RE: Long lasting gas powered Sailplane  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       



All Forums >> RC Airplanes >> UAV's and Drones >> RE: Long lasting gas powered Sailplane
Page: <<   < prev  1 [2]

Login
Message << Older Topic   Newer Topic >>
RE: Long lasting gas powered Sailplane - 1/20/2008 7:29:50 PM   
Rcpilot


 

Posts: 6372
Joined: 3/20/2002
From: Arvada, CO, USA
Status: offline
quote:

ORIGINAL: wws2010

Now what airframe should I use with this rewired motor and will it be able to carry the payload I need it to? Also is that 3 hours of mixed flying or full throttle moving. I also kind of need it to have a very long range.


The airframe is up to you.

Instead of asking lots of vague questions and being frustrated with the answers you're getting--start reading. Go to rccrawler and read the articles on rewinding motors. I don't know if you're going to need a 180 or a 480 size motor. I don't know if you need to wind it to 10 turns or 97 turns. That depends on what airframe you have--what the weight is--how long you want to fly it--what battery voltage you want to work with--and a hundred other variables.

The point I was trying to make is that if you want something reliable that will fly for a long time--then forget about the glow engines and fuel tanks. Use electric.

What you do with that suggestion is up to you. I've already given you plenty of information. You should be reading up on how to rewind motors. You should be investigating gliders with low wing loading and fuselages that are wide enough to carry your camera equipment.

_____________________________

Airplanes have expiration dates. It's just not printed on them.
I'm not really an airplane pilot; but I did stay at a Holiday In Express last night.

The artist formerly known as Rcpilet.

(in reply to wws2010)
       Post #: 26

RE: Long lasting gas powered Sailplane - 1/20/2008 7:52:18 PM   
BMatthews



Posts: 8749
Joined: 10/4/2002
From: Burnaby, BC, CANADA
Status: offline 		I have to agree that this has come around full circle and you're basically asking us to design the model and systems for you. It's also way beyond the scope of the glider section so I have moved it over here to the UAV forum.

Best of luck with the project but it seems like you have a lot to learn before you even figure out the basics for such a project. I'd suggest you back off and start with a more simple goal or perhaps only study one phase of the project like the stability and guidance system for such a project.

If you're set on doing the whole airplane and you want to make it electric then search for some of the electric model performance calculators that describe how much power you need to fly in various modes. At a start you'll need that to pick your payload and then work up from there. There's a lot of experience and aerodynamics knowledge needed for such an undertaking if this is all new to you. It's just not something you can ask for on forums like this since it would require us to type a book for you.

Instead of complicating the project with long range and distance why not stick with a simple takeoff, out and back scenario that can be handled with only about 5 minutes of flying time. The challenges are the same for the model and guidance systems but you avoid the whole duration thing. If I know by teachers I know that they appreciate a really good job on a simpler goal than a poor sketchy job on a really big goal that can't be adequitely supported in a short frame of time. The KISS principle will aid you. Go for a really deep and well supported effort on only one or two aspects rather than complicating the issue with the full meal deal.


_____________________________

Bruce-
Proudly wasting balsa since 1965.

Free Flighters go that extra mile........

(in reply to Rcpilot)
       Post #: 27

RE: Long lasting gas powered Sailplane - 1/21/2008 5:55:38 PM   
wws2010


 

Posts: 94
Joined: 8/18/2007
From: SunlandCA, USA
Status: offline 		this is not even close to my first model and it is to carry two small wireless cameras as stated early and i want something that will fly for a long time and get a long range.

(in reply to Tall Paul)
       Post #: 28

RE: Long lasting gas powered Sailplane - 1/22/2008 2:13:09 AM   
wws2010


 

Posts: 94
Joined: 8/18/2007
From: SunlandCA, USA
Status: offline 		oh this is far from my first model and it was clear that im gonna use this for operating cameras over an area for a long time

(in reply to Tall Paul)
       Post #: 29

Page:   <<   < prev  1 [2]
All Forums >> RC Airplanes >> UAV's and Drones >> RE: Long lasting gas powered Sailplane
Page: <<   < prev  1 [2]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

0.750RCU1