Ole Man Earl said...
Does anyone know what angle is reasonable for a small UAV climbing to waypoint altitude ?
Do you mean angle of attack or angle of climb?
Angle of attack will be negative in climb for the quad, positive for the wing. 10 degrees sounds reasonable to me but the only way to know will be to observe the telemetry while flying at various attitudes. Angle of climb can vary greatly depending on wind and depends heavily upon thrust to weight ratio.
I think I should calculate ROC (rate of climb) and not worry about angle. The ROC or (ROD)will determine the elevator and throttle settings ?
Things are starting to get komplecated !
I agree, control ROC. Airspeed is controlled with elevator, altitude is controlled by throttle. So set the elevator so that it flies at a reasonable speed then all you have to do is change throttle to ascend or descend. If the thrust-line intersects the CG no elevator correction should be needed when throttling up or down.
The Flying Wing UAV is coming right along with the prop software. I hope to have it flying for the June conference !
The wing is a 'foamie' I am building with carbon fiber reinforcing rods in the wing which is a 'step' design.
I need to find someone in ABQ area who is good at covering models with a 'monocote' type stuff. That's something I don't think I can do too well. BTW, the wing is 48" wingspan. Hope it will lift all the equipment.
I could use some help with the 'Nav' part of the software is anyone would like to help ! All the sensors are working well now.
Earl
It looks bigger than 48" in the picture, what kind of plane is it?
An alternative to film covering is using colored tape. I don't know what the tape is called but it is commonly used on EPP foam planes, it is 2" wide and very lightweight - similar to packaging tape.
The wing is a 'foamie' that I am building. You get the foam board at WalMart in arts and crafts. Now here is a VERY important part no one told me...Ya gotta take the paper off both sides of the foam board using a product called Awsome ! It disolves the glue holding the paper to the foam. Now my wing weighs 123g (4.3 oz) as opposed to 509g (over a pound) Now we can carry more sensors !! yea...
BTW it is 62" wingspan...
Kind of doing it 'on the fly' so to speak. It is developing as I go. If it flys well for a UAV I will publish plans. The good thing is the wing only costs about $20 to build. So if ya crash it, just have a spare ready ! Here is a pic from today. 5-23-09
The wings are moving along. The white/black one flew about 5 times now. Crashed 5 times ! Operator error. Gotta learn to fly or let the autopilot do the flying !
The pink B2 is 82" and will be big enough to hold and carry all electronics.
Earl
wow, amazing. I'm just trying to build my own overlay-circuit, but i can't really handle it.
Attached is my schematics, how i built it, but it doesn't work! The screen just shows nothing!
I#m not shure about the connection to the prop, because in the OSD-Files-Schematics, there is always Pin 0,1 and 2 showed!
Can someone give me a short help? Is there maybe a version of the OSD-Program which doesn't use an GPS- or something-else-data, just to output some text?
As in this (http://forums.parallax.com/forums/default.aspx?f=25&p=2&m=319580#m364032) thread proposed, i connected now the CSync-Pin instead of the VSync-Pin but the monitor still is black.
I've got some questions:
1. In the HITT_Video_Overlay_012.spin the schematics show Pin 0-3 used, but in the schematics.pdf, there are the Pins 16-19 and 22 used! Could that be the problem?
2. How does the program behave when there is no input-video-signal?
3. I use the Overlay_test_Display.spin for testing, because it has no GPS and other stuff in it. Is there a chance to change it to PAL?
Comments
Do you mean angle of attack or angle of climb?
Angle of attack will be negative in climb for the quad, positive for the wing. 10 degrees sounds reasonable to me but the only way to know will be to observe the telemetry while flying at various attitudes. Angle of climb can vary greatly depending on wind and depends heavily upon thrust to weight ratio.
Rich H
Things are starting to get komplecated !
Rich H
The wing is a 'foamie' I am building with carbon fiber reinforcing rods in the wing which is a 'step' design.
I need to find someone in ABQ area who is good at covering models with a 'monocote' type stuff. That's something I don't think I can do too well. BTW, the wing is 48" wingspan. Hope it will lift all the equipment.
I could use some help with the 'Nav' part of the software is anyone would like to help ! All the sensors are working well now.
Earl
An alternative to film covering is using colored tape. I don't know what the tape is called but it is commonly used on EPP foam planes, it is 2" wide and very lightweight - similar to packaging tape.
This stuff
Rich H
BTW it is 62" wingspan...
Rich H
Post Edited (Ole Man Earl) : 5/31/2009 2:34:31 AM GMT
The pink B2 is 82" and will be big enough to hold and carry all electronics.
Earl
Attached is my schematics, how i built it, but it doesn't work! The screen just shows nothing!
I#m not shure about the connection to the prop, because in the OSD-Files-Schematics, there is always Pin 0,1 and 2 showed!
Can someone give me a short help? Is there maybe a version of the OSD-Program which doesn't use an GPS- or something-else-data, just to output some text?
Thanks for your help!
Propwell
Earl
As in this (http://forums.parallax.com/forums/default.aspx?f=25&p=2&m=319580#m364032) thread proposed, i connected now the CSync-Pin instead of the VSync-Pin but the monitor still is black.
I've got some questions:
1. In the HITT_Video_Overlay_012.spin the schematics show Pin 0-3 used, but in the schematics.pdf, there are the Pins 16-19 and 22 used! Could that be the problem?
2. How does the program behave when there is no input-video-signal?
3. I use the Overlay_test_Display.spin for testing, because it has no GPS and other stuff in it. Is there a chance to change it to PAL?
Thank you alls!
Very helpful.
Thank you,
Peter.