Pitot Tube IAS Airspeed Sensor For Futaba ... Very Cool !!!
06-17-2013, 01:57 PM
#101
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RE: Pitot Tube IAS Airspeed Sensor For Futaba ... Very Cool !!!
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06-19-2013, 11:54 AM
#103
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RE: Pitot Tube IAS Airspeed Sensor For Futaba ... Very Cool !!!
Today I successfully flew the STALD (airspeed monitor) designed by Jim Shima. It is a 900MHZ downlink that uses the Eagle Tree “Airspeed Microsensor V3†to capture airspeed. My test bed is a Cosmic Wind prop powered model.
When I turned into the wind for takeoff the STALD receiver verbally reported 5 to 7 mph while I was parked ready for takeoff. Liftoff speed was 28mph. Level cruise with Rossi 60 engine was 50mph. After approx 300ft dive it reported 70mph just as I pulled out. Even with just one flight I started to get very comfortable knowing what my airspeed was. I am very excited about the potential when used while flying heavy warbirds and jets.
Features:
Transmitter:
1. 900Mmhz
2. User programmable- set transmitter power out level
3. Set frequency hop channel
Receiver:
1. 900MHZ
2. Mounts with built in clip to your pants belt.
3. Speech output jack for earphone or speaker
4. Set Stall Alarm speed (receiver vibrates and reports “STALL,STALL,STALLâ€
5. Low speed(0-60mph) programmable call settings (2-15mph)
6. Medium speed(61-120mph) programmable call settings (5-50mph)
7. High speed(121-280mph) programmable call settings (5-50mph)
8. Set time in seconds between auto speed reports in low speed range (2sec to 4sec or off)
9. Flame out detector for turbine engine. Report is verbal “Flame Out, Flame Out, Flame Outâ€
10. Toggle for Medium/High Speed call outs, can OFF or Enabled.
There are some other settable technical parameters that I won’t cover here. Next I am going to package my unit in 2†dia. x 9†long fiber glass cylinder that will mount on the belly of my Boomerang Intro and will contain all the electronics, pitot and battery.
When I turned into the wind for takeoff the STALD receiver verbally reported 5 to 7 mph while I was parked ready for takeoff. Liftoff speed was 28mph. Level cruise with Rossi 60 engine was 50mph. After approx 300ft dive it reported 70mph just as I pulled out. Even with just one flight I started to get very comfortable knowing what my airspeed was. I am very excited about the potential when used while flying heavy warbirds and jets.
Features:
Transmitter:
1. 900Mmhz
2. User programmable- set transmitter power out level
3. Set frequency hop channel
Receiver:
1. 900MHZ
2. Mounts with built in clip to your pants belt.
3. Speech output jack for earphone or speaker
4. Set Stall Alarm speed (receiver vibrates and reports “STALL,STALL,STALLâ€
5. Low speed(0-60mph) programmable call settings (2-15mph)
6. Medium speed(61-120mph) programmable call settings (5-50mph)
7. High speed(121-280mph) programmable call settings (5-50mph)
8. Set time in seconds between auto speed reports in low speed range (2sec to 4sec or off)
9. Flame out detector for turbine engine. Report is verbal “Flame Out, Flame Out, Flame Outâ€
10. Toggle for Medium/High Speed call outs, can OFF or Enabled.
There are some other settable technical parameters that I won’t cover here. Next I am going to package my unit in 2†dia. x 9†long fiber glass cylinder that will mount on the belly of my Boomerang Intro and will contain all the electronics, pitot and battery.
02-25-2014, 06:07 PM
#104
With the CBelektroniks unit how does the voice airspeed call outs and warnings work on the 18MZ. Is it a function of the air speed unit. Does anyone know if the voice call outs work with the new Robbe/Futaba airspeed senor.
Thanks
David
Thanks
David
02-26-2014, 12:44 PM
#105
Hello David,
yes you will get voice announcements from the FSS-330 or FSS-460 sensor measurement data.
But the Futaba TX will convert our data into speech.
Alarm values are also set by the T18MZ , T14SG transmitter or the Robbe Telemetry box.
Also the management of the alarms is done by the TX.
Sensors on Sbus2 are not sending Alarm flags. We from CB Elektronics have no control over the Futaba Sbus2 alarm situation. That is Futaba´s software land.
You can set a minimum and maximum speed alarm value inside the Telemetry Box or in the T18MZ etc..
If you come below the minimum value you will get always the alarm. :-( This is disturbing me personaly
I gave Robbe Futaba already a hint to implement a alarm accepted switch/button.
Let´s see what the will provide in future software releases.
I would recommend a better workflow to you.
Define a Switch in the TX to Switch the voice annoncement on/off.
I switch on the speech announcement during the landing phase for example. This gives me the information in what direction the airspeed is going.
Up or down and I can give my jet a constand approach Speed at aprox 20% above the before tested stall speed.
Keeping this speed during your final with a normal decend rate it will give you nice landings!! Not to fast not to slow.
Very good for the retracts!! ;-)
If you have any question please feel free to contact me.
Under the follwing link you will find a press report from RCJI:
http://www.cb-elektronics.de/Index%20english.html
BR
Dirk CB Elektronics
Dirk
yes you will get voice announcements from the FSS-330 or FSS-460 sensor measurement data.
But the Futaba TX will convert our data into speech.
Alarm values are also set by the T18MZ , T14SG transmitter or the Robbe Telemetry box.
Also the management of the alarms is done by the TX.
Sensors on Sbus2 are not sending Alarm flags. We from CB Elektronics have no control over the Futaba Sbus2 alarm situation. That is Futaba´s software land.
You can set a minimum and maximum speed alarm value inside the Telemetry Box or in the T18MZ etc..
If you come below the minimum value you will get always the alarm. :-( This is disturbing me personaly
I gave Robbe Futaba already a hint to implement a alarm accepted switch/button.
Let´s see what the will provide in future software releases.
I would recommend a better workflow to you.
Define a Switch in the TX to Switch the voice annoncement on/off.
I switch on the speech announcement during the landing phase for example. This gives me the information in what direction the airspeed is going.
Up or down and I can give my jet a constand approach Speed at aprox 20% above the before tested stall speed.
Keeping this speed during your final with a normal decend rate it will give you nice landings!! Not to fast not to slow.
Very good for the retracts!! ;-)
If you have any question please feel free to contact me.
Under the follwing link you will find a press report from RCJI:
http://www.cb-elektronics.de/Index%20english.html
BR
Dirk CB Elektronics
Dirk
02-26-2014, 01:51 PM
#106
Dirk
Thanks for your very detailed reply. Your unit sounds very good and I will have to order one. Sounds like a must have for every jet especially the heavier scale jets.
David
Thanks for your very detailed reply. Your unit sounds very good and I will have to order one. Sounds like a must have for every jet especially the heavier scale jets.
David
01-04-2018, 08:31 AM
#107
This is an old thread, I realize, but currently I'm looking in to Futaba Airpseed pitostatic sensors too. Yes, from an aerodynamic perspective, AOA is a more accurate indicator of impending stall. But such an indicator is totally impractical for RC flying. First, the stall AOA will change depending on whether you have none, half, or full flaps. In fact, it's insidious because putting your flaps down effectively increases the AOA most likely regardless of what any AOA sensor for RC would report. Now, imagine you've just turned final and your AOA meter reports what you've learned is too high an AOA. How do you respond quickly to that information. You don't have time to process what that means. "Let's see now, too high AOA....lower the nose.....now coming in too hot....throttle back.....too late, I blew past my landing. Oh, duh". With just AOA reporting, you will get behind the plane fast. When I had Spektrum with airpspeed in a jet, I flew 70mph on downwind, apply half flaps & throttle back a tiny amount and wait for the drag. Turn base, usually around 60mph, turn final & apply full flaps, wait for the drag, throttle back a little more. When it hits 50mph, cut to idle, usually about 100 yards from the numbers. Then just ride it down. Since then, I moved away from Spektrum because of signal integrity problems, and Futaba doesn't market an airpseed sensor. Just GPS. I do use that in one jet but there is wind, and lag time that detracts.
01-04-2018, 08:35 AM
#108
This is an old thread, I realize, but currently I'm looking in to Futaba Airpseed pitostatic sensors too. Yes, from an aerodynamic perspective, AOA is a more accurate indicator of impending stall. But such an indicator is totally impractical for RC flying. First, the stall AOA will change depending on whether you have none, half, or full flaps. In fact, it's insidious because putting your flaps down effectively increases the AOA most likely regardless of what any AOA sensor for RC would report. Now, imagine you've just turned final and your AOA meter reports what you've learned is too high an AOA. How do you respond quickly to that information. You don't have time to process what that means. "Let's see now, too high AOA....lower the nose.....now coming in too hot....throttle back.....too late, I blew past my landing. Oh, duh". With just AOA reporting, you will get behind the plane fast. When I had Spektrum with airpspeed in a jet, I flew 70mph on downwind, apply half flaps & throttle back a tiny amount and wait for the drag. Turn base, usually around 60mph, turn final & apply full flaps, wait for the drag, throttle back a little more. When it hits 50mph, cut to idle, usually about 100 yards from the numbers. Then just ride it down. Since then, I moved away from Spektrum because of signal integrity problems, and Futaba doesn't market an airpseed sensor. Just GPS. I do use that in one jet but there is wind, and lag time that detracts.
01-04-2018, 09:16 AM
#111
Speed sensor
[QUOTE=dvcam99;11746599]Hello David,
yes you will get voice announcements from the FSS-330 or FSS-460 sensor measurement data.
But the Futaba TX will convert our data into speech.
Alarm values are also set by the T18MZ , T14SG transmitter or the Robbe Telemetry box.
Also the management of the alarms is done by the TX.
Dirk
Sensors on Sbus2 are not sending Alarm flags. We from CB Elektronics have no control over the Futaba Sbus2 alarm situation. That is Futaba´s software land.
You can set a minimum and maximum speed alarm value inside the Telemetry Box or in the T18MZ etc..
If you come below the minimum value you will get always the alarm. :-( This is disturbing me personaly
I gave Robbe Futaba already a hint to implement a alarm accepted switch/button.
Let´s see what the will provide in future software releases.
I would recommend a better workflow to you.
Define a Switch in the TX to Switch the voice annoncement on/off.
I switch on the speech announcement during the landing phase for example. This gives me the information in what direction the airspeed is going.
Up or down and I can give my jet a constand approach Speed at aprox 20% above the before tested stall speed.
Keeping this speed during your final with a normal decend rate it will give you nice landings!! Not to fast not to slow.
Very good for the retracts!! ;-)
If you have any question please feel free to contact me.
Under the follwing link you will find a press report from RCJI:
http://www.cb-elektronics.de/Index%20english.html
BR
Dirk CB Elektronics
Dirk:
I’m interested in purchasing a speed sensor for graupner telemetry, do you have a distributor in the United States?
yes you will get voice announcements from the FSS-330 or FSS-460 sensor measurement data.
But the Futaba TX will convert our data into speech.
Alarm values are also set by the T18MZ , T14SG transmitter or the Robbe Telemetry box.
Also the management of the alarms is done by the TX.
Dirk
Sensors on Sbus2 are not sending Alarm flags. We from CB Elektronics have no control over the Futaba Sbus2 alarm situation. That is Futaba´s software land.
You can set a minimum and maximum speed alarm value inside the Telemetry Box or in the T18MZ etc..
If you come below the minimum value you will get always the alarm. :-( This is disturbing me personaly
I gave Robbe Futaba already a hint to implement a alarm accepted switch/button.
Let´s see what the will provide in future software releases.
I would recommend a better workflow to you.
Define a Switch in the TX to Switch the voice annoncement on/off.
I switch on the speech announcement during the landing phase for example. This gives me the information in what direction the airspeed is going.
Up or down and I can give my jet a constand approach Speed at aprox 20% above the before tested stall speed.
Keeping this speed during your final with a normal decend rate it will give you nice landings!! Not to fast not to slow.
Very good for the retracts!! ;-)
If you have any question please feel free to contact me.
Under the follwing link you will find a press report from RCJI:
http://www.cb-elektronics.de/Index%20english.html
BR
Dirk CB Elektronics
Dirk:
I’m interested in purchasing a speed sensor for graupner telemetry, do you have a distributor in the United States?
01-04-2018, 10:47 AM
#112
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I have purchased many airspeed sensors from Dirk. It's easy fast and reliable. I use these on most of my planes. Great device.
The ASSI device from Carsten/Ultimate Jets is also great and you can set up indicator lights on the front of the nosegear to show when you are on the right approaching speed. The only drawback is that you need to set it up as KPH instead of MPH. It will also do auto-throttle..
You cant go wrong with either.
SteveK
The ASSI device from Carsten/Ultimate Jets is also great and you can set up indicator lights on the front of the nosegear to show when you are on the right approaching speed. The only drawback is that you need to set it up as KPH instead of MPH. It will also do auto-throttle..
You cant go wrong with either.
SteveK
01-04-2018, 01:22 PM
#114
You can configure it using a setup tool. Have a look at Ultimate Jets's homepage, there you will find some of the stuff. Also some info at Electronics for RC models
Thanks!
