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Old Nov 23, 2012, 07:52 AM
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Originally Posted by prodjx View Post
I know for a fact there are some slope site's in Lima, pilot's also fly hang glider's and para-sail's. You could be up for hour's. There was a young man named Alex who live's in Lima last I heard he was an avid slope flyer. He even made a mold for a glider called the Jart, a dedicated slope speedster. He hasn't posted on the slope forum in a while but he did post some good video's of sloping in Lima.
Yes there are many good slopes in Lima. The one you are refering to and where Alex "lives" is Parque Gandhi. It is a long narrow park running parallel to the cliff in front of the ocean. Conditions are very good almost everyday, especially in the afternoons, it is a very popular place.
But I think the Zephyr is too light for this particular slope, would be hard to land, at least for me. Maybe a day when there is very little wind...
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Old Nov 23, 2012, 08:37 AM
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It's easy to practice landing LOL. I've flown a similar glider in 20mph wind's and it flew great, with wind's that strong when you round up into the wind you almost hover. A model made with bounceable foam is a great A/C to have as it build's up the confidence level. If you mess up the landing you should be able to fly again. I've probably learned most of what I know because I fly slope, you learn to use the wind and not be so much afraid of it. Later Dave.
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Old Nov 25, 2012, 06:41 PM
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The thing is that it is a narrow park (although quite long) that is limited by houses and buildings... so you cannot go too far back to head the wind, you have to land parallel to the park. The locals are experts landing there. I admit it frightens me but have managed to land "properly" the few times that I have flown there, but with a heavier plane though. I am sure the Zephyr will not be able to make it back to terra firma if launched there...
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Old Nov 25, 2012, 08:24 PM
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That's funny about the weight, many of the model's I've seen in the video's are lead sled slope rocket's. I guessing your Z-2 weigh's less than 16oz's. Keep practicing your landing's.
s
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Old Nov 25, 2012, 09:32 PM
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Hi Peruvian,
I would not fly a lightweight model on the slope unless the winds were light and you have a good landing area. Otherwise your beautiful model will not be able to penetrate and when you land one unexpected gust and you will end up crashing. THe Zephyr II is a handlaunch model meant for thermalling so I'd suggest using it for that. Sloping is fun but I've seen too many thermal planes crashed on our slope and not able to thermal very well after that. Fly a slope plane on the slope and a thermal plane on the flatlands.
Have fun with your Z2!
Ray
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Old Nov 26, 2012, 08:51 AM
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It's interesting that in the original construction article it show's the designer sloping his Zephr. I guess it's an individual's choice.
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Old Nov 26, 2012, 07:40 PM
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Thanks Ray, I do intend to fly it basicaly as a hand launch thermal plane, but would give it a try at the slope when the wind is very light (and all the slope planes are grounded).

Dave, the Zephyr should weigh around 8 oz. with a wing loading of around 3.5 oz/sq.ft. That is extremely light for the slope, but good for thermaling.

Right now I am struggling with the covering process. I never imagined how self-sticky Microlite could really be! It is getting on my nerves!! But I know I will manage... Photo soon.

Ricardo
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Old Nov 27, 2012, 07:49 PM
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Finished covering. Coverite Microlite is very good stuff. You have to be carefull because it is light and very self-sticky... but once the model is covered it tightens very well and it looks great.
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Old Nov 29, 2012, 04:10 PM
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Today y completed the Zephyr and it is ready to fly. It is a beautiful, warm and sunny day, but the most windy I can remember. So no maidening today. There are some things I have to confess (hope Mark is not annoyed): I made the fuse a couple of mm wider to fit the receiver comfortably and I used Mini E/Z Connectors and slightly larger control horns so the connectors would fit. It is easy to trim this way. The penalty is a bit more weight, which at the end was 8.65 oz., still it "feels" very light... I also bent the pushrods to achieve a more direct link with less friction. Here are some photos:

Regards,
Ricardo
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Old Nov 29, 2012, 06:58 PM
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Nice work Ricardo. I am a little concerned about the z bend's in the tail section. What diameter wire? And the rudder horn look's like it may hit the fuse side. Did the original plan's call for plywood horn's?
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Old Nov 29, 2012, 08:27 PM
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Thanks Dave. I don't like the bends in the tail section either but they allow less friction and therefore less effort by the servos. The wire is .032, but the plane is very light, so I don't think there will be any problem. I have done this before. In any case, if problems arise I can go back to straight wire or much less bend. The rudder horn does not hit the fuse by a reasonable margin, I have tested that. The plans don't mention the horns, there were two very small nylon horns included in the kit. I replaced them with slightly larger nylon horns so the E/Z connectors could fit. I am optimistic that this plane will fly good despite the modifications...
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Old Nov 29, 2012, 11:26 PM
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It should, and I hope it does.
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Old Nov 30, 2012, 11:27 AM
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Originally Posted by Peruvian View Post
Thanks Dave. I don't like the bends in the tail section either but they allow less friction and therefore less effort by the servos. The wire is .032, but the plane is very light, so I don't think there will be any problem. I have done this before. In any case, if problems arise I can go back to straight wire or much less bend. The rudder horn does not hit the fuse by a reasonable margin, I have tested that. The plans don't mention the horns, there were two very small nylon horns included in the kit. I replaced them with slightly larger nylon horns so the E/Z connectors could fit. I am optimistic that this plane will fly good despite the modifications...
Ricardo:

Your Zephyr II is very beautiful. I also used red on my wing and tail. So far I don't have a single patch.

I was wondering what your maximum rudder movement is (in mm or inches).

Craig
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Old Nov 30, 2012, 02:40 PM
Giorgos Stratakis
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Really nice one, Ricardo!

I'll agree with both you and Craig on the color decision. Red looks great on balsa built wings.

I'm buying too!
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Old Nov 30, 2012, 07:41 PM
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Craig:
Thanks for your kind words. I did see your e-Zephir's red wing and tail and liked it so I copied and also followed your advice on the Microlite. I hated it at one point while covering, but looking at the results now I am begining to love it.

The maximum rudder movement is 7/8" (22mm) to each side. The pushrod is in the outermost hole of the control horn, so I can still give it more movement but I want to try it first.

Ricardo
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