- Blog Posts
- Discussions (8)
- Photos
- Photo Albums
- Videos
mo fakahany's Discussions
Self-retrieving High Altitude Experimental Glider
check out this link: http://translate.google.com/translate?client how they insulated their stuff and how they tested everything with dry ice
Tagged: glider, altitude, High, UAV, Balloon
Replied Nov. 20, 2009
Self-retrieving High Altitude Experimental Glider
Hi Doug, Things are clearer now! Now we are looking for a design that has: 1.gliding ratio of 7:1 -10:1 (guess that is more than enough to reach the target and then descent in circles afterwards) 2.W…
Tagged: glider, altitude, High, UAV, Balloon
Replied Nov. 20, 2009
Self-retrieving High Altitude Experimental Glider
what you are saying makes sense to me but check the second paragraph and graph here: http://www.members.shaw.ca/sonde/digest_2.ht clue why the readings are high?
Tagged: glider, altitude, High, UAV, Balloon
Replied Nov. 20, 2009
mo fakahany's Page
Latest Activity
Going back a post or two, mentioned was the drifting or jet streams issues.
Is it not possible to have written in to your program, a function that releases the balloon catch at?
a) Your desired height using your altitude sensor.
b) A calculated,…
I found some interesting articles relating to this subject. I too am in design stages of high altitude flyer, which is dropped from a weather balloon. My interests are at a higher altitude, from when the helium weather balloon explodes, maybe 90,000…
One of Yahoo discussion forum on high altitude ballooning is here
Hi Mo ,
looking around for more info on the subject , found this project site with projects in 2008 site which i thought might be useful for you. click here and look @ menu on the left for more details. Solution for cold temp failure is here
Mission…
Assuming this is a modification of an existing weather balloon payload, the data systems are already in place. Image data would be more of a challenge, as the current baud rate is quite probably insufficient.
One way to extend range would be to cha…
Thanks Gatti for the explanation, i take your word for it , yes I agree it must be more of a regulatory challenge after reading this story, I got carried away by the topic head line :).
I am almost sure that any decent high altitude( did you mean 15…
Morli,
Interesting responses - but easily answered.
Initially I proposed the space shuttle design as the example of a high altitude recovery-oriented airframe, but let's by honest, the mission of the recovery is to slow down and reduce glide slope,…
I might start with a standard rocket kit.
You would get a fuselage, a nosecone, and a parachute.
Add a pair of short dihedral wings, and control surfaces.
If your payload weight is always the same, You can probably fix your airspeed by using fixed…
glider with clipped wings :) looks good
@ Gary , What about small solar panel or small wind mill with dynamo etc to power mini/micro heater for electronic & bat bay ? is it practical ?
@ gati,
That was interesting to read and I see some merits to it with my very limited knowledge of such project. There are however few things poped up in my mind, no disrespect but both your example( rocket/missile and Tom's( bom) were never expecte…
Another good platform to compare to would be the small diameter bomb...it is a long-range glide weapon.
If your airspeed is slowing than wind speed; then your glide-slope doesn't matter.
Presumably you care about being able to operate as many days out of the year as possible; that means incorporating the largest possible performance envelope.
Yours…
Now we are more in agreement.
Nice find on the flutter video. Always scared me to see that. Flutter is often catastrophic.
On item 5 I did not mean to imply that you would not want elevator control. I certainly would. I just wanted to point out th…
check out this link:
http://translate.google.com/translate?client=tmpg&hl=en&u=http%3A%2F%2Fteslabs.com%2Fmeteotek08%2F&langpair=ca%7Cen
see how they insulated there stuff and how they tested everything with dry ice
Hi Doug,
Things are clearer now!
Now we are looking for a design that has:
1.gliding ratio of 7:1 -10:1 (guess that is more than enough to reach the target and then descent in circles afterwards)
2.Withstands flutter on the wings, like this one you…
Their plane probably attempted to change pitch too fast, thats why there were G's.
Please also note, their glider "Cruise airspeed was 230 kph (125 kts) or more." (fly4)
and
"The glider's true air speed was only a little above the wind speed," (fly…
Comment Wall
- No comments yet!
© 2010 Created by Chris Anderson
