Hyper Viper photo and info

LAST EDITED ON Feb-23-04 AT 07:15 PM (CDT)
 
Try this site:

http://www.ehobbies.com/rc-cox-6020.html

Some of the info is wrong. There is no rubber-band assembly, and the model includes a starter battery box that you can fill with 2 D-cells, and a glow-plug clip.

But the photo is nice!

Here are a couple of shots of mine. One thing to note, during break-in some 25% nitro fuel splashed on the black anti-glare paint. Didn't take it off, but it did leave dull spots. If the weather clears, will try to fly on Wednesday morning.
Steve

Hmm,
Isn't it a bit unusual that the engine cylinder is to the inside of the plane (I assume this puppy flies CCW!)? I had noticed that on the Tower Hobbies Site photo, but thought that it was a mistake or a flipped negative.
Since Mike Pratt designed this, I assume he had a good reason for it.

Like a stock Fox .35 flown on a profile, the C*x reed engines stutter at some point in a maneuver. The ME-109 would hiccup at the transition from outside loop to inside loop of the figure-8. Every time, every model.

Dale Kirn found that putting the cylinder to the outside helped, Mikey found that putting it to the inside just about cures the problem. Thus the unusual placement. I eagerly await my chance to verify his findings!

Just received by Hyper Viper today. I will try to fly it this weekend and report. I notice that the engine cylinder is on the inboard side. Why did Mike design it this way?

Ummm, try reading the preceeding post?

A few questions.
I ordered my Last Monday and can't wait to get it.
(1) Are the wings held on by tape like the original Cox ME109 or
the Chipmunk?
(2) From the Picture of your plane,it looks as if there is a weight
box on the outboard tip, is there one?
(3) What type Cox Engine is supplied, Single or dual port, Golden
Bee or Black Widow?

(4) What length line are they suggesting, .012 @ 35' or less?

Mike Clark
(MikeC)

The wings are clamped between the top half and bottom half of the fuselage. Although they are molded in two pieces (top and bottom), they are delivered joined.

There is a cavity on the underside of the outboard wing with a metal weight in it. Not exactly a weight box, but a convenient place to add more tip weight if needed.

Instructions recommend 35' of the dacron lines. See Mikey's post above for recommendation on lines. Your .012 lines are much too large and heavy.

The engine has a plastic backplate with no integral tank. There is a seperate 1 oz tank that mounts in the fuselage. Based on break-in, the engine has good power. Mikey's post above suggests how to get additional power.

Steve

I found the inboard cylinder placement a bit odd also. Being right handed,I found myself reaching over the spinning prop to disconnect the glow plug wire. There may be a preformance reason for the placement, but I wonder about kids and the prop. Also, the bottom exhaust port exhausts into the belly pan because of an offset engine placement. Has anyone else noticed this on there plane?
My repairs are almost complete. Hope to try flying again tomorrow if the weather holds out.
Rob Johnson
Orange, CA.

Finally got in a couple of flights this morning. Light winds and about 50 degrees. Airplane is completely stock and I used the dacron lines at 35 ft. and the handle handle that came with the kit. Fuel was 25% nitro.

The airplane flys pretty well with a couple of exceptions:
1. It flys with the inboard wing low both upright and inverted. Will add a little tip weight before next flights.

2. The engine slows significantly on inside loops. It has been a long time since I have flown an .049, but it sounds like it is going rich. No problems with outside loops.

The suggested 35 ft lines are too short. I did not have anyone with a stopwatch around, but a rough estimate was about 3 second laps. I will go to 42' when I switch to .008 cables. With the stock tank, the engine runs a long time. With the short lines and the maneuvers limited by the engine problem on insides, it seemed like an hour, but is more like 7 minutes.

Any suggestions on fixing the engine problem?

Steve

As I recall, there is no room to shim the tank, but can you insert a wire into the pickup tube and bend it more toward the bottom of the model? A hair dryer might help tweak the plastic. That will do the same job.

Yet another possibility would be to seal both vents, and install a uniflo vent out the side of the model. That could then be height adjusted to give you even run top and bottom, and probably improve overall run too. See my article in Flying Models "Tanks fer Nuttin' "
Flying Models April 2002.

Here's the FedEx box openin up

[photo not recovered: Fedexs.JPG]

And here's what's inside the shiney cardboard.

[photo not recovered: Outs.JPG]

And here be the parts out of the box.

[photo not recovered: Partss.JPG]

Now I've got to read the instructions and I'll give you some more photos of the construction. I don't have a fine enough scale for pieces, too bad. Would have been nice. I'll put it on the scales tomorrow at work to get the final weight though.

NOW THAT IS HOW YOU POST PICTURES.........EXCELLENT!!!!!!!!!

>And here's what's inside the shiney cardboard.
>
>[photo not recovered: Outs.JPG]
>

Does anyone know if Cox is putting a PAAMPA flyer in the box too?

It would be a great investment in the future.

It would be nice if Top Flite could do that too, wouldn't it?

LAST EDITED ON Feb-25-04 AT 06:00 PM (CDT)
 
It wasn't in my box.

And now to finish hijacking, the assembly

Here's inside the fuse, you remove 4 screws to get here

[photo not recovered: insides.JPG]

You take the belcrank off, flip over the fuse and put on the Horizontal

[photo not recovered: horizontals.JPG]

Then slip in the verticle

[photo not recovered: verticles.JPG]

Whip it back over and put a little screw in the center hole. It's kinda tight

[photo not recovered: tightfits.JPG]

Travel to the other end and slip on the black fuel line on that little brass nipple there. Almost as much fun as the tail screw.

[photo not recovered: engine insides.JPG]

Take this neat little tank, they ought to sell these!

[photo not recovered: tanks.JPG]

and slip it in the slot, no adjustments.

[photo not recovered: tankins.JPG]

Put the belcrank on, pushrod in the center hole of the control horn and put the wing on.

[photo not recovered: wingons.JPG]

Then screw the plastic bottom back on

[photo not recovered: shellons.JPG]

Two more screws go in here, fuzzy, needed hemostats too.

[photo not recovered: Intheres.JPG]

Put the tail skid on now if you forgot, not that I did, REALLY

[photo not recovered: tailskids.JPG]

Snap in the mail gear

[photo not recovered: wheels2.JPG]

Engine side as is

[photo not recovered: propless2.JPG]

And with the prop and stuff on.

[photo not recovered: propons.JPG]

And then, uh, it's DONE, here it is next to your average sized Beagle

[photo not recovered: ozzyandplanes.JPG]

The cats however, unimpressed

[photo not recovered: CarnivoresUnimpresseds.JPG]

Pictures are on my site so as not to hammer Leonards.

Excellent job, Mr. Clean!

LAST EDITED ON Feb-25-04 AT 10:22 PM (CDT)
 
Got mine today! Sure is cute! I'm trying to decide how to put leadout wires on it that will be easy to adjust at the tip guide. Already have some 42' .008 lines made up, along with one of Larry's neat-o handles. Minnesota still has the finish off the snow and the resulting mud before good flying season.

I installed 015 cable leadout wire using aluminum crimps on by Hyper Viper. I have to dremel out the exit hole in the fuselage to make sure that the crimps don't catch on the edge.

>>And here's what's inside the shiney cardboard.
>>
>>[photo not recovered: Outs.JPG]
>>
>
>Does anyone know if Cox is putting a PAAMPA flyer in the box
>too?
>
>It would be a great investment in the future.
>
>It would be nice if Top Flite could do that too, wouldn't
>it?

That's PAMPA.

Hey, that's such a great idea that we already had it at the PAMPA business meeting. The web side of it was in place, and it's also easy to re-jigger for the new site. Since these ARFs are going to be sitting around forever, we needed a way to decouple the points of contact from individuals (like the PAMPA handout) holding individual positions. The solution - put a URL on the flier, and have the URL direct the reader to email links that change when the officers change.

This seems well in place, and I need to talk to Dave Cook about the rest of it. We didn't identify an actionee, but I think Dave was the closest we came.

It was in the minutes.

Looks like a nice thick airfoil. How thick is it?

I think it's an 18% airfoil. Mine measure about 1" at the thickest point.

>I think it's an 18% airfoil. Mine measure about 1" at the
>thickest point.

Heman, it is indeed a 1" thick airfoil and the chord at this point (the root)is 6-7/8. The thickness is then 14.5%.

On the back of the Stunt Manual, Cox includes reference to a few stunt web sites. I was suprise to see that mine was on the top of the list:

Yup, how I missed the instructions for that and your link accordingly I'll never know. The pamplet was on top of the stuff as it came out of the box, you can see it right there in the picture. Oh well, I think I put it down with the Tower package of coupons for siding, overhead awnings and RC Cars. Probably why I forgot about it.

Weighed mine at work today, 10.6 ounces.

First off MrClean,
That is not an avearage size Beagle!

Second that HyperViper looks interesting but where are the combat planes?

Ich bin vorbote des todes!

LAST EDITED ON Feb-27-04 AT 10:19 AM (CDT)
 
Well, he's average if you let all the rest of them root in the garbage!

The planes are hibernating. The engines oiled and stowed, with care, for happier times.