PPRuNe Forums - Search Results
PPRuNe Forums

Go Back  PPRuNe Forums > Search Forums
Reload this Page >

Search Results

Register
FAQ
Calendar
Wikiposts
Today's Posts
Search
Vendor Directory
 
Page 1 of 2
1
2
Search: Posts Made By: Jiff
Showing results 1 to 35 of 54
Search took 0.01 seconds.
Forum: Rotorheads
12th Jun 2008, 18:02
Replies: 5
Views: 860
Posted By Jiff

Impressive

Extremely impressive in my opinion.

It would be interesting to know exactly how the AFCS dose this.

1. Either changing the gain or other parameters associated with that axis, i.e. roll as a...
Forum: Rotorheads
26th Jul 2007, 07:06
Replies: 156
Views: 20,905
Posted By Jiff

Cool Deemar, I do not agree with you and your pic...

Deemar,

I do not agree with you and your pic did not come out.


Nick Lappos,

My force diagram will be posted here within two days.

Jiff
Forum: Rotorheads
24th Jul 2007, 07:42
Replies: 156
Views: 20,905
Posted By Jiff

Cool Dave Jackson, No Dave Jackson I did not...

Dave Jackson,

No Dave Jackson I did not invoke the lord I was responding to Nick Lappos
"Lord, save us from this crap!”


Nick Lappos,

There are mpegs proving that a similar concept works...
Forum: Rotorheads
23rd Jul 2007, 17:16
Replies: 156
Views: 20,905
Posted By Jiff

Cool Waspy 77 "If another force acts too", seems...

Waspy 77

"If another force acts too", seems to work OK on the flat hard surface and as a pendulum.........


I feel that the Thornson Inertial Engine produces thrust by dealing with the forces...
Forum: Rotorheads
23rd Jul 2007, 11:41
Replies: 156
Views: 20,905
Posted By Jiff

Cool Vorticey, Congratulations !!!!!!!!, I am yet...

Vorticey,

Congratulations !!!!!!!!, I am yet to build a model, however I am thrilled to bits that yours worked.

I have spent some time refining the design and feel there is a solution to the...
Forum: Rotorheads
21st Jul 2007, 19:14
Replies: 156
Views: 20,905
Posted By Jiff

Cool Oh the complexity of a force...

Oh the complexity of a force diagram..................
Forum: Rotorheads
19th Jul 2007, 10:46
Replies: 156
Views: 20,905
Posted By Jiff

Cool Still waiting.................

Still waiting.................
Forum: Rotorheads
18th Jul 2007, 18:37
Replies: 156
Views: 20,905
Posted By Jiff

Cool So then gentlemen, no force diagram...

So then gentlemen, no force diagram yet...............
Forum: Rotorheads
18th Jul 2007, 10:37
Replies: 156
Views: 20,905
Posted By Jiff

Cool IFMU, Could not agree more, just one teeny...

IFMU,

Could not agree more, just one teeny weenie test that involves 2, 4, or eight electric motors (Waspy77 that's were the torque comes from).

If any one asks nicely I will even publish a...
Forum: Rotorheads
16th Jul 2007, 08:59
Replies: 156
Views: 20,905
Posted By Jiff

Cool I feel this technology would work well for STOL...

I feel this technology would work well for STOL and VTOL applications however there are many other applications.

With regard to the analysis lets remember that there are analytical packages that...
Forum: Rotorheads
14th Jul 2007, 09:04
Replies: 156
Views: 20,905
Posted By Jiff

Cool Mr Lappos, I have not had the opportunity to...

Mr Lappos,

I have not had the opportunity to study the superb analisis which has been carried out on this theory.
To me the theory seems extremley simple and if we are not careful some one may...
Forum: Rotorheads
12th Jul 2007, 17:03
Replies: 156
Views: 20,905
Posted By Jiff

Cool Deemar, If looking at a single reaction...

Deemar,

If looking at a single reaction weight your argument as stated in point #2 holds water and the vibration would be extreme for a single reaction weight.
Also with a single reaction weight...
Forum: Rotorheads
12th Jul 2007, 10:34
Replies: 156
Views: 20,905
Posted By Jiff

Cool Nick, After reviewing the force diagram I...

Nick,

After reviewing the force diagram I feel my first claim of 80% to 90% efficency is inacurate, 50% to 60% is realistic.

However you did not indicate that the rock moves back and forth, you...
Forum: Rotorheads
12th Jul 2007, 10:15
Replies: 156
Views: 20,905
Posted By Jiff

Cool Nick, Assuming that the boy dose not let go of...

Nick,
Assuming that the boy dose not let go of the rock but moves the rock along the centre line of the boat in an arc, then theoretically the boat will accelerate forward while the rock is...
Forum: Rotorheads
12th Jul 2007, 07:49
Replies: 156
Views: 20,905
Posted By Jiff

Apples

Ouch ouch ouch

Personally I never really knew Newton however I feel I have a reasonable understanding of something that flat fith lots of flashing lights.

How about a force, phase...
Forum: Rotorheads
11th Jul 2007, 20:09
Replies: 156
Views: 20,905
Posted By Jiff

Cool 212 man, So which technical term was in the...

212 man,

So which technical term was in the wrong sence?.

Ever understand the term dry sarcasm.....

Demar

I still do not agree with Nick's analysis however, I would like to know your...
Forum: Rotorheads
10th Jul 2007, 14:11
Replies: 156
Views: 20,905
Posted By Jiff

Forget, "The primary characteristic of...

Forget,



"The primary characteristic of the Dean system is that it is a self-contained propulsion system not requiring the loss of mass."

Well this would also apply to a propellor or a rotor...
Forum: Rotorheads
9th Jul 2007, 19:23
Replies: 156
Views: 20,905
Posted By Jiff

Cool Nick, The device dose not utilise momentum,...

Nick,
The device dose not utilise momentum, during the first half of a rotation, force is created as a result of a torque reaction created by accelerating a given mass. As that mass reaches the half...
Forum: Rotorheads
6th Jul 2007, 10:19
Replies: 156
Views: 20,905
Posted By Jiff

Nick, I disagree with your opinion and I...

Nick,

I disagree with your opinion and I would ask you to take page one to the electrical shop put two servo motors face mounted in a plate ( beam ) then add two reaction weights accelerate them...
Forum: Rotorheads
4th Jul 2007, 22:18
Replies: 156
Views: 20,905
Posted By Jiff

HeloFan, The first page is the basic theory...

HeloFan,

The first page is the basic theory demonstrating how force is produced. Page two demonstrates how to produce a consistant constant force, however there is an unbalance between A and B...
Forum: Rotorheads
4th Jul 2007, 22:03
Replies: 156
Views: 20,905
Posted By Jiff

Dave Jackson, Hoping to build a model soon...

Dave Jackson,

Hoping to build a model soon and fly it.


Jiff
Forum: Rotorheads
3rd Jul 2007, 14:19
Replies: 156
Views: 20,905
Posted By Jiff

Cool Jed A1, No not yet but will probbably use three...

Jed A1,
No not yet but will probbably use three offset gears with a constant speed on the centre or one servo motor per reaction weight controlled by a PLC with a servo interface card ie SERCO's. ...
Forum: Rotorheads
2nd Jul 2007, 21:27
Replies: 156
Views: 20,905
Posted By Jiff

Heliport, I could not get it to work, can I...

Heliport,

I could not get it to work, can I send them to you directly?

Jiff
Forum: Rotorheads
2nd Jul 2007, 18:35
Replies: 156
Views: 20,905
Posted By Jiff

Cool Inertia Machine

http://i197.photobucket.com/albums/aa191/bartholume/Page1.jpg
http://i197.photobucket.com/albums/aa191/bartholume/page2.jpg
http://i197.photobucket.com/albums/aa191/bartholume/Page3.jpg
Rotor...
Forum: Rotorheads
29th Aug 2003, 08:38
Replies: 13
Views: 1,742
Posted By Jiff

To many politically correct W*****S out there...

To many politically correct W*****S out there with nothing better to do.
Leave the aircrew alone.

Jiff
Forum: Rotorheads
28th Aug 2003, 01:04
Replies: 417
Views: 142,330
Posted By Jiff

TC, Before you pile on the scorn to Whirly...

TC,

Before you pile on the scorn to Whirly stop and think for a moment................I to disagree with Wirly's second opinion but put yourself in a newbies shoes for a minute, you have just put...
Forum: Rotorheads
16th Aug 2003, 04:08
Replies: 338
Views: 127,513
Posted By Jiff

What type of flying work do you do? Instructing...

What type of flying work do you do?
Instructing on weekends (R22), R+D CH54B

What types(s) do you fly?
R22, 300C, Test engineer CH54B

http://www.htshelicopters.com/firefighting%202.bk3.jpg
...
Forum: Rotorheads
16th Aug 2003, 03:30
Replies: 21
Views: 3,255
Posted By Jiff

Griffo, If you don't mind me asking, what is...

Griffo,

If you don't mind me asking, what is your relationship with Erickson?

Jiff
Forum: Rotorheads
20th Jul 2003, 01:05
Replies: 2,408
Views: 1,122,544
Posted By Jiff

Helicopter Transport Services CH54B (Helitanker) ...

Helicopter Transport Services CH54B (Helitanker)
http://www.helicopterservice.com.au/photos/pprune/Resize%20of%20S64%2001.jpg

I thought you said the tracking was easy
...
Forum: Rotorheads
20th Jul 2003, 01:05
Replies: 5,672
Views: 4,596,266
Posted By Jiff

Helicopter Transport Services CH54B (Helitanker) ...

Helicopter Transport Services CH54B (Helitanker)
http://www.eacott.com.au/gallery/d/3444-1/S64+01a.jpg

I thought you said the tracking was easy
...
Forum: Rotorheads
17th Jul 2003, 03:44
Replies: 42
Views: 7,994
Posted By Jiff

It absolutely amazes me that there are people who...

It absolutely amazes me that there are people who contribute to this forum and believe that these two people are some kind of god.

If it was up to me the only thing I would let them take the...
Forum: Rotorheads
24th Apr 2003, 22:54
Replies: 4
Views: 1,409
Posted By Jiff

MSN This morning

Found This on www.msn.com this morning.

Secretary of Defense Donald Rumsfeld is gearing up for his next war—not with the Syrians or the North Koreans but with the hidebound generals of the U.S....
Forum: Rotorheads
11th Mar 2003, 21:58
Replies: 12
Views: 2,187
Posted By Jiff

I was nine (I think) and I will never forget...

I was nine (I think) and I will never forget watching TV and seeing probably the most awesome motorcycle race ever with Mr Sheene and Mr Roberts one lap ahead of the pack at Donnington in 77-79

My...
Forum: Rotorheads
6th Oct 2002, 18:19
Replies: 1,983
Views: 215,400
Posted By Jiff

R22 Governor improvements

I have just finished putting together an improved governor for an R22, it works in much the same way as the original governor but it is load sensitive, i.e. it monitors the position of the collective...
Forum: Rotorheads
6th Oct 2002, 18:19
Replies: 2,217
Views: 300,903
Posted By Jiff

R22 Governor improvements

I have just finished putting together an improved governor for an R22, it works in much the same way as the original governor but it is load sensitive, i.e. it monitors the position of the collective...
Showing results 1 to 35 of 54
 
Page 1 of 2
1
2


 
Forum Jump

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.