rhtrudder

A inflight adjustable will extract more useful power from your engine , I reckon, factory is good to deal with, look them up, I think they make three sizes in 2 and 3 blade , right and left , tractor and pusher, also wheels and brakes that are fitted to my plane , the controller in mine is a standard vernier type , all available from them , pricey though, your fuel burn looks a bit better than mine , if I hammer mine it will make 130 but burns closer to 25 I think I might bolt on a duc prop and pitch it for cruise, my strip is 800 m heading south , should be ok ,

Happy with the Kašpar , quiet, full fine 5800, about 100 m roll out , cruise 120 at about 5400 and 35 on the map gauge 18 lts , stall about 35, wheels and flaps up climb maybe 1200 at 70 kns. Just clocked up 1700 hrs ,bought at 470 hrs about 10 years ago , 3rd owner, been a great plane , factory certified to 544

It’s a 3 blade in flight adjustable Kaspar 1620mm , made by kasparaero cz

After trial and error with the Kašpar worked out the thrust bearings are shot , to much side play and if tightened up they become notchy, got them a bit better , ok at cruise, big trouble trying to get new prop shipped , so I thought of replacing with a ground adjustable until it turns up but apparently it can’t be done without factory approval which makes it hard because the Sabre mob went into liquidation years ago, the new crowd, skyleader, can’t help, is there anyway around this or should I just fit another prop and get back in the air

Thinking of replacing the prop studs and the flange bushes are they available from floods or the propellor mob

Hell, at that rate mine will be out for sure , I did notice when I tightened the clamp bolts it would change the angle a bit , plane is at lame in deni , I am hoping this is my problem as it is bad enough to not fly it as I said good at cruise but bad when throttling back

If the pitch is not set the same for each blade could that make it vibrate when throttle is retarded, only set the pitch on each blade with a bubble type pitch gauge, took a few goes started off to fine then to course , struggled to reach 5000 on take off, so I split the difference, I was surprised how little movement made the difference , since found out you can use the inclinometer on a phone to check it,

All good suggestions, thanks for the advice

Had a wheels up landing in my Sabre, mechanical failure, broken prop, gearbox checked out by Wal , all good, borrowed another prop from a mate, Kaspar, had to change the pitch as it was over reving, now have a bad vibration as is throttles back past 4000 revs , only noticed this as I was flying to deni to get some panel work done, could it be caused by a miss match in the pitch of the blades , cruise and idle it is good , got a mercury balance plate fitted.

It makes sense now , just checked out my bird , reckon I’m right to try some spins

I see the bristell has been deemed unsafe to do stalls in because they can’t recover if they fall into a spin , what is exactly wrong with the design that makes this possible

The pilot in question flew for the police air wing, helicopters, but I reckon I will keep checking

Talking with a pilot about checking for water in fuel, he reckons it’s a waste of time after a refuel as the liquid is stirred up that much it wouldn’t settle out in the bottom of the tank, only time is before first flight after it has sat for a while, any thoughts?

That’s what I thought, probably should wait till the end to get the most out of the two years

Bfr due at end of March , is it possible to do it earlier and forward date it to line up with the due date