RE: Showtime
 

I just ordered my Showtime and it should be here next week. I also just got a YS 110 FZ to go in it. I got a pitts-style muffler on it and I'm concerned that it may not fit -- is anybody running one of these with the YS110 and a pitts muffler? Any pics of a YS110 install would also help out.

RE: Showtime
 

Does anybody think the new zenoah g20 will fit in it? Will the weight of the engine effect the performance much?

RE: Showtime
 

isaacslaw ... I planned to install my YS110 and slimline pitts....... But it wouldn't fit
without mods so I went ahead and used the stock muffler. With the YS all the way
forward on the stock mount, my set up needed about 1/4" more room with the YS
inverted.. It may have worked side mounted, but after 7-9mos in the box I was a
bit in a hurry to fly her....

RE: Showtime
 

Just maidened mine this weekend. What an amazing plane!

Snaps and spins are crazy on low rates and insane on high rates. Colors are very visible and plane is extremely easy to TO & land.

OS 120 AX gives unlimited vertical after 5 tanks and it's not even broken in yet, 1/3 throttle provides more than enough power for most conventional aerobatics (huge loops, etc.). I didn't try much 3D as the engine was still running very rich and wanted to avoid too much nose up and throttle transition type 3D flight. THE 120AX is using a bisson muffler that is shortened by about 2" to fit in the cowl (Also constricted the exhaust hole ever so slightly with JB weld to compensate for the loss of back pressure from the mod). The 90-degree standard muffler set up will fit as well but I don't like the looks of side-mounted engines. Guessing the plane comes in between 8.5 and 9 lbs with a 6volt battery firewall re-enforcement and pilot figure. Will try to get a more accurate weight soon.

RE: Showtime
 

Hi all, Well after only about 15 flights, my stab. has some play in them:-(( I noticed
it this morning on my checks before loading in the car ( she has been treated "Super
Nice too"... So she staied home:(( Looks like I'm going to the "permanent on" by way
of epoxy... No make that gorilla glue... But I still need to have a look at it first....

RE: Showtime
 

Hi Again,

Well I got around to checking the stab., Found the wing tube to be the culprit, not the tube
itself or stab, but socket in the fuse(not sure that's what it's called).. The alignment pins
look great, during the build I even added C.A. to all the areas back there....
I tried both tubes, (one brand new, I ordered another because I "sort-of" [:@] messed up
on the tap( mine is a 4 hole tap[:@] ) ... Anyway they both had the same play... So Gorilla glue it is.....

RE: Showtime
 

Anybody have one with an OS 91 surpass on it?? What prop and how is it?

RE: Showtime
 

I had another one with a 91 fx in it and it was more of a pattern plane. Now I want something for hovering, will this engine do it? 91 surpass

RE: Showtime
 

91 surpass will be less than the 91 fx. If you wannna 3D get a saito 125, YS 110, or a maybe a os 120 AX.

RE: Showtime
 

Hi guys,

Here's my first serious trial to huck the Showtime, it is 9.4MB have a look:

http://www.aeromodelling.gr/ForumS/i...tpmod;dl=get68

Just try to maximise the window a bit as it was recorded with a photo camera

Now I'm pretty confident with the YS-110 and will try next time some lower harrier rolls.

Rgrds

Nick

ps: By the way whs is the dead spot??? :)

RE: Showtime
 

I just maidened mine yesterday with a ys 91. I'm having problems though with it rolling out of loops. At the bottom of the loop it rolls hard to the right. Could this be servo blowback? I have hs 475 servos so they are probably marginal at 6v. Anything else I should check?
Thanks

RE: Showtime
 

Nate1001,
Check your incidence on all surfaces I found major warp in the elevators that caused some similar tendencies to what you are describing.

Also check that the throw on all surfaces is exactly indentical.

RE: Showtime
 

I checked the incidences and they all seem to be the same. I also checked for warped ailerons but they're fine. I even prurposely gave more throw on the right side but that didn't make any difference. I also checked the lateral balance and thats okay too. I did find that if I trim the rudder left it almost goes away but then flies sideways. I'm really disapointed because I just got rid of a funtana that had the same problem.
This may be up for sale soon.
Thanks for the help.

RE: Showtime
 

Have you checked the travel on the elevators to make sure they are synchronized? I tape a push rod on each elevator and point them past the TE of the rudder then using your TX give up elevator and see if the travel is the same for both if not you will need to adjust them.

I'm not familiar with the 475 how much torque do they have?

Don't give up....once you get this ironed out you will love this plane.

RE: Showtime
 

They are the same as far as I can tell, but I also purposely gave more on the one side to compensate. It doesn't sem like that because it only rolls at the bottom of a loop or a pull out of a dive.

RE: Showtime
 

That is when you would normally be pulling up elevator and if both halfs aren't the same you would be getting uneven pull causing a roll to one side.

RE: Showtime
 

What I mean is it doesn't roll out when pulling up inverted or on a hard turn.

RE: Showtime
 

I know this sounds basic but, are you sure your not giving some right imput when you pull out? If it has a tendency to pull right on that manuver it should pull right all the time. Have a buddy try it.

RE: Showtime
 

I'll have someone else try, but its more of a gentle snap then a roll out. Out of a loop when the planes just reaches level, then it pretty suddenly rolls right. If anybody is in the bucks county, pa area that could give me some help, it would be much appreciated.
Thanks

RE: Showtime
 

Does it do the same thing out of a split S?

RE: Showtime
 

Started putting my Showtime together last night with a friend of mine... He brought over his incidence meter. After all the talk here about incidences being off I knew they had to be checked...

My ShowTime has .5 degree negative incidence in each wing and each rear stab half. .5 degrees all around. What is the incidence of this plane SUPPOSED to be? 0* all around? -.5* all around like mine?

RE: Showtime
 

You might be okay; it depends upon what you used as a reference line.

If you look carefully, you'll see that the four fuselage surfaces (top, bottom, sides) on this airplane ALL have a slight taper toward the tail. In practical terms, what that means is if you set the fuselage, minus the gear, on a flat surface and use the upper edge of the fuselage (where the canopy hatch fits) as a reference/zero line, your meter will NOT tell you accurately what you've got on the wings and stabs, since your reference line is not parallel to the flat surface.

The way to do it is to prop the model in a cradle and use a bubble level on the throttle servo tray, which IS perpendicular to the fire wall, to get a zero reference.

I went with zero all around. Dunno what to think about your negative half degree. If you had put the fuse on a flat surface, as above, you should have gotten a POSITIVE reading. But at any rate, be glad they're all the same. I'd make a post on Mike McConville's forum to ask his opinion , just to be sure. I'm betting he'll say no problem.

But whatever the outcome, do yourself a BIG favor and glue those stabs in place.

You're going to like this model. I feel it is the best all-around sport model I've had in twenty years of building kits and ARFs. The UCD 60 has as wide a flight envelope (perhaps a bit wider at low speed), but looks rather bizarre and is a PITA to tote around due to the huge one-piece wing.

RE: Showtime
 

Thanks for the info...

What we did was set the plane on a table with the gear on and propped up the rear until the firewall was perfectly vertical. We then checked incidence. I'll definitely go ahead and post the question in Mike McConville's forum. :)

RE: Showtime
 

Ive read a few posts on Mikes forum regarding the showtime and I believe that he said the easiest way is to set the firewall vertical and set the incidences from that. When i did did ive gotten some way off readings upwards of +4 deg. When i mounted the motor and everything i leveled the plane via the crankshaft of the saito and seen much closer measurments. On my plane every one of my wings are off like .5 to 1 deg. Im going to fly it anyway and see what happens. Here is the link to one of Mikes threads on the Showtime.
http://www.rcuniverse.com/forum/m_38...tm.htm#3815874

You can try to level the plane via the firewall or just mount the motor and level it that way. Or the leveling the plane via the throttle servo tray. Which by the way is a good idea... Clever one!!

RE: Showtime
 

Guys my Showtime has an offset beteween the stab and the wings of around 1' measured with a Robart incidence meter. I don't really know which one to take as a reference in order to adjust it. The plane seems to be just right for precision and 3D and I think the CG is rather conservative for 3D but the plane flies with trim down elevator, about 3-4 clicks. I went through the basic trimming procedure to check the CG such as 45' degrees upline half roll and the plane pulls towards the belly which means that is tail heavy. I think this mainly has to do with the incidence offset and not the aft CG.

I was planning to use the plane for pattern flying but now I'm a bit reluctant. It is good for freestyle but not for pattern IMO. Any recommendations on that situation?

Nick