- Mon Nov 21, 2016 3:13 pm
#393814
Can anyone tell me if the Slipstream control frame legs are the same as the Wills Wing Slipstream legs? Must I order from Aeros only?
Felix wrote:I guess, easy is a relative term :-) Just switched to Combat 13.2 GT. Have about 8 hours on it so far. Flying/thermalling is easy. Landings... I am still working on that part.ascaro wrote:...Combats are very simple to adjust,very easy to rig,eas to fly and land..I totally agree.
Thanks for sharing your thoughts and the awesome pictures! That's one hot wing you got there!
atmosphereship wrote:Well I went and did it. I pulled the trigger last week and ordered the Combat C 13.5 and will see it in 90 days. Just in time for the beginning of spring flying. It's also motivation for me to lose the 10 pounds of belly fat I've been wanting to lose for a while. Now I have to to fly this badass bird!
Comet wrote:Combats did very well at the just-concluded Canary Open, winning the meet.http://airtribune.com/xx-open-de-canarias/results
atmosphereship wrote:Can someone explain, in layman's terms, the chart on this page?The chart shows that the Aeros Combat with the tail added and sprogs 2° lower is more pitch stable than a typical DHV certified glider with no tail. The same Combat without the tail and sprogs 2° lower is much less pitch stable than a typical DHV certified glider. In other words, the tail is very effective according to the chart.
http://aeros.com.ua/structure/hg/tail_en.php
atmosphereship wrote:So, as airspeed increases the pitch stability increases? Bar pressure is increasing? I'm trying to understand the y-axis of the graph and the measurement of "pitch-up moment".Yes. That sums it up.
atmosphereship wrote:So, as airspeed increases the pitch stability increases? Bar pressure is increasing? I'm trying to understand the y-axis of the graph and the measurement of "pitch-up moment".Scott, yes the pitch stability increases with airspeed as does bar pressure. This is because the tail is canted down 5deg.
highhuber wrote:Thanks for your explanation Scot. Can't wait to take delivery and fly her.atmosphereship wrote:So, as airspeed increases the pitch stability increases? Bar pressure is increasing? I'm trying to understand the y-axis of the graph and the measurement of "pitch-up moment".Scott, yes the pitch stability increases with airspeed as does bar pressure. This is because the tail is canted down 5deg.
It is also mounted on the long fulcrum arm of the keel which gives it a mechanical advantage over the sprogs which are just lifting the trailing edge of the sail and are therefore much less effective for pitch stability.
The large jump up in the yellow line at higher speeds represents this effect on pitch stability with the tail in use.
I have flown my T2C with my atos tail a few times to experiment with its effects on pitch stabillity. It obviously dampens out the pitch stability of the wing but the Atos V tail is canted up or positive so it would lift my keel and bring my control bar back around 6 inches and lowered the bar pressure and I wasn't comfortable with this.
I therefore shimmed it up in back to make it neutral in pitch and found it much more to my liking. The control bar stayed in it's previous position with the same amount of bar pressure throughout the speed range and the tail added some pitch and directional stability also.
Although the Combat has a 2 ft. longer wingspan and greater aspect ratio wing so the tail probably does more for it then it would on my T2C. I rarely fly with the tail anymore because I find the wing is very balanced and stable without it. Although it does add 5sq/ft. of lift to the overall performance and therefore I might use it in early spring or winter conditions for that purpose.
Alot of design perameters go into adding the tail for pitch stability and over all safety and I'm sure that Aeros has considered them alll and feels the tail adds more safety and better handling and performance in their package.
Hopefully your first flight on it will alleviate any concerns about wether you stepped into something above your skill set and we can blow off some long flights together in the coming season.
Scot