Matronics Email Lists

Having flown a couple of hours recently in a friend’s WT9 I was amazed how quiet it is compared to my Europa. In the WT9 a conversation is possible even without headsets whereas my Europa is very u ...

I would think graphite could change the friction on the clutch mechanism in the gearbox.
It’s a bit of a juggling act!

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Hi Jerry,

I fitted the Beringer wheel 6 years ago and I am very happy with the performance as the braking is progressive without being too powerful. Make sure you get the pressure limiter which is ...

I agree about the donuts, my triumph GT6 Mk2 had them on the drive shafts.
I also know someone who used them on his ultralight which used a car diesel engine. When it failed he lost drive to the pro ...

Hi all,
This debate is quite interesting, I am using a 7” Air Trac tyre with 22 psi on a Beringer wheel. I tried pressures around 28 psi but found the extra height made the aircrafts lateral stabil ...

Hi All,
I have also looked into this and after ordering and paying for a K&N filter and being told that its out of stock! I looked for a replacement.

Green Filter, make air filters for perform ...

Hi Jeff,
The idea of putting a lot of heat in that area could cause problems. If you need to remove the bearing I would try and find a way of putting localised heat on the bearing to soften the locti ...

Thanks Jim
Do not archive

Hi All,
Once again, read one time too many, the top fuselage fuel tank vent mounted just in front of the fuel filler (classic) has dribbled out fuel during the climb and once due to expansion of the ...

I jack my aircraft using an ATV jack that can be purchased at a reasonable price with custom made jig that takes the weight of the aircraft on the LG01 frame. A rubber strip ensures no damage is done ...

Jerry,
Rotax thought about draining the system and included a drain in the coolant pump housing which is very useful.... when the engine is on a bench and the rear of the engine is accessible!

I d ...

Just out of interest, when I search for SL-912-016R1 I only find the 2016 version even on the Rotax site. What am I missing?

Regarding propeller settings on my mono, WOT static is 5400 rpm, WOT at ...

John,
Weight and balance is an interesting subject and everyone has their opinion on what’s best.
While a datum of 29,25 forward of the joggle might seem strange initially, it could have been 30 ...

Brian,
I have a stall warner with a light high up in front of the pilot plus a buzzer in the headlining which is switched off. The light is useful for judging landings as it gives a good visual war ...

Hello David,
I know you asked for details to your personal mail but it has become a public debate anyway so here is my two pennyworth.

I use two Sytec PRO896 filters which have a 52 micron mesh as ...

Hi Erik, I am following the evolution of the play in my tailplane and this is what I have observed.
In my case the play is between TP5 and TP4 almost certainly due to play in the clevis pin on the st ...

Thanks for everyone’s comments regarding the use of silicon tubing for the oil return line which would seem not to be a problem.
Brian’s remark about all hoses not having the same characteristics ...

Hello,
I am replacing the hoses on my 912 and I am thinking of using silicon hose for the oil return line. This is probably the hose that is the most affected by heat as just above the exhaust system ...

Good afternoon,
This is my first post on the Rotax forum so hello to everyone.

I have an old (20 years) 912 UL with 500 hours total which I am looking to get rebuilt to 100 hp ULS spec with soft s ...

Here is some information I pulled from the web François

Based on your experience with this system, do you think that the original master cylinder volume displacement would be enough to be used ...