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RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: maynardrupp I finally have my OS75AX running good. I am now using a Graupner 13.5''x8 prop. This seems to be smooth,quiet, and pulls good vertical. I really never understood why this engine wasn't making power. I cleaned the carb., eliminated the filter and richened it a little. This engine doesn't seem to respond to needle valve changes with RPM changes like most engines. I also hate the knocking noise that all OS 75AXs seem to make, but OS says that is normal. Now it is powerful. I do have to keep adding support to the flimsy belly. This plane does fly great though. [/quote] Got mine stripped down for the refurb project, and indeed the fragile fuse belly is in pretty bad shape. Amazing the plane was still flying after the tumbles it has endured at my hands, and I'm lucky it didn't end up as a pile of splinters. The encounter with the wind sock pole did a lot more damage than I realized, so the overhaul is occurring just in the nick of time. Wings will be ready soon for recovering and I will post photos, then on to the fuse. The biggest hassle so far has been digging out those pinned and glued hinges. I am going to re-do with CA hinges, but if anyone doubts the security of pinned hinges just try to get these out![>:]
Posted on: 11/20/2009 8:55 AM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9267194
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: racerchuck [size=5][/size]I saw it fly, but I don't know what engine it had in it, I could only tell it was a gasser. It wasn't fast, even as fast as mine with the .90. It seemed to have a constant speed, no matter what position it was in, climbing, diving or in level flight... [/quote] Hmm... perhaps one of those ST 90's modified by BCMA to run on gas?? With equivalent displacement, glow delivers more power than gas, of course with much greater fuel consumption as well.
Posted on: 11/20/2009 8:49 AM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9267181
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: racerchuck ?T?hat ws my thought... I've just joined a new club, and there was one out last Sunday with a gas engine, don't know what size it was. [/quote] Did you see it fly? It would be most interesting to get the details on that one! I checked the TBM website and they list the weight with muffler and ignition as 2.6 lbs (roughly 41.6 oz - check my math). Add another 3 oz for ignition battery and you're looking at close to 45 oz for the engine alone. On this airframe, [i]fergitaboudit![/i][X(]
Posted on: 11/19/2009 1:16 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9264726
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: racerchuck [size=5][/size]I bet the RCS SV 17 would be good, I bet. [/quote] I think I read somewhere it weighs 2.4 lbs... but I don't remember if that includes muffler, ignition and ignition battery. Pretty heavy at for a 7 lb model. But I'd like to see somebody try it, just for curiosity's sake.
Posted on: 11/18/2009 3:13 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9263172
RE: Phoenix Extra 330S 60-90 Size
As you probably can tell, I am partial to OS, but of the engines you mentioned the ST 90 with a pitts muffler would be my pick. No way I would put a gas engine in a plane this small, and in such a lightly built airframe. Some guys considered it earlier in the thread, though I've yet to see anybody actually do it.
Posted on: 11/18/2009 3:11 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9263165
RE: Saito FA180 set-up
No, the pump is extremely easy to install by simply bolting to your engine's backplate with existing backplate screws. Operates by engine oscillation, so no crankcase tapping, etc, and also it uses negative pressure to draw fuel from the tank, so there is no pressurized tank to add to leak problems.
Posted on: 11/14/2009 1:15 PM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9253249
RE: Saito FA180 set-up
Use a [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXDG61&P=ML]Perry VP-20 pump[/link] and an [link=http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXXF25&P=ML]OS Bubbleless clunk[/link] and you will notice an enormous difference.
Posted on: 11/14/2009 11:33 AM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9253098
RE: Different rudder needed on different knife edge directions ?
The engine is mounted with some right thrust, no? Surely not the only ingredient in the aerodynamic soup, but a contributor.
Posted on: 11/14/2009 8:08 AM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9252817
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: maynardrupp I have an OS 75AX in mine and it seems fine. I would like to see somebody install the new OS95AX. That may be the perfect engine for this Extra 330. [/quote] Wow, they come out with new engines faster than I can buy them! Kinda like Tom Clancy novels back in the '90s.[:D] I am tempted to put the .61FX in it with the refurb project, but that engine is already employed and the .91 is just waiting. I think the plane would fly just fine for sport and even basic IMAC with a .61. A clubmate of mine has the .75AX in a warbird and swears it has as much power as the older .91FX.
Posted on: 11/2/2009 8:35 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9223718
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: Indiomike mid$2crash: Thanks for the response. I simply didn't have enough finger pressure to snap the ball into the plastic housing. A little pressure with pliers did the trick. Oops, I made a mistake in the wing alteration. I did mean 3/32 not 3/16. Cheers Mike [/quote] Mike, I doubt they have changed them at all, and I don't think you'd go wrong with the 3/32" TE lift. However, it's easy enough to do after you've test flown without the modification. But I've done 2 of 'em and both were perfect flyers with the mod. I'll start stripping my Extra for the refurb project once I recover from the Focus Sport assembly. Maidened yesterday and was greatly relieved how well it flew considering how crookedly it was manufactured. The YS FZ1.10-S is an impressive engine, with gobs of power even running it very rich. Way too much for the Extra, that's for sure! The OS .91FX is the perfect engine for that![8|]
Posted on: 11/2/2009 4:25 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9223043
RE: Futaba Fasst and servos from diffrent brands?
I have been using FASST and Hitec servos together for a year with no problems. Could have been a lot of things with the big Yak, especially with mulitple servos on one surface.[:o]
Posted on: 11/1/2009 8:11 AM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9219599
RE: Phoenix Extra 330S 60-90 Size
Looks much better, Chuck! Just a tiny bit of work left to finish the Focus Sport so I can maiden tomorrow or Sunday, then I think I will next start the Phoenix Extra Overhaul. I found in the attic the remains of a Great Planes Extra kit that I got from somebody and had been pilfering occasionally for balsa stock and various hardware tidbits, and it suddenly dawned upon me that the ABS cowl and the canopy might work out for my Phoenix rebuild, which would be really handy.
Posted on: 10/30/2009 6:02 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9215904
RE: Extra 260 27% Hangar 9er
I hope the glitch isn't the TX pots. I had this kind of behavior on an older Futaba 6EX in the rudder only, and it turned out to be the rudder pot.
Posted on: 10/30/2009 3:05 PM by Author "cmoulder"
in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9215459
RE: Venus II Carbon Landing gear
Hey, Joe, how is the CF gear holding up? I am wondering because I have yet to see CF gear that lasted very long on gasser or nitro planes. I might need it for my Focus Sport, which I got after the mid-air with my Venus at Black Dirt. I bought it late June right after the tragic demise of the Venus, but just got around to working on it a couple of weeks ago. The stock LG leaves a lot to be desired - to put it mildly - but it is aluminum and will likely stand up better to the YS 1.10 with the Hyde mount. Maidening it tomorrow or Sunday, depending on weather. BTW, the Focus Sport looks nice now and I am hopeful that it will fly well, but it is by a wide margin the most... umm... "issue-riddled" ARF that I have ever assembled![:@]
Posted on: 10/30/2009 2:51 PM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9215418
RE: Extra 260 27% Hangar 9er
Which engine? What is AUW? Glad to hear the radio problems didn't take you out on the maiden![X(]
Posted on: 10/29/2009 7:55 AM by Author "cmoulder"
in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9211748
RE: Phoenix Extra 330S 60-90 Size
How much push required for inverted flight? A symmetrical airfoil with the wing very close to the thrust line should not require much (if any) up or down thrust in the engine. I know I sound like a one-note Sally by now, but try raising the TE 1/8" and see if you're happier with the overall trim. Nothing more annoying than a funky-flyin' plane, and you won't need the spoilerons for landing. There is an older gentleman at my club putting one of these together now, and already I have made some little ply plates for him so that we can do the modification at the field. Takes about 15 minutes, max. Don't know yet if he will agree to maiden before the mod to see the difference, but I'll keep you posted.
Posted on: 10/22/2009 11:54 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9195083
RE: Karbonite gears servo
[quote]ORIGINAL: kobi Hi Bob So you say I understand you do not recommend on Karbonite gears servo, My problem is I can not find in futaba and hitec Manufacturers good nylon gears servo Can you recommend me Which servos I can buy these manufacturers kobi [/quote] Looks as if Hitec has dropped nylon altogether and is going with HB and metal. Any Hitec TG will work, such as [link=http://www.servocity.com/html/hs-7940tg_servo.html]THIS[/link], and I have had good luck with Futaba metal-geared servos, particularly a S9155 which has been the rudder servo on a 50cc gasser for a long time and is still working absolutely perfectly. I have not had good experiences with the HS-5645 and 5625's in precision applications... too much slop. I have used quite a few of the Hitec HS-5955's (discontinued, I think) and they are fantastic. So also perhaps consider something such as [link=http://www.servocity.com/html/s9452.html]THIS[/link], which is in the price range and torque output of the first servo you mentioned above. Also keep in mind some other guys have had good luck with Karbonite, so ask around the guys you fly with to get their opinions. But I think you will not go wrong with the servos above.
Posted on: 10/20/2009 6:07 PM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9188491
RE: Phoenix Extra 330S 60-90 Size
Same here. My fuse has got a bunch of little splints here and there. When I strip it for refurbishing I hope to clean up those areas a bit to get rid of the lumps, bumps, crinkles and creases. But I must say they haven't affected flight qualities one bit.
Posted on: 10/20/2009 3:23 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9188589
RE: Karbonite gears servo
Just one more opinion, based on some experience: When Karbonite gears fail, the teeth shatter and the servos either lock up or the remaining teeth have no bite and therefore no movement. With nylon, the gears usually deform in such a way that you know something is wrong, but the plane is often still flyable... and landable. I had both these scenarios occur on the aileron servos on smaller electric 3D/aerobatic planes (with HS-56HB's, if I recall correctly), so it might be a different story for the larger servos. However, in such an application as yours, I would feel a lot more comfortable with a robust nylon-geared servo or one of the TG (titanium-geared) servos which have much less slop than the MG servos. Sure, the torque is much more than necessary, but in the high-vibration environment of gassers the gears hold up much longer than MG's in the same position.
Posted on: 10/19/2009 11:52 AM by Author "cmoulder"
in the forum "Pattern Flying"
http://www.rcuniverse.com/forum/fb.asp?m=9185193
RE: Extra 260 27% Hangar 9er
[quote]ORIGINAL: tele1974 You guys are funny. [/quote] You're right! It is just SO funny being accused of deliberately misleading when stating an opinion! What a hoot!![:D][:D]
Posted on: 10/17/2009 9:50 AM by Author "cmoulder"
in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9180109
RE: Phoenix Extra 330S 60-90 Size
With the necessarily heavier engine mount, the propulsion package will probably weigh a bit over 2-1/2 lbs. so not only is the engine overkill, but to achieve CG you will have to add weight to the tail unless you can figure out some way to put the Rx battery in the tail section. I have 2 of these engines so I am quite familiar with them and they are just about the heaviest 1.20 4-strokes ever made!![X(] If money were not an issue, I would love to try the 2-cylinder Saito 1.00 in this plane... just for grins. I would very much like to see some photos if anybody has done this!
Posted on: 10/13/2009 3:56 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9170238
RE: Extra 260 27% Hangar 9er
[quote] When it comes to wing loading, all aerobatic planes fly well with a wingloading of 24-30oz/ft...including real scale planes...... If you look at the real scale extra 260 and do the math on wingloading you will find that the extra 27% is actually 25% of the scale bird and it flies more like it than any other out there.... [/quote] You invited me to do the math... This statement sounded fishy, so I did some math, for the full-size Edge 540, similar to the Extra, as found here: http://www.air-races.com/aircraft/Edge%20540.htm These are somewhat rough conversions, but close enough for now... Wing area is 9.87 sq meters. One square meter is 39x39 inches = 1521 sq in... x 9.87 (m/sq) = 15,012 sq in. 1 ft/sq = 144 sq/in, so 15,012/144 = [b]104 sq/ft[/b] Weight (max take-off) is 817 kg... or 817 x 2.2kg/lb = [b]1797 lbs[/b] Wing loading = 1797 [b]LBS [/b]divided by 104 sq/ft =[b] 17.28 [i]POUNDS [/i]PER SQUARE FOOT[/b] Is my math in error??? I'm sure someone will check my math and advise if it's wrong, but perhaps we'd best not compare real planes with our toy planes. I'm not saying anyone is [b]LYING[/b], but it makes one wonder where some people get their numbers. I have heard that people sometimes make stuff up to fit their story line. Where [i]does [/i]one get such numbers??
Posted on: 10/11/2009 1:48 PM by Author "cmoulder"
in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9163940
RE: Extra 260 27% Hangar 9er
[quote]ORIGINAL: Paul_Barsamian I did a search and came up with nothing: Has any one flown this plane light with a Saito 180 in it? I'm looking for a new home for my 180 coming out of the DP Ultimate I lost. The Seagull 180 model sounded pretty heavy at 13lbs for a 180 though my ulti was 12.5 and had plenty of power on 30% heli fuel. Any helpers here? [/quote] Earlier in the thread there were those who flew it with an OS 1.60 (roughly similar HP to the 4-stroke 1.80) and found it somewhat marginal in vertical performance, and it seems the Saito of choice was the 2.20. All my humble opinion, of course, and not meant to stir the emotions of DA50 aficionados the world over.
Posted on: 10/11/2009 1:07 PM by Author "cmoulder"
in the forum "3D Flying!"
http://www.rcuniverse.com/forum/fb.asp?m=9163542
RE: Phoenix Extra 330S 60-90 Size
I'm kinda fed up with Lustrekote because I have used the Insignia blue, true red and yellow (not Cub yellow), and none of them matched their supposedly corresponding Monokote colors. In the ballpark, but definitely not in the same seating section. Best match I have found for red is Oracover true red and Krylon red (I forget the name, but it's got "pepper" in it) which is a dead exact match, even for my wife whose color vision is excellent. I hope the Towerkote red is somewhere near that!
Posted on: 10/11/2009 9:07 AM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9163378
RE: Phoenix Extra 330S 60-90 Size
Probably will do a scheme similar to this...
Posted on: 10/10/2009 10:20 AM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9161450
RE: Phoenix Extra 330S 60-90 Size
Hi, Rick, Still flying my Phx xtra, though it is getting a bit banged up. Last Wed or Thurs I flew it dry and had to deadstick right after exiting a very low flat spin. Decided to plop it in some high, soft weeds on the far side of the runway, but instead flew it right into the windsock PVC pole! There was an awful clatter and it sounded like the plane would be in 147 pieces!![:@] Anyway, the plane knocked down the windsock pole and as I walked around the back of the bush to recover the plane, I was surprised to find there was relatively minor damage to the plane, with somewhat crunched in left wing LE and bent landing gear, and a bit rumpled cowl. Did some quick repairs and was flying again in about 45 minutes![:D] I have the spare cowl for it, so my plan now is to refurbish it over the winter, with a red/silver scheme on top and white underside with my favorite chordwise stripes for orientation. Ordered some of the Towerkote white and red, and Monokote silver since towerkote doesn't come in silver. Painting the cowl with Krylon. Going to install the .91 FX with the Slimline Q-series Pitts muffler. Do you plan to get another Phx xtra?? With all the mods you did, it would be a fine winter project.
Posted on: 10/10/2009 9:04 AM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9161325
RE: Phoenix Extra 330S 60-90 Size
1 knot (nautical mile per hour) = 1.15 mph (statute miles per hour) Goes back to global navigation, where 1 degree = 60 nautical miles, or 69 statute miles.
Posted on: 10/8/2009 9:29 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9157772
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: maynardrupp On the subject of incidence. Mine will maiden tommorrow so I may have more thoughts then. I hate to raise the TE. for this reason. I checked the incidence. With the canopy rail level, the tail is at 0 degrees and the wing is at -1/2 degree, (leading edge low). That goes against anything I ever learned about decalage, (the difference between the incidence of the wing and tail). Zero was always OK for an aerobatic airplane, but all others needed a positive difference between the wing and tail. Oh well, these models defy all logic. Who would ever think of raising the flaps above zero on a real airplane? I will watch closely for the problem tommorrow. My CG is at 120mm. [/quote] As a wise old pattern dude once observed, no matter what else is happening the stab will always find 0 deg all by itself![:D] So if you need down trim for level flight, it tells you that no matter what the canopy rails suggest, the relationship between the wing and the stab is a bit out of whack if you must fly with down trim to maintain level flight. Easiest way to raise the TE is to lay a small piece of 1/8" ply on top of the wing flush with the fuse (with the wings installed in the stock position) and make a little guide mark on the fuse. Remove the wing, ream out the fuse alignment hole on its top side, install the wing with the ply plate WITHOUT GLUE and position the wing TE up according to your guide mark, then spot glue the ply plate with some CA. Remove the wing and put more CA under the ply plate to make it secure. Do the same for the other wing and you're done. The plane will fly perfectly then. Done it twice myself, worked like a champ. Best flying nitro model in the hangar.
Posted on: 10/4/2009 8:57 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9146710
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: unfmoose Looks like I have some work to do! So by the picture, you just put a piece of balsa on the inside to raise the bolt hole? Thats easy enough. [/quote] Lite ply, actually, but it is very easy to do. Done it twice with excellent results.
Posted on: 10/4/2009 8:35 PM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9146644
RE: Phoenix Extra 330S 60-90 Size
[quote]ORIGINAL: unfmoose Also, did anyone else notice the 120mm CG point was really tail heavy? Mine seemed wayyyy tail heavy, so I took weight off til it flew right. I will put it on my balancer and see where it is sitting now. Also, my little sonic 25 was way tail heavy at the recommended CG. I also read that the phoenix decathalon CG is way off. Could this be a theme with Phoenix models or am I the onyl one who thought it was tail heavy at 120mm? [/quote] Are you flying with a lot of down elevator trim? I hate to keep kicking the dead skunk, but the problem with this model is the wing incidence. The AOA is too much and so it seems very "floaty" on landings because the nose pitches up. Raise the wing TE 1/8" and it will fly perfectly with CG at 120-125mm. Some photos of how I did mine [link=http://www.rcuniverse.com/forum/fb.asp?m=6743930]here[/link].
Posted on: 10/4/2009 7:43 AM by Author "cmoulder"
in the forum "ARF or RTF"
http://www.rcuniverse.com/forum/fb.asp?m=9145206
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