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Search: Posts Made By: AirSpeed-RCU
Showing results 1 to 25 of 37
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Forum: Extreme Speed Prop Planes
09-21-2003, 10:29 PM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

RE: Airspeed indicator for $99

ckoerner

Excellent. These guys are great for what I want to do.

Thanks Very Much
Forum: Extreme Speed Prop Planes
09-18-2003, 09:25 PM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

RE: Airspeed indicator for $99

Thanks very much for the offer but I too am in the electronics industry and have access to CAD tools.

What do you mean by max for min.?
Forum: Extreme Speed Prop Planes
09-17-2003, 10:47 PM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

RE: Airspeed indicator for $99

The investment needed to start is substantial. So without the proper research and feed back I could turn this project into a $99 toy worth about $3000 or more(i.e not enough sales). The main reason...
Forum: Extreme Speed Prop Planes
09-03-2003, 01:23 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

I am definitely developing a unit. It's well on its way. The question is do I play with it or try to market it. Thats one of the reasons I'm here. I started this poll to see if enough people were...
Forum: Extreme Speed Prop Planes
09-02-2003, 03:49 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

The design includes a static port. The output of the sensor is the difference between 2 ports (pitot & static). It is not possible to get accurate air speed at different altitudes and barometric...
Forum: Extreme Speed Prop Planes
09-01-2003, 02:11 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

A static port is a must. A change in altitude of 500 ft is the equivalent change in pressure seen at aprox 80 mph.

The problem with the "Pilatus Porter" setup was probably due to the effect of air...
Forum: Extreme Speed Prop Planes
08-31-2003, 07:30 PM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

Good advice. Thats the first request for KPH, won't be too hard to implement. Altitude would have to be an add on feature due to the price of the sensor. I aim keep to the unit price at $99 as per...
Forum: Extreme Speed Prop Planes
08-31-2003, 12:52 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

I not sure yet how much ram will be available for data collection. That will be determined when I choose which micro I'm going to use. The length of time you'll be able to store will be adjustable...
Forum: Extreme Speed Prop Planes
08-28-2003, 02:26 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

I'm Back

Razor

Sorry about taking so long to reply, I've been away.

I'm not quite sure about the accuracy yet. I don't want to guess because the resolution of the pressure sensor is the most influential...
Forum: Extreme Speed Prop Planes
08-21-2003, 01:15 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

This could be achieved quite easily, the only thing required would be a second pitot. The pitot (still under development) will likely be a short brass tube conected to the unit via tubing.

Dansy
...
Forum: Extreme Speed Prop Planes
08-19-2003, 10:13 PM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

Dansy

Sorry about evading your question it wasn't intentional.

I have research all the components needed for the basic functions and have done some prototyping. I will continue to develop the...
Forum: Extreme Speed Prop Planes
08-19-2003, 01:10 PM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

Depends on the response I get. Including the " it should do this" replies. In other words suggestions are welcome.
Forum: Extreme Speed Prop Planes
08-19-2003, 02:34 AM
Replies: 34
Views: 3,697
Posted By AirSpeed-RCU

Airspeed indicator for $99

The unit will allow you to determine top air speed upon landing by visual display (led). A yet to be determined amount memory will be used to store airspeed data for later analysis on a PC....
Forum: Extreme Speed Prop Planes
08-16-2003, 02:41 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

phillybaby
Cool. External power for the unit will greatly reduce the price, size and weight.
The unit will rig (zero) itself every time its powered up.

MMallory, Phil and Chuck

The unit I...
Forum: Extreme Speed Prop Planes
08-13-2003, 03:23 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

Right you are. I found a few different sensors that use less power. Things are going good. I've found sensors that run on 3 to 10 volts @ 1.5ma.

The question now is, in order to reduce cost would...
Forum: Extreme Speed Prop Planes
08-06-2003, 03:48 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

Rudeboy

So far I've only been able to find this one that hit the bill.

Mluvara

Would you know how much the diameter of the pitot effects the sensed pressure? What is the minimum dia of...
Forum: Extreme Speed Prop Planes
08-06-2003, 03:26 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

What batteries to use ???

The sensor consumes a hefty 10 Vdc at 6mA. The processor on the other hand only consumes a max of 3 mA @ 5 Vdc. I need at least 10 volts.

That means about .08 watts consumption @ 10Vdc +2 -0. Can...
Forum: Extreme Speed Prop Planes
08-06-2003, 02:02 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

Forgot to mention that my unit will likely have an audible stall warning emmitted from the unit (in the aircraft) and enough memory to store some flight data.
Forum: Extreme Speed Prop Planes
08-06-2003, 01:54 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

Good idea, my son has asthma and there is a similar unit available to measure the max air flow he can produce. This helps determine what condition his lungs are in from day to day. The unit has no...
Forum: Extreme Speed Prop Planes
08-05-2003, 02:05 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

I appreciate the offer to beta test but I live in Canada. The cost of watch type batteries are high but if size and wieght are critical thats the way it'll be done.

Thanks
Forum: Extreme Speed Prop Planes
08-05-2003, 12:47 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

As far as price goes I haven't got that far yet. The micros are reasonable, the pressure sensors I'm not sure on but I think there relatively expensive. The most expensive parts will probably be the...
Forum: Extreme Speed Prop Planes
08-04-2003, 03:08 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

phillybaby

cool idea but sounds like it might be expensive to produce and would add drag.


sydclement

Super cool, although GPS will give you a lot more info ie alt, max speed, average speed...
Forum: Questions and Answers
08-03-2003, 05:00 AM
Replies: 13
Views: 804
Posted By AirSpeed-RCU

Real Time Air Speed Indicator

Short/long tone combs selected by you and loaded on the unit using a pc interface and a variable tone changing to beeping for airspeed.

The airspeed tones would have to be set after a few test...
Forum: Questions and Answers
08-03-2003, 04:08 AM
Replies: 13
Views: 804
Posted By AirSpeed-RCU

How about...

What if you had a small speaker on the ground and the capability to set various tones for different conditions?

As far as temp goes, tuning on the ground using engine temp never occurred to me...
Forum: Extreme Speed Prop Planes
08-03-2003, 03:51 AM
Replies: 50
Views: 3,558
Posted By AirSpeed-RCU

Real Time Air Speed or post flight

I've got a few posts out there asking what method of air speed indication people want. What I mean by that is, is real time indication critical or would reading a display in the aircraft after the...
Showing results 1 to 25 of 37
 
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