View Full Version : clocks and dials

26th November 2014, 20:01
hi all

What instruments are people fitting to light ssdr machines. Are you going with standard mechanical dial instruments, new fancy electronic stuff, or hang-glider type varios.

What do you actually need, other than altitude? And what have you found that works well?


Mike Cowlishaw
26th November 2014, 20:14
Airspeed is handy. Groundspeed is very useful.


26th November 2014, 21:00
Vario for me when flying the half pint. Brauniger IQ ONE. Worked fine. Keys nice and big for gloved hands. Airways Airsports at Darley Moor were very helpful.

26th November 2014, 21:14
I also use the iq one but also have an airspeed sensor that plugs into it.

Mick Broom
27th November 2014, 10:26
If its fixwing don't forget the humble piece of wool on the Lazair front strut, simple, cheap, reliable and light.
Amazing what information it gives after a bit of practice, speed, turbs, lift, turn and slip, anti stall.
Noise and vibration looks after the engine information
Anything else would spoil the view!!!

27th November 2014, 13:32
I use para-motor instrument deck. It serves as baggage bag also :) You can place what ever set of instruments you need, or want for a flight :)

Attached files http://cloudniner.co.uk/images/converted_files/139201=9912-2014-09-21-1183.jpg (http://cloudniner.co.uk/images/converted_files/139201=9912-2014-09-21-1183.jpg) http://cloudniner.co.uk/images/converted_files/139201=9913-2014-09-21-1184.jpg (http://cloudniner.co.uk/images/converted_files/139201=9913-2014-09-21-1184.jpg)

27th November 2014, 19:31
thanks guys, interesting stuff.

i'll have look at the Brauniger IQ.

john, how tough do you think the airspeed probe is for regular use?

mick, what have you been using (other than string) to set the carb up, and sort out engine temps, on your machine?

Mike Cowlishaw
27th November 2014, 20:21
If your aircraft is weightshift machine you don't need an airspeed indicator or probe (except for curiosity/checking). Your airspeed is set by the amount you push the bar out or pull it back.

27th November 2014, 21:57
I had the probe as well. It's not bad however I took it off after I got used to the feel of the wing and flew by using "the force".

Mick Broom
28th November 2014, 08:16
Same with fixed wing but speeds down to where the nose is pointing with less effort for old men.
This is backed up by the screaming from the struts for those who can still hear ;-)

Mick Broom
28th November 2014, 09:43
EGT is the way to go for setting up the engine with a rev counter for performance and level flight with some means of seeing what petrol is left in the tank and you have it basically covered.
Fortunately both these instruments are cheap, light and self contained
Anything else is down to individual requirements of the engine and your comfort level and while I will instrument things I am trying out or do not have a track record I remove them when I have a solution or confidence.
I find they can distract, add weigh, go wrong and don't help. Hands up how many pilots were watching the EGT when the engine seized last, admit it you looked after it started making noises.
If its a new plane experience its nice to have a airspeed indicator as you explore the stall. approach and so on but very quickly you get a feel for the plane and somewhere in the back of your head speed is sorted so you don't need the speedo but if the plane has a nasty habit of inverting near the stall and throwing all the toys out and you only fly on the wifes birthday then keep the speedo!!

28th November 2014, 10:07
The airspeed sensor does seem well built and accurate. I would however echo the views of Mike and Dom in that for a flexwing it's not really a necessity. I was curious as to the speed of my wing and a cheap sensor came up on ebay. I do still use it though, mainly because I've bought it so I may as well use it.

21st March 2015, 16:07
I have finally got around to installing something. As i'm from a microlight background rather than a paragliding etc, i've gone for some more familiar looking, the MGL airspeed and altimeter combined instrument.
So far it seems to work very well, and is lighter, smaller and cheaper than 2 mechanical gauges, and has the added bonus it logs flying time, so helps me keep some records.



Attached files http://cloudniner.co.uk/images/converted_files/140978=10007-p1140395_1.jpg (http://cloudniner.co.uk/images/converted_files/140978=10007-p1140395_1.jpg)

21st March 2015, 17:29
That's a very tidy panel Colin. Nice work. :-)

21st April 2015, 19:44
i've installed a few more bits and bobs now, its starting to look a bit busy


Attached files http://cloudniner.co.uk/images/converted_files/141392=10047-p1140528_1.jpg (http://cloudniner.co.uk/images/converted_files/141392=10047-p1140528_1.jpg)

Dave Smith
29th April 2015, 09:24
Glad to see you've labelled those switches Colin. Was about to commit fingers to keyboard...

My very first trike - homebuilt by me and under a medium Typhoon - I fitted my HG Ventimeter to the front strut.
The Ventimeter is a wind speed indicator of the type with a disc that rises up a sort of narrow funnel as the wind entering the port at the bottom rushes past it.
Unfortunately, they don't work well in the presence of vibration.
I did think that an indicated 90mph was a little optimistic...

Equally, wool tufts don't work that well behind tractor props...


22nd June 2015, 09:42
They do. They tell you if the prop is going round. It can be hard to see with the engine running.