RE: Ultra Rc Evolution
 

Well, we are getting close!

The wing position will be locked in tomorow - need a nights sleep before the big decision.

I ducted the air a little in the cowl to put cool air on the crankcase/bearing area. The air to the head and the barrel is also split to put fresh air on the head.

Saturday is looking good for test flights:)

Positioned the remote needle through the crankcase cooling vent.

Regards,

Eric.

RE: Ultra Rc Evolution
 

I weighed everything this morning. All these weights include the servoes etc. a Tanic 2500 Li-Po RX pack, OS 1.60 etc.

Left wing - 14.5 oz
Right wing - 14.5 oz
Including wing-tube and sleeve 31.1 oz


Wing -------------- 1 lb 15.1 oz
Fuselage----------- 8 lb 8.3 oz
-----------------
Total--------------- 10 lb 7.4 oz
===========

This puts it well within the 11 lb pattern limit and well within the capability of the current pattern engines and electric motors.

Will probably add an ounce of velcro tying down the pack and the RX, then it's test time ;)

Regards,

Eric.

RE: Ultra Rc Evolution
 

.
.
.
Will you PLEASE go fly this thing ?!?!?!?!?!?!
.
.
.

RE: Ultra Rc Evolution
 

Eric,
With all the warps, twists and stuff falling off that thing do you anticipate an uncommanded snap roll on lift off?
;););)
Just kidding!
Good luck!
JLK

RE: Ultra Rc Evolution
 

Eric
Man that looks great.
Could you tell me what paint you used on the canopy. I'd love to duplicate it when I repair my crushed one. I was thinking of black but your blue/silver looks really good.

Now I do have to ask this, Is your AMA # on the LEFT wing panel instead of the right one? Doesn't it go on the right side. :D

The JR stickers are really cool on the wing & stab. It's as if the scheme was laid out with that in mind. I gotta get me some that size.

Eddie

RE: Ultra Rc Evolution
 

Keith,
I almost did today but got tied up helping a retired club member program his Polk's radio. Took an afternoon :-)

Regards,

Eric.

RE: Ultra Rc Evolution
 

To get a speckled finish, you first mask all of the outside. I use plastic kitchen wrap to cover the large outside areas.

Hold the canopy about two feet below the spray can and make two or three light puffy passes. The paint I use is R/C body paint. (Pactra I think).

Wait until the speckles are really dry. Because you used clear cling-wrap over the main area you can see the speckles when you hold the canopy up to the light.

Then spray the silver several times, allowing it time to dry between coatings. A warm room is a good help in the drying.

The canopy is already sprayed red on the outside. So if you mess up the speckling, you can wipe it all out with thinner and do it all again.

I figured that the silver would reflect the heat the best.

I was concious that it might get a bit boring, for the reader, if I detailed all of the work and reported it at the pace that I was doing it. But it I also thought that it would be more realistic if I did it that way.

Regards,

Eric.

BTW - The CG came out just great with the wing-tube placed forward in the slot. The Li-Po is just behind the firewall and the RX is behind the tank and tube position.

RE: Ultra Rc Evolution
 

Eddie.

Just a word of advice. If you paint this canopy black, it will surely melt in the sun. It is very thin.

Chris

RE: Ultra Rc Evolution
 

Thanks Chris
I worded my post incorrectly. I was thinkiing of doing the black shadow rim around the silver. But you're absolutely correct it still might get too hot.
I'm definaetly gonna do it similar to Troy's but with a carbon plate across the middle for reinforcement and to help push out some of the crunch.
I thought you must be using one of the car body paints. As soon as I can get some, I'll go ahead and repair the canopy & post a pic of it here.


Eric, if i coud bug you with 1 more question. I have read the giles review but still not sure how you ,mounted the wing adjusters in the fuse. Did you cut away the plate that was originally intended for the wing tab to be bolted down onto. htye holes in the wing is straight forward, no problem.
Thanks again

Eddie (swlarcham rcu) ebatchelor (flying Giants)

RE: Ultra Rc Evolution
 

"Eric, if i could bug you with 1 more question. I have read the giles review but still not sure how you ,mounted the wing adjusters in the fuse. Did you cut away the plate that was originally intended for the wing tab to be bolted down onto. htye holes in the wing is straight forward, no problem.
Thanks again"

I cut away the horizontal tab-plates and fitted ply plates flat to the inside of the fuselage. These support the bolts for the wing-adjusters - E

RE: Ultra Rc Evolution
 

I fitted it to both sides. Also a shot of the frame-work. The turtle-deck is a sheeted foam tunnel.

- Evil-Eric is back in the air [8D]

RE: Ultra Rc Evolution
 

It was a litte sunny, late in the day, so I measured the red and the silver parts of the canopy/top-deck.

Eric.

RE: Ultra Rc Evolution
 

Took the Evolution to the field today , just for you Keith, despite the rain. Ran up the OS 1.60 and an APC 17 x 13. and kept looking at the 15-20 mph wind and the clouds. Took a bunch of static photos while we waited around.

RE: Ultra Rc Evolution
 

Passing the time away with the camera.

The wind dropped a lot and I looked out at the runway.

Started the OS with a single back-flip! Taxied out and then, well, maybe tomorrow I'll have more energy to type - Nite Keith:)

Evil-Eric....

RE: Ultra Rc Evolution
 

.
.
.
Dang, them are some LOOOONNGG landing gear!!
.
.
.

RE: Ultra Rc Evolution
 

The plane can be and electric version as well (It has parts and instructions to "E" it!) so it allows for up to the 24" props. I shortened mine by and inch already. You can take off much more. I probably will. They are easy to replace.

Eric.

RE: Ultra Rc Evolution
 

OK, I'm awake now. Here is my "First-flight" report.

9/23/2006.

FYI - The CG used was 200- mm, 7-7/8” from the LE of the wing. The wing was installed all of the way forward.

The EVOLUTION tracked dead straight and lifted off with ease at on third throttle.

Some up-elevator trim was added. I had the trim sensitivity set low so 5 beeps did not cause much of a change in actual elevator position. In fact I could not see much difference from the bench setting after I landed.

Then I dialed some right aileron to get the airplane to fly straight and level, hands-off. The rudder seemed about right when I flew directly into the wind.

Up and down lines were tested first. The airplane went straight up. So far so good! It pulled slightly to the canopy in the down line. I added 1% of down trim at low throttle to take care of that. The vertical performance was really good. You could enter an up-line on 1/4 throttle, ease up to half throttle and keep going. If you go to full throttle you can go completely out of site very, very quickly.

Spin entry was easy and predictable. I needed to select a higher elevator rate fro a rudder and elevator only spin. For testing I set my triple rate to 80%, 90% and 100% of the recommended high rates.

All four snaps were tried and looked pretty good. The negative snaps were stronger than the positive snaps. Next time I’ll reduce the down elevator and leave the up as it is.

The fuel was not going to last for ever so some stretched out slow rolls were flown. These were easy to perform. I tried some 402-two-consecutive rolls and they only needed a tiny pump of down during the inverted portions.

In the knife-edge position, you could see a small pull to the canopy but it was a bit windy so I’ll wait until I get a better day to adjust that.
The rudder was very strong. Probably a combination of the 8611 strength and a rudder that works as well if not better than the ICEPOINT.

Landing was simply a matter of lining up on the runway, chopping the gas to idle, switching in a little airbrake and letting the airplane land with a small flare on touchdown.

Looks like a viable pattern airplane or a smooth sport aerobatics option. The price is good. You need to have a little building skill, but you have most of the work done.

More on the flying when the wind and rain stops.

Regards,

Eric.

RE: Ultra Rc Evolution
 

Great job Eric. Lot's of very helpful information. I just want to know one more thing. What pipe are you using on your OS 160 and what is the length from exhaust port to the end of the pipe. Looks like an Aeroslave Pipe, which I have one of.

Thanks

RE: Ultra Rc Evolution
 

Eric, thanks for all the build info and test flight report. A couple of quick questions and sorry if I missed this info in your post.

Finals weight?

Any concerns with the elevator/aileron construction (lack of sheeting and stiffness)? I had the chance to examine an Evolution yesterday and was surprised to see the elev and ail construction with no sheeting. They were flimsy and easily twisted with gentle twisting by hand. Did you experience any mushiness or flutter symptoms during flight? Did you really wring it out with reverse avalanche type snaps and higher speed maneuvers or is that to come in future reports?

Hopefully this plane will be a choice for people that are looking for a lower cost 2M type plane for pattern use.

Thx, Woodie (Don Atwood)

RE: Ultra Rc Evolution
 

Hello Eric:

The qusetion I have is will the gear hold up ? I have a great Evolution kit with only one defect. I fly almost always on grass so they need to be strong.

Thank kirk

RE: Ultra Rc Evolution
 

I obviously have my issues with this plane. But
The gear will hold up in my opinion. As good as any other setup. It all depends on the kind of pilot that you are. If you grease em in every time your gear holds. If you are have the tendency to land a little rough, no gear will hold up.
I feel this will hold up for me. But I'm a greaser. LOL :D

Chris

RE: Ultra Rc Evolution
 

It's an ES 1.40 medium length pipe.

The tuning on the OS 1.60 is pretty "soft". It's really a side-exhaust sport engine after all. I just use the Mueller header as supplied. Don't have measurement of that set up handy. Plane is in the car and it's raining [:o]

Eric.

RE: Ultra Rc Evolution
 

Thanks Eric. I'll set mine up the same.

RE: Ultra Rc Evolution
 

Well I think I am ok but you never know . I saw several of the big dawgs in FAI at the nats come in fast and hit hard in that wind . I know that the Boly gear can take it , we have a club member that squats his out nearly every time he lands and they snap right back to position. I know I will do that sometime also .

Kirk

RE: Ultra Rc Evolution
 

It's not just the gear, but the gear mount.

I feel this will take a bit of abuse. Not much, but a little. It could be why they are angled back instead of straight down.
I dunno, I say this, but I haven't flown it. Don't know if I will ever get to.

Bryan...... Where's my phone call that was supposed to happen mid week????????????

Chris