Design
- Thread starter EagleEye
- Start date
Aerofoam
Super Member
- Joined
- Dec 2, 2020
- Messages
- 1,445
- Location
- S. Az.
- Aircraft
- Pteradactyl, AC 503, Dominator, too many UAVs
- Total Flight Time
- Over 3k....(From the ground !)
I don't think many people are scratch building gyros anymore, there may be older threads, but I have not seen much on actual design and building anything that isn't a kit, or established design.
Last edited:
- Joined
- Oct 30, 2003
- Messages
- 18,450
- Location
- Santa Maria, California
- Aircraft
- Givens Predator
- Total Flight Time
- 2600+ in rotorcraft
I have learned a great deal on the Rotary Wing Forum about design, building and safety of gyroplanes.
I am not an aerospace engineer.
I cannot answer your questions or debate your theories if I don’t know what they are.
If you have specific questions; please articulate them Ziad Khan.
As an aerospace engineer you should have learned how to do that.
If you ask good questions you may get good answers.
I am not an aerospace engineer.
I cannot answer your questions or debate your theories if I don’t know what they are.
If you have specific questions; please articulate them Ziad Khan.
As an aerospace engineer you should have learned how to do that.
If you ask good questions you may get good answers.
GyroChuck
Gyro's are more fun
- Joined
- Oct 30, 2003
- Messages
- 4,083
- Location
- Naperville, IL
- Aircraft
- SnoBird Tandem Gyro, Robinson R-22, Mosquito XE-285, Assorted Fixed Wing
- Total Flight Time
- 2400
As I recall there used to be quite a few issues about design on the old Forum. Too bad it is no longer available.
GyrOZprey
Aussie in Kansas.
- Joined
- Aug 8, 2011
- Messages
- 3,603
- Location
- Whitewater KS
- Aircraft
- Butterfly Aurora N5560Z / Titanium Explorer N456TE & N488TE/ - trained in MTOsport 446QT/488FB
- Total Flight Time
- 1061
WHAT??? ...I thought the "old-forum" - was preserved here in the archives!!
I know the search-engine/ feature here is worthless!
There ARE a LOT of forums and topics here now.... it should be doable to a determined scroller to find old threads on designs!
Aerofoam
Super Member
- Joined
- Dec 2, 2020
- Messages
- 1,445
- Location
- S. Az.
- Aircraft
- Pteradactyl, AC 503, Dominator, too many UAVs
- Total Flight Time
- Over 3k....(From the ground !)
I am on a couple of forums with this format and the search is definitely almost useless.
Unfortunately, "Gargle's" hijacking of the internet has also rendered general searches almost useless too.....
unless you want 10 pages of ads for things with one of the search words included.....
Maybe as we find some lost threads, they could be added to a "Sticky" in a "Design" section, so we can actually find them....
Unfortunately, "Gargle's" hijacking of the internet has also rendered general searches almost useless too.....
unless you want 10 pages of ads for things with one of the search words included.....
Maybe as we find some lost threads, they could be added to a "Sticky" in a "Design" section, so we can actually find them....
GyroChuck
Gyro's are more fun
- Joined
- Oct 30, 2003
- Messages
- 4,083
- Location
- Naperville, IL
- Aircraft
- SnoBird Tandem Gyro, Robinson R-22, Mosquito XE-285, Assorted Fixed Wing
- Total Flight Time
- 2400
Is this something you are looking for?
GyroChuck
Gyro's are more fun
- Joined
- Oct 30, 2003
- Messages
- 4,083
- Location
- Naperville, IL
- Aircraft
- SnoBird Tandem Gyro, Robinson R-22, Mosquito XE-285, Assorted Fixed Wing
- Total Flight Time
- 2400
Here is two from the Old Forum. I did a search for Craig Wall and came up with nothing. When ever I found something interesting on the older forum I would save it to my computer.
I am making RC scaled down model of AS350 b3 heli... I have worked out many things in my head and currently working on its MGB but one thing i am stuck with is that how to vary tail rotor pitch to catter for the torque variation in main rotor. Electric motor as a tail rotor via electronic gyro is an option but I want it to be close to original design ( plus save the power ). As an aerospace engineer i have passed papers(until now i havnt seen any practical use of even the Cl (coefficent of lift) what to say of the Thermodynamics and compressible flow
). What i am doing is what I have been doing since childhood.
Aerofoam
Super Member
- Joined
- Dec 2, 2020
- Messages
- 1,445
- Location
- S. Az.
- Aircraft
- Pteradactyl, AC 503, Dominator, too many UAVs
- Total Flight Time
- Over 3k....(From the ground !)
Early RC heli's were almost un-flyable due to manual controls, the 80's saw the introduction of "rate gyros" that dampened the yaw very significantly, but they do tend to drift a bit.I am making RC scaled down model of AS350 b3 heli... I have worked out many things in my head and currently working on its MGB but one thing i am stuck with is that how to vary tail rotor pitch to catter for the torque variation in main rotor. Electric motor as a tail rotor via electronic gyro is an option but I want it to be close to original design ( plus save the power ). As an aerospace engineer i have passed papers(until now i havnt seen any practical use of even the Cl (coefficent of lift) what to say of the Thermodynamics and compressible flow
Learning to fly a manual RC heli involved crashing about $10,000.00 worth of equipment before you could actually fly without crashing....
the rate gyro improved that greatly. By the early 2000's E- helis with gyros on all channels made flying more accessible for a lot less $
Simulators changed the game, you can crash pixels all day with no cost.
If I were you, I would think about buying a working heli core (There are MANY) and building your Bell around it.
No point in re-inventing the wheel unless you are doing something completely different.
There are already solutions to all your problems.....
wolfy
Gold Supporter
AS350 is not a Bell
AS=Aerospatiale, is the original manufacturer now I think bought out by Eurocopter or Airbus.
I also started flying RC helio without gyro, very very difficult.
wolfy
AS=Aerospatiale, is the original manufacturer now I think bought out by Eurocopter or Airbus.
I also started flying RC helio without gyro, very very difficult.
wolfy
Deskpilot
Newbie
I'm with you Eagle. I have a part fantasy, part technical question to ask. Imagine a 4 blade set in which the blades cannot flex up nor down(fantasy?}. Now take another set that will rotate in the opposite direction and place it on the same vernicle axis to form contra rotational pair. How close can they be to each other so that the lower set does not cause the upper set to fail producing lift?(technical). Anybody?
How to Prepare the CAD for Simulating Rotating Zones | SimScale
For the simulation of rotating parts, one needs to prepare the CAD. This article describes everything that needs to be done in advance.
www.simscale.com
when there is rotation there will be no flex due to centrifugal force regidity. you can simlate it and assistant on the site are very helpful
WaspAir
Supreme Allied Gyro CFI
- Joined
- Oct 21, 2006
- Messages
- 7,271
- Location
- Colorado front range
- Aircraft
- Bell 47G-3B-1, A&S 18A, Phoebus C, SGS 1-26A, etc.
- Total Flight Time
- rather a lot
Dream on. This is from a NACA film about 1955 from the rotorhead of a Sikorsky S-56, I think. Sorry about the German - couldn't find the English version. Rotate the image 90 degrees to see the behavior.
WaspAir
Supreme Allied Gyro CFI
- Joined
- Oct 21, 2006
- Messages
- 7,271
- Location
- Colorado front range
- Aircraft
- Bell 47G-3B-1, A&S 18A, Phoebus C, SGS 1-26A, etc.
- Total Flight Time
- rather a lot
Here's another. Watch how the tip dances.
Doug Riley
Platinum Member
- Joined
- Jan 11, 2004
- Messages
- 7,256
The tips look like a section of the Tacoma Narrows suspension bridge in a breeze.
WaspAir
Supreme Allied Gyro CFI
- Joined
- Oct 21, 2006
- Messages
- 7,271
- Location
- Colorado front range
- Aircraft
- Bell 47G-3B-1, A&S 18A, Phoebus C, SGS 1-26A, etc.
- Total Flight Time
- rather a lot
Here's one on a gyro - check the slow-motion around 1:28, with a scale shown for magnitude of divergence
