Gliders > Slope Soaring

Kostez

<< < (5/8) > >>

Brian:

--- Quote from: "rasemote" ---
--- Quote from: "Brian" ---Hi Fred,
I am just trying to explore this subject a little bit more - for me and for other pilots that have an interest.

By static moment do you mean tail plane position relative to wing cord - ie; tail moment ??. If so do they have longer than normal or shorter than normal gliders.

So the Kostez at 60g/dm\2 plus is 'outside' the normal wing loading for VTPR. I know it is big and that weight does not scale up pro-rata with size.

Brian
--- End quote ---


hello
My fuselage at the exit of the mould made 1500 gr
 for simple fact my kostez for the first flight(theft) made 7.5 for 4M
 (more the glider is heavy more it is fragile)
emplanture 480 mm salmon 300
Stab emplanture 300 salmon 190

The principle of the kostez is its key of wing and its central girder if it is to respect your serat glider at the level of your piloting to see the Magazine MRA thierry
--- End quote ---


Hello Thierry,
Merci !
Wing root cord ;480mm wing tip 300 !
Tailplane root cord 300 - tip cord 190 !  ??
(more the glider is heavy more it is fragile) - touche .
The Kostez is beautiful - tres beau ! but a bit too big for me to handle.
La femme petite pour moi - no big mamma !!
Bonne nuit .

Brian

Fred:
Hey Brian,

Nice translation  :lol:

Regarding the size of these gliders, you have to keep in mind that to handle, it is not like a scale glider the same size.
Fuselage width is about 10cm at the max, and weight is less than half!
Big, but easy to handle at the slope for the launch.
You can see a video of the Kostez being launched alone, at walking pace.

But, transportation in / out the slope can be a pain alright!

Brian:
Hi Fred,
It is as you said transport- carrying up the slope if it is a long walk etc.
Yes I saw the vid,, of the launches.
The wind was not too strong.
I find in strong winds the 4m+ models are a handful to launch while on your own.
I am going for a 3m experiment.
F3A on the slope !!

Brian

JohnPearson:
Hi Fred,

Here is one of test tailplanes completed, foam with balsa skin, just need to cut a section off for the rudder movement, hopefully I will get the other completed tomorrow, just needs balsa skin applied.



Biggest tailplanes I ever made, 1/2 m each  :?:

johnp

billscottni:
Nice job John  :clap:

Navigation

[0] Message Index

[#] Next page

[*] Previous page