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Search: Posts Made By: EchoTango
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Forum: Tech Log
27th Feb 2004, 05:53
Replies: 9
Views: 3,693
Posted By EchoTango

Seems to me that the glider will not be launching...

Seems to me that the glider will not be launching in a clean air flow if someone is standing immediately under, and slightly to one side of its flight path in a 10kt breeze ?

ET
Forum: Tech Log
3rd Sep 2003, 08:32
Replies: 13
Views: 1,847
Posted By EchoTango

I'm with Topbunk. Well, almost. (There are 5280...

I'm with Topbunk. Well, almost. (There are 5280 feet in a statute mile)

Another possibility is that your speed was not constant. GPS units have different methods of speed averaging to give an...
Forum: Tech Log
28th Apr 2003, 13:03
Replies: 5
Views: 1,249
Posted By EchoTango

The power output of a piston engine is...

The power output of a piston engine is proportional to the mass flow rate of air thru the engine (within typical operating conditions).

So Oxford Blue gave you the answer.

ET
Forum: Tech Log
24th Mar 2003, 02:21
Replies: 3
Views: 1,461
Posted By EchoTango

The aerodynamics of it are mostly beyond me, but...

The aerodynamics of it are mostly beyond me, but I note that the "lifting Line Theory (3D Wings)" section in

http://www.aeromech.usyd.edu.au/aero/contents.html

states that

"The span-wise...
Forum: Tech Log
22nd Mar 2003, 23:55
Replies: 3
Views: 1,461
Posted By EchoTango

Did you look at ...

Did you look at

http://www.aeromech.usyd.edu.au/aero/thinaero/thinaero.html

?

ET
Forum: Tech Log
22nd Mar 2003, 23:39
Replies: 15
Views: 3,260
Posted By EchoTango

The Star point is the Neutral, and is Ground BUT...

The Star point is the Neutral, and is Ground BUT ONLY when there is a balanced load over the three phases.

Any imbalance over the three phases will cause a current to flow to that Neutral.

So...
Forum: Tech Log
31st Mar 2002, 22:48
Replies: 10
Views: 1,400
Posted By EchoTango

From Bowditch - "American Practical Navigator"...

From Bowditch - "American Practical Navigator" Vol 1 1977 p 362.

Quote
The axis of the earth is undergoing a processional motion similar to that of a top spinning with its axis tilted. In about...
Forum: Tech Log
23rd Jan 2002, 13:20
Replies: 11
Views: 3,449
Posted By EchoTango

Post Keith Williams You are quite right. I was...

Keith Williams

You are quite right. I was simply nitpicking a very thorough answer.

ET
Forum: Tech Log
21st Jan 2002, 04:37
Replies: 11
Views: 3,449
Posted By EchoTango

Post Keith Williams The bit you missed was the...

Keith Williams

The bit you missed was the static line partially blocked, with the blockage affecting the airflow over the vent. Hornets do it with dobs of mud.. .Then you get unpredictable static...
Forum: Dunnunda, Godzone and the Pacific
13th Jan 2002, 03:28
Replies: 19
Views: 3,069
Posted By EchoTango

Post The C130 system is a very good one. It can take...

The C130 system is a very good one. It can take 20 tonnes of water. Set up time several hours. Needs about 500lb of permanent fittings in the aircraft - unnoticeable except for weight in normal...
Forum: Questions
11th Jan 2002, 00:14
Replies: 2
Views: 1,380
Posted By EchoTango

Post Dry bulb temperature is simply the air...

Dry bulb temperature is simply the air temperature. So it is OAT.
Wet Bulb temperature is the temperature attained by a thermometer wearing a wet sock.
The difference between the two is related to...
Forum: Tech Log
7th Nov 2001, 14:11
Replies: 12
Views: 4,158
Posted By EchoTango

Post I thought that Isopropanol was the common liquid...

I thought that Isopropanol was the common liquid for compasses and the like. It is in the family
Methanol
Ethanol
Propanol, Isopropanol
Butanol etc

It is an alcohol with a vapour pressure a...
Forum: Tech Log
6th Sep 2001, 02:41
Replies: 12
Views: 1,107
Posted By EchoTango

Post Thats rather basic. Vertical lift component =...

Thats rather basic.
Vertical lift component = weight. You maintain altitude.
Vertical lift component > weight. You go up.
Vertical lift component < weight. You go down.
Thats why you fiddle with...
Forum: Tech Log
22nd Jul 2001, 02:53
Replies: 8
Views: 31,390
Posted By EchoTango

Post See ...

See
http://www.pprune.org/cgibin/ultimatebb.cgi?ubb=get_topic&f=3&t=001387

ET
Showing results 1 to 14 of 14


 
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