Risers Improvement

I've been pimping my glider (Morpheus 19) all summer, trying to get more misty misty performance. Now, at the end of the season, I found the perfect way to make all spin manoevres work! I hope this works for other gliders too !

Category:

Sports

Tags:

• acro
• paragliding
• tuning
• pimping
• triming

[monkbaaz]

I am very confident in the improvement of the idea that I have stasrted the int. registering process 4 it, and have a plan of producing "full spacers" , affecting ALL LINE LEVElS, for special acro trim of the glider withought line lenghth changes! This could be a great project indeed. I'll keep you updated on my progress! Colin.

[monkbaaz]

Sorry for the lenghthty explanation, but I believe the "C" trim is a good ideea for further perfecting. As in addition to the Spacers' effect, I could fine trim the backwards profile to get more aerodinamics. BUT the main problem was the deepstall, not the flyback (more stable state of the glider ( more in pressure), thanx 2 horizontal airflow)

[monkbaaz]

BUT it is the PILOTS that will try it that will tell the difference. As for me and Morphilina, we are quite convinced. Have FUN !. I will come later with more considerations on the scientific aspect of the improvement.

[monkbaaz]

In normal flight A and B risers take 80% ? of pilotweight (majority). How is it in flyback? I don't have instruments 2 measure, but... I suspect the ratio inverts. And just because there is no air inflow into canopy through trailing edge, the small line angle shift (20%) is of great importance! Like the small rock that tilts the big chariott. Many people may argue how it is possible that such a small ratio 7.7 cm / 52 cm can make such a big difference, the physics of it is more complex that I've

[monkbaaz]

Thank you Ethan for your most positive response. It is perfect improvement 4 all Acro when people share their ideas on reasonable matters. Considering your advice, (shortening C's) I have been playing with my trimmers all summer long! And also separate trim for the lines. Nothing was comparable to the spacers improvement. Spacers+ C trim may help, but maybe later, perfecting.

[sonsofsol]

very good, very goooood!

[EthanGlessich]

3) u can try a couple of other configurations to determine the real driving force of the improved performance in spin. Try shortening d-lines (& maybe c-lines) by corresponding amount, & compare performance. Also, a side note re: spacer, u might not notice difference on dynamic manuevers, but u may have made the wing less efficient in glide by altering the camber. Either which way, I congratulate u 4 thinking about improvements, & making a great video.

Keep us informed of ur progress. Good luck!

[EthanGlessich]

2) I suspect the difference in performance may come about the change in camber that you have created (notice that the spacer also pushes forward on the c-lines as well as pushing back on the d's), or the effect of lowering the angle of attack of trailing edge, which in spin becomes the leading edge. By lowering the angle of attack on the trailing edge you make it easier for the wing to fly backwards, and this may have the result of increasing the inflation window as u describe it...

[EthanGlessich]

1) Hi Monkbaaz,

Novel idea. Let me share some of my preliminary thoughts.

The shrinking force as u have named it, will remain the same, this is the force of the vertical airflow on the wing. However, u may have added a little more horizontal force by spreading the lines. But given the length of the line compared to the shift u have created, my initial feeling is this force will have neglible difference. But this does not mean that you won't feel a difference in performance by adding ur spacer...

[obefab]

Hi Colin, is the cigarette(2:20) mandatory? ;) I'm a non smoker.