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Corsa Maiden!!
- Thread starter jakem
- Start date
Shoelace
Very Strong User
Very cool. I'll have to try it at some point. I'm sure it's pretty fun. I nerded out a while ago and watched Spencer's entire lecture he gave on it that's on YouTube. Goes through the history of DS, and it all started from a complete mistake when a plane got a little out of control, went to the back side, recovered from what would normally be a crash, and the lightbulb went on. He goes through the physics of DS flight. It's worth a watch if you've never checked it out.
Doc J
Very Strong User
You know I still have a big question mark on the Kinetic models.
If you look at the way they are designed - 1 and 2 - there is definite development and progress. The wing shape looks to me to be about as good as it can be for the application, though I'm not sure it would work that well on a floater! The MKII seems to have everything important the right shape and in the right place. Its very specialized and very advanced.
What I can't figure out is who actually did the design of the MKI. I know Steven Seim did the CAD work, but from time to time he also claims to have orginated the orginal design ideas and the actual design. Was the MKI designed by Seim? Do any of you DS Berserkers know?
It doesnt actually matter, but I'm curious because from time to time I have had people claim to be the designer for my some of models too.
Incidentally I dont make or condone DS as a matter of policy. As a manufatuer I can control the design and contruction of my models but I cannot control who buys them.
However the SS versions of my models are actually capable of at least light DS and probably more. With the Sine wave Spar they are very light and strong especially in torsion and that is probably the biggest DS model killer.
WE have seen Jake smoothly DS'ing a Corsa - believe it or not that was a Light layup version with no Ballast.
Food for thought.
Cheers,
Doc.
Doc J
Very Strong User
Hey David - I can tell you the Corsa hovers like a kestrel. Its the esiest way to land it.
Doc.
You wont regret getting a Corsa!
Shoelace
Very Strong User
I keep going to the Aloft store website and looking at it. It's even $100 off right now, and the red/white/blue is still available which is the one I'd want for sure.
How difficult was the build? I'm NOT an expert builder and I sometimes wonder how I ever put these models together when I was a kid. I used to fly a Freedom X-Cel in the '80s and I bought a kit that I found for sale. I opened up the box, took out the plans, wondered how the hell I ever built the thing at 15 years old, closed the box and put it in the closet where it will probably sit for a long time lol. I'd much rather buy a Corsa that was all ready to go, but that's not gonna be possible. What was your experience with it?
Doc J
Very Strong User
Its a really easy build, and the instructions are on our new website.
Added to that, that 100 Dollar discount model is the cheapest one there will ever will be. No more like that.
Some of the guys down south are buying my models from Germany with installation done and RTF as Aloft unfortunately does not offer the service. You can imagine the costs, double shipping and packing, Customs, and Germany sells the models at a higher price anyway. Wow.
I'd buy the plane and then get someone knowledgeable to guide you through the install - its really very simple and I have heard it can be done in 4 hours by someone experienced.
Cheers,
Doc.
Added to that, that 100 Dollar discount model is the cheapest one there will ever will be. No more like that.
Some of the guys down south are buying my models from Germany with installation done and RTF as Aloft unfortunately does not offer the service. You can imagine the costs, double shipping and packing, Customs, and Germany sells the models at a higher price anyway. Wow.
I'd buy the plane and then get someone knowledgeable to guide you through the install - its really very simple and I have heard it can be done in 4 hours by someone experienced.
Cheers,
Doc.
It's not bad at all. I'm the opposite of an expert builder and it went really smooth. I worked on it after work for a couple hours during the week each day and then finished on Saturday. Well worth the effort to listen to the music it makes!
Nope, That is the one thing I'd do different. I havent had any problems but I like the idea of less stress on servos and tight linkages. That Tomas Liu stuff is nice to look at!
Doc J
Very Strong User
Tomas Liu's stuff is really, really, good Jake.
Some people forget that the system can be applied to the Horizontal/vertical stabilisers as well, where it will pretty much eliminate any flutter that could creep in.
Its funny: In the USA you guys tend to use the full IDS i.e. Spoon actuators. In Greater Europe they seem to prefer IDS but with control horns and no spoons. UK (Typically) 50:50. Asia = full IDS.
The thing is that if the spoons scare you, dont forget you can still use IDS but with control horns.
Cheers,
Doc
Last edited:
Hill Hobbit
Very Strong User
In terms of a good mechanical advantage setup, using IDS horns at the servo end then a threaded rod to a conventional control horn is actually pretty good. The pick-up point at the servo is close to the horn’s axis which gives more torque and less slop, then the conventional style external surface control horn has it’s pick up point a decent distance away from the hinge line. This imparts more torque to the control surface, whilst at the same time giving the servo a much easier job to do.
Another benefit of this type of linkage, is that more servo rotation is needed compared to full IDS. More servo rotation gives more power and resolution.
I’ve done full internal Servorahmen IDS and the 50/50 style, and know which I prefer.
It’s interesting that the European manufacturers of the super fast and heavy Swifts, Kobuz etc etc type models seen in the Alpine flying videos all still use totally conventional linkages with big external control horns.
The thing is though, there’s such a range of choices for glider wing linkages now for folks to spend their money on, it’s just a case of making your mind up. That’s the real problem lol!
Another benefit of this type of linkage, is that more servo rotation is needed compared to full IDS. More servo rotation gives more power and resolution.
I’ve done full internal Servorahmen IDS and the 50/50 style, and know which I prefer.
It’s interesting that the European manufacturers of the super fast and heavy Swifts, Kobuz etc etc type models seen in the Alpine flying videos all still use totally conventional linkages with big external control horns.
The thing is though, there’s such a range of choices for glider wing linkages now for folks to spend their money on, it’s just a case of making your mind up. That’s the real problem lol!
