Matronics Email Lists

Hi Roger,

You are one of the most knowledgeable people on the Rotax 912 that I have ever seen post on any forum. You are the first guy I would go to if I ever had a 912 question ! ( I am still us ...

Regarding the cruise RPM, the max cruise is 5500 and most of the guys I flew
with ran that or close to that as we allways flew at the speed of the
slowest airplane. I also know folks that use th ...

I hit wrong button and posted twice.

Mike

Chris,

Be really really careful that your Skis can not twist up or down on its axle in flight, this could cause a rolling moment that may be very difficult or impossible to control. Its great to d ...

This was completely corrected by installing vortex generators to sides of the fuselage.

Vortex generators also improve a lot of things when installed on the wings of a Kolb Smile

Mike

Being that you do not have an excess of power, you will probably be better off with a longer prop. A shorter prop with more blades is great for producing high speed thrust, but is very inefficient at ...

I just wonder why you are putting an HKS on a slingshot ??? This engine is really to small for that plane. It will probably fly but you will have a big compromise in speed and climb. I believe it ...

My Kolb MK-III Xtra does not have any type of rudder flutter, or tendency to tail wag. When my wife is flying, she keeps her feet on the floor most of the time, my Kolb cruises along happily for an ...

The Kolb will stall VERY easily compared to most sport aircraft. The high thrust line of the Kolb MK III assures that the Kolb will tend to pitch up as soon as you pull the power off, the very high d ...

There are two of us flying two different Kolb MK-III's in Miami. It would be cool to get get together of the Kolbs around here !!!

Mike

Auto conversion engines are very appealing for experimental aircraft such as the Kolb with the promise of low purchase prices and cheap parts. When one does his homework, almost every single auto eng ...

The engine is certainly appealing, I hope they can make it work. Given that it is a 100 HP class engine, if I were building that for an airplane, I would just use a Rotax 912-S gearbox and avoid all ...

I saw this engine at Sun and Fun. I hope it succeeds as Honda engines are very reliable, technologically advanced, and run forever. The Honda engine also has fuel injection which would be a huge imp ...

Just to make it clear, I use the NON bent cotter rings on my Kolb, they are much less likely to come off than safety pins. Safety pins can pop open by tall grass, or anything that brushes up or pushe ...

Easy to install, but I've heard reports of the bent end rings working themselves out under vibration.

-Dana

The rings with the ends bent can most definitely work themselves off under vi ...

Travis, we love ya, Buddy!!!� Kolb Aircraft just wouldn't be the same without ya!!

I have gotten more parts and stuff from Travis than you can shake a stick at, he can always find the rig ...

Yes, I bought several of the Facet fuel Pumps rated for my 912-S, and also for the Rotax 503 / 447 and used them. I forget the exact model number, but I looked up the pressure ratings of the two mode ...

Gottime242,

BTW, I also use a Facet pump to pump fuel from my aux tank into my mains. It pumps 6 gallons into the main tanks in about 20 minutes. Its perfect, I pumps gas into the mains at least ...

The Aircraft Spruce gascolator has a very fine screen filter built into it. If you go from Fuel Tank, to Gascolator, then Fuel Pump as in your diagram, you will have a good source of filtering before ...

Your Fuel Diagram looks very good, you have definitely done your homework and put thought into your fuel system. Very impressive, most people just copy what ultralight guys have been doing since the ...