incredible weight in flying wing UAVs
incredible weight in flying wing UAVs
(OP)
Hello,
I have found a flying wing uav with incredible flight characteristics for my experience.
7Kg for a 1400mm and 160km range (inspector 301)
3.2kg for 1320mm (deserthawk)
I used to fly RC airplanes and it is dificult to imagine to load with 7kg such small aircraft!
My question is this:
How can i start to calculate some basic flight characteristics for a flying wing?
- cruise speed vs airplane weight
- drag and vs airplane weight
in order to be able to calculate motor power, propeller, flight time...
Are there any simple software or excel sheet?
Thanks
Jose Luis
I have found a flying wing uav with incredible flight characteristics for my experience.
7Kg for a 1400mm and 160km range (inspector 301)
3.2kg for 1320mm (deserthawk)
I used to fly RC airplanes and it is dificult to imagine to load with 7kg such small aircraft!
My question is this:
How can i start to calculate some basic flight characteristics for a flying wing?
- cruise speed vs airplane weight
- drag and vs airplane weight
in order to be able to calculate motor power, propeller, flight time...
Are there any simple software or excel sheet?
Thanks
Jose Luis





RE: incredible weight in flying wing UAVs
http://eng.aerocon.ru/inspector/inspector301/
The Desert Hawk has a near-rectangular planform, with an area of 0.325m^2, giving a wing loading of about 97 N/m^2 or 2.0 lb/ft^2.
Both have high wing loadings, therefore high stall speeds, compared to regular model aircraft. The Inspector 301 requires a catapault to launch it, whereas the Desert Hawk is hand-launched. The Inspector 301 is not as remarkable as you seem to think.
This site discusses the design of model aircraft; the link is to a calculator for wing loading and stall speed.
http://adamone.rchomepage.com/design.htm#calculate
RE: incredible weight in flying wing UAVs
includes a file that calculates the performance of single propeller aircraft using analysis developed by NACA in the 20s and 30s. It runs on Smath, also available from that site, a free engineering calculation package.
Cheers
Greg Locock
New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?
RE: incredible weight in flying wing UAVs
You can use the XFLR5 software to determinate some basic flight caracteristics for a flying wing but if you want to do some more serious you have to keep in mind much more aerodynamics details if you want to make a controlled flight for your uav.
See you