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The Ranger, an easily built high wing LSA runabout

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Gregory Perkins

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here is a few dozen ideas I compiled. This is the single greatest reason for amateur sport flying decline. IE high
cost of hanger space or unavailability..... Portable towable planes if they existed predominately .... would have resulted in a continuing hi activity level equal to two or three decades ago.
https://www.use.com/editset.pl?set=68ca7107ffb9de30915d

When you get the link scroll down to see all thumbnails.

I guess I am a little late in joining this forum.
 

BJC

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Welcome to HBA.

With all those examples of aircraft with folding wings, why do we not see more of them?


BJC
 

FritzW

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Excellent question! And a good spring board. How does one break out a thread?
Just start another thread with an appropriate title. ie. "Why don't we see more folding wings?". I think it'd be very interesting.

If your not a "thread starter" one of us would be happy to start it.
 

FritzW

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I'm still stuck on an engine for the Ranger. And if I keep psychoanalyzing the decision I'll never get this thing finished. So, unless I get *bad news from Hummel Engines, it's going to be a 42hp, hand propped, 1/2 VW.

*I sent him an email asking about availability and lead time. I've heard the wait times for one of his engines can be pretty long.
 

Hephaestus

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I'm still stuck on an engine for the Ranger. And if I keep psychoanalyzing the decision I'll never get this thing finished. So, unless I get *bad news from Hummel Engines, it's going to be a 42hp, hand propped, 1/2 VW.

*I sent him an email asking about availability and lead time. I've heard the wait times for one of his engines can be pretty long.
Between the 1/2vw, rotax 582, and other options (ie maybe Briggs) it might be easier to ballpark it, lighter engines mount farther forward heavier farther back. Then build cowl to suit engine choice. As long as there's a reasonable way and a realistically attainable entire in the weight/hp range to use - just allow a couple options and let the builder decide end of day. My .02
 

FritzW

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...just allow a couple options and let the builder decide end of day. My .02
Yep. Different engines just change a few parts in the front end, pick the engine you want and build it that way.

I'm going with a 1/2 VW just because it's a well established, turn key, off the shelf option ...and Hummel Engines is within driving range of my house ;)
 

Vigilant1

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Will you please repost those photos? I can't get them to download so I can enlarge them. Thanks.
George,
Sorry, I overlooked this post from you.
The photos are all in a single graphic. You should be able to highlight the whole thing and cut/paste it into another document. Unfortunately, it is fairly low resolution and it will probably break up if you enlarge it by very much.
I'll see if I can find the original source and get something sharper. I might have gotten it from the ghastly CX4 Yahoo pages of yore, so I don't hold out much hope of re-finding it.

I would think wing bolts or some other rapidly hand-tightenable hardware would allow the four fasteners per side to be put on and off in a hurry.

Edited to add:
I found the images of the CX4 wing fold bracket/fixture, I reposted some on the media section here.
 
Last edited:

erkki67

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Fritz, how long would the Ranger become if the wings are folded around the rear spar, in the folded configuration?

For the builders outside the US, those half VW engines are out of reach, due to freight, customs and avt, which can double the price your paying in the US.

My critter is going to have a B/S or derivative powerplant up in front.

I do like the thoughts of Armilite this concerning.
 

Hot Wings

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There would be some really significant disadvantages to do doing that. What would be the advantage?
What disadvantages? Structurally it should be a wash with a strut braced design unless you are using a single pin at the wing spar root rather than one at the top and bottom.

The big advantage is a shorter package when folded, at the expense of some width. And if that is no wider than the gear you end up with a real plus.
 

Vigilant1

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For the builders outside the US, those half VW engines are out of reach, due to freight, customs and avt, which can double the price your paying in the US.

My critter is going to have a B/S or derivative powerplant up in front.
If you think you can get by with 32 HP and you want a flight-proven B&S derivative, maybe check with the MiniSport folks and see if they'll sell you one of their SE33 engines (based on the B&S 810cc engine). Unfortunately, all of their dealers (France, Netherlands, Germany) are about 8 hours from you, and their HQs in Czech Republic is about 10 hours. Maybe make it a little holiday trip, get to see the engine up close, etc. I'm guessing they build the kits to order, but maybe they can put you in touch with a builder who has one on an airplane, or in a box.

What about that pretty little Swiss engine you showed here a few weeks ago?
 

FritzW

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What disadvantages? Structurally it should be a wash with a strut braced design unless you are using a single pin at the wing spar root rather than one at the top and bottom.
The biggest disadvantage is it would require a complete redesign of wing. You'd have all the weight, hassle and expense of a cantilever wing but you'd still need all the weight, hassle and expense of wing struts.

The big advantage is a shorter package when folded, at the expense of some width. And if that is no wider than the gear you end up with a real plus.
Is it too long? (If it ain't broke, why fix it?) Even pivoting at the rear spar (which is what Erkki asked about) it fits in a 20' shipping container. How much shorter does it need to be? If it pivoted at the front spar (which is where I plan to do it) it wouldn't add anything to the length. ...and it wouldn't add as much weight to the tailwheel when folded.

IMHO It sounds like an expensive, complicated, PITA solution to a problem that doesn't exist. ;)
 
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