, flameout if accel too hard
[quote]ORIGINAL: KC36330 [quote]ORIGINAL: Eddie P .................You can send in your ECU only for just a 6.0 firmware upgrade for something like 25 bucks, that will get you the ability to use A123's [/quote] the firmware upgrade does not allow for A123 operation, it's an additional hardware mod at an additional cost. [/quote] Not according to my invoice it isn't. It was done
Posted on: 8/11/2009 12:15 PM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9007637

RE: JetCat RPM surging, popping, flameout if accel too hard
Two year old fuel, two different engines suddenly doing the same thing... Probably the fuel. Remember, the Wrens like 3 percent oil (prevents buildup in tight tolerances I believe) but the Jetcats do in fact need 5 percent, I only mention that if you are fueling from the same fuel source to both. I run both Wren and Jetcat also. And yes, 5.0 ECU is not east at first to figure out the values. You can send in your ECU only for just a 6.0 firmware upgrade for something like 25 bucks, that will get you the ability to use A123's and simplify some other operating options too.
Posted on: 8/11/2009 11:52 AM by Author "Eddie P" in the forum "RC Jets"
http://www.rcuniverse.com/forum/fb.asp?m=9007566