J'Tec 35% Extra Build

[jtec/radiowave]

	Quote: Originally Posted by columbo
	In that case I will just start out with the one inch arms, fly it and see how she does. If I need more, then I will make the simple modification to the elevator servo bays. Some planes have a range of throw between low and high rates where they get squirly in 3D. I think this effect is less noticable in very stable good 3D planes...especially the larger ones. I just want to make sure that highest rates using a one inch arm are above that zone. I will take you guys word that 30-35 degrees is enough with this plane. Greg

Morning Greg,

We have never used anything over the 1" arm on the elevator on any of our 35% / 2.7meter designs. Honestly we have never run out of elevator. When you set up the plane with 12 to 15 degrees your going to say to yourself that it doesn't move much. You will be very suprised on how effective that amount of throw will be. You will be able to fly any IMAC sequence with it set there.

Al

[columbo]

Thanks Al.

It is reassuring to know that the control surfaces are that effective. If 12-15 degrees is enough for precision then 30-35 degrees should most likely be enough for 3D, especially for my style of 3D flying.

Greg

[dbcaster]

	Quote: Originally Posted by Barn-E-Stormer
	I can tell you these planes do not need alot of throw. They fly so well huge throws are a waste. Right now huge throws are a fad, and generally not needed. They just make you fly sloppy. The reality is most people are not experienced enough to go full circle on the throws thinking. Huge throws are like huge boobs. Everybody wants to see them but they don't know what to do with em.

Very well said

[customjrod]

	Quote: Originally Posted by Barn-E-Stormer
	I can tell you these planes do not need alot of throw. They fly so well huge throws are a waste. Right now huge throws are a fad, and generally not needed. They just make you fly sloppy. The reality is most people are not experienced enough to go full circle on the throws thinking. Huge throws are like huge boobs. Everybody wants to see them but they don't know what to do with em.

Freakin harlarity.

[Phxsparky12]

Are these Harry's Radiocraft Extra's? Those planes fly great. Ryan flew the 40% one in the TOC. Haven't heard from Harry and Radiocraft in quite a while since I haven't flown in the last 5-6yrs.

[dbcaster]

These are not the Radiocraft Extra's. I believe those were a low wing 330.

[MikeC3D]

.

[Kevin Y]

	Quote: Originally Posted by Phxsparky12
	Are these Harry's Radiocraft Extra's? Those planes fly great. Ryan flew the 40% one in the TOC. Haven't heard from Harry and Radiocraft in quite a while since I haven't flown in the last 5-6yrs.

No these are not. My family was at one time partners with Radiocraft but Radiocraft was disolved a long time ago. The airplanes do not share any parts from the radiocrafts and have a different construction style. While the Radiocraft airplanes flew very well our JTEC Radiowave airplanes are much improved in every aspect.

[JEFFRO503]

Hey Columbo or anyone else that was involved in this thread ( or even if you were'nt involved in this thread hehe) did you get your maiden flight done? I still have my eye out on this bird and just wanted to check in to see how thing we're going.

[jtsails]

	Quote: Originally Posted by JEFFRO503
	Hey Columbo or anyone else that was involved in this thread ( or even if you were'nt involved in this thread hehe) did you get your maiden flight done? I still have my eye out on this bird and just wanted to check in to see how thing we're going.

I've been flying one since November and recently put a new TMM TOC106 on it. I love it! This is my IMAC plane and I don't do much 3d flying so I can't comment on that side of the flight performance, but for precision aerobatics, it's awesome.
JT

[JEFFRO503]

Oh wow man...yeah I talked to you over in the 3MM TOC 106 thread. I didn't know you we're sticking it in a Jtec....should be a great combo! I was looking at actually slapping a BME 116 in the front of one of these. I was wanting the TOC 106 for my 35% sukhoi. How did you like all the construction and so forth on the JTEC? I haven't heard anything but good things about these birds so far.

[jtsails]

	Quote: Originally Posted by JEFFRO503
	Oh wow man...yeah I talked to you over in the 3MM TOC 106 thread. I didn't know you we're sticking it in a Jtec....should be a great combo! I was looking at actually slapping a BME 116 in the front of one of these. I was wanting the TOC 106 for my 35% sukhoi. How did you like all the construction and so forth on the JTEC? I haven't heard anything but good things about these birds so far.

It's first rate construction, if anything somewhat overbuilt. Still comes out at a good weight, mine was 25 lbs with a ZDZ 80 and canister and a little work to lighten it. Haven't weighed it with the 106 yet but I think it will be about 26.5. At these weights it flies extremely light and really floats. It feels like I could slow it to walking speed on landing! I added a little extra (one thin washer) right thrust and a little (two thin washers) up thrust. Still getting my setup nailed down, I've got the cg a touch too far back for IMAC, but I'm waiting for a new 3b prop before I reset it. The engine has plenty of power for this plane even on the first gallon of fuel. Assembly is pretty easy, although it was my first experience with Klett style hinges. They are nice but a little tougher to install than point hinges. The company is located a couple of hours drive from me and Al was nice enough to meet me at a fly-in to hand deliever my plane. His son Kevin insisted that I fly his plane which had a DA85 on it and then copied his radio setup into my radio for me.
JT

[columbo]

Still haven't started on mine yet. Just finishing up the 30% extreme flight yak. I've been lazy. However, I plan to get started in about a week. Warmer weather is starting to motivate me. I was originally planning on using the DL 100. I'm glad I waited. Will go with the new DL 111 when it becomes available. Other than the firewall needing to be pinned or bracketed, the construction appears top notch on the plane.

Greg

[JEFFRO503]

Right on guys.....i gotta get one of these ordered! I think since i'm not really into the IMAC stuff....just mainly fun flying and some pretty hard 3D type stuff , i think the BME 116 will do it good. I may even see if i can pick up on a used BME 105 , 108 or 110 as far as that goes.

Dang it...i think i may have asked this before....but JTEC is equipped with an option to do either a single or dual canister installation?

And Columbo.....i was drooling over that DL-111cc myself. I then checked into the new 3MM TOC 106cc ( they aren't called 3MM anymore) and i am leaning towards that one instead. I think that the DL may pull just a HAIR better in an RPM comparison , but the TOC weighs 3/4lb LESS than the DL...and from what Tom over at wild hare said , it's the smoothest 100 twin he's ever flown. The 3/4lb thing is what kind of sealed the deal for me on that....that's alot of extra weight the motor doesn't have to pull around. I think the DL is more of a copy on the DA and the TOC is more of a copy to the 3W. But either way.....you wonldn't go wrong with either the DL or TOC as far as that goes.

[jtsails]

The Jtec has a nice canister tunnel. With the ZDZ 80 I used a 70mm diameter can with no problem. 80mm would fit if you shave the formers. It's plenty wide to dual cans too.
I don't like to use pins or brackets on firewalls, they don't add much if any strength to a properly interlocked firewall. The Jtec has large interlocking tabs and really doesn't need any extra reinforcement. Most of the time I put a single layer of 2oz fiberglass on the back side, adds strength and locks everything together while adding a minuscule amount of weight.
JT