8ft Zagi Sloper - DIY / Hot cutting / Fiberglass - MAIDENED!

Tronglodon

Junior Member
Tick Point is now officially on my bucket list, this looks like a great place to fly. Last summer I was at a wedding at Pelican Inn in Muir Beach. I walked down the trail to the water with the kids before the ceremony got started. I didn't realize then we were just a stone's throw from such a great place to fly!
 

thenated0g

Drinker of coffee, Maker of things
Mentor
Always fun trying to store the big planes. This one was pretty easy though. Just some pvc pipe extensions.
IMG_20190703_063719.jpg
IMG_20190703_063727.jpg
 

Jackson T

Elite member
Nice job! And progressing with quite a nice tempo - keep up the good work! Bet you will enjoy flying it a lot - big planes just fly better!

A couple of local guys did a similar, slightly larger project, based loosely on the dreamflight weasel plank:

Figured the clips might add a little extra "itch" towards getting yours airworthy (not that it seems you need it) ;):D
You mean SpeedsterDEN is "one of the local guys" at your location? Cool! I'm a big fan of his projects, especially his 6m DG800.
 

thenated0g

Drinker of coffee, Maker of things
Mentor
@bracesport
The previous years in my hobby were building on a coffee table or in a small office so been really happy with our current house. Previous owner had built a finished shop in the back of the 2 car garage so i can leave my messes out and come back in a week or two and its exactly how i left it. My problem is moving to all these big builds uses up space fast. So i pretty often go thru old builds i havent flown in years and start pulling parts out to make room.
 

Jackson T

Elite member
I don't live near any slopes, but we visit our friends on the coast a few times a year, and there's plenty of slopes with the coastal wind there. I'm thinking of trying SS out, what do you think would be a relatively easy slope soarer to build/fly/transport?
 

thenated0g

Drinker of coffee, Maker of things
Mentor
I don't live near any slopes, but we visit our friends on the coast a few times a year, and there's plenty of slopes with the coastal wind there. I'm thinking of trying SS out, what do you think would be a relatively easy slope soarer to build/fly/transport?

A flitetest versa wing would probably make a good first plane that wont cost a bunch of money. You could either grab a 2200mah nimh pack for cheap or use a 3s pack with a ubec and throw 2 servos in. You will need some weight in the nose, even without the motor on the back. This is one of the great things about slopers, they are a lot cheaper to build with no motor, no esc, and a $12 nimh battery.
Another great thing about flitetest planes as slopers is that the clark-Y kind of sucks for sloping, but what that means is they dont get going very fast and so, assuming you have enough wind, they will fly fairly slow and predictably.

One of the things about slope soaring this is soo different from powered flying is you need a range of planes based off of the wind speed and site your at. If you really want to do this than i would suggest hitting up rcgroups or similar places and ask about slope soaring in that area. Find a local weather station and keep an eye on the winds so you get an idea of what speeds to expect.
I use this site and its been accurate: https://www.windfinder.com
I strongly suggest posting in the slope soaring thread here asking about sites and or search for previous posts related to where you are going. Slope guys love sharing spots and helping eachother out. One of the better rcgroups thread sections, no jerks usually.
https://www.rcgroups.com/slope-97/

Another solution is to build planes as light as you can (so it can fly in light winds) but have a spot to put a bunch of lead.

I would say a zagi wing would be great as its relatively cheap ($65) is made of EPP (wont explode into popcorn on crash) and has a pretty wide range of flying speeds (5mph +). A Lot of guys will get steel or lead sheets from the hardware store and either cut them into rectangles to stack as many as they need to get into the faster air or fold them into rectangles and just tape them to cg depending on how windy it is.
https://zagi.com/product/thl/

My F-sst wing i built a little heavy as i painted it by hand. I fly it in about 12-20mph winds. 20 is really pushing it, its a fight to not get kicked out. Other builders say they fly theirs in 8-10.

If you want something Almost Ready to Fly than i would say a Weasel from dreamflight. its range is about 7-20mph and all the dreamflight planes break apart really easy and you just use the box it comes in as transport/storage.
https://dream-flight.com/products/weasel-trek

I usually bring my Dreamflight alula everytime as its good for like 6-10mph winds and than my planky 2.0 as it will do 12-15mph unballasted and than i can load it up with lead for 25mph+. The alula can be dlg tossed as well if you want.

Another option could be getting something like a Phoenix powered glider. It slopes really well but its got a motor if you get in trouble or there is no wind, at least you can powered fly around.

and finally i guess i would recommend confirming cg and throws/trim by hand tossing before you attempt at a cliff.
 

bracesport

Legendary member
@thenated0g - a nice post for us nubes - already checking out the RC groups link - I realise that weight is related to size, but in the 1.0-1.2m range (Versa, Spitfire, DLG) without ballast, what would be the ideal wind speed? and how much added ballast at the CG in comparison would you add to go to the next level?
 

thenated0g

Drinker of coffee, Maker of things
Mentor
really hard to know but i usually look for anything above 12mph is going to be good. But its also related to your hill. If you have 100 feet of cliff below you going 12 mphs vs a little bump, that 100 feet of wind is all pushing on itself and up.

But i would say look for a day with 12-20mph wind.

Its not just weight its the wing loading. How much wing you have vs its weight. Lighter wing loading, slower stall, means slower wind needed to slope.
 

bracesport

Legendary member
It is a bit of a science eh - but I guess if I target 20kph+ wind and try all three I will learn something! :D
 

Jackson T

Elite member
@thenated0g, Thanks! The foamboard at my location is heavy and expensive ($17 for an 80x100cm sheet), my FT Arrow had a flying weight of 390 grams with an 800mah 3s and lead to get the right CG, so I'm not super confident of making an FT Versa for sloping. After building so many planes, I don't think I could buy a plane if there's any chance of building anything remotely similar :p. Would a Tiny Trainer slope?
 

DKchris

Member
You mean SpeedsterDEN is "one of the local guys" at your location? Cool! I'm a big fan of his projects, especially his 6m DG800.

Mainland Denmark can pretty much fit in a 200x200 mile square box, if you exclude a few small islands........and Greenland. When I say local, I must admit I mean "Danish" in this case, to be honest. Speedster lives and generally flies in an area about 4 hours drive from where I live, so pretty much as far from each other as possible within the country as you can be; Then on the other hand I grew up less than an hour from his home. It's basically a small country. Larger in area than Maryland, but smaller than West Virginia. Population about three quarters of that of New York City.