here is bottom scheme.,

I received a set of under wing tanks for the PC21. Has anyone installed them and if so what mounting points did you make up in the wings to install the pods?

I noticed the L/R pods are angled slightly on the wing side, I assume it is to make the pods hang vertically due to the dihedral of the wings?.

Anton?

here is drawiong for the mounting points of underwing tanks.,

Thanks Anton, any chance of an answer to the bold text?

Nev,

I think your assumption is correct - that has been my experience with other SM wing tank pylons. Just a word of caution with the actual mounting positions; whilst you may find hardwood in that position, you can never tell if you are maybe on the edge of it or not. I normally open it up (round 19mm hole) and glue a 19mm round dowel up to the top wing skin. I then drill and put a plastic wall plug (like we use to hang pictures with) in the correct position on the dowel and use a long wood screw to hold the pylon on the wing. The screw head is countersunk into the pylon so that it does not interfere with the tank. Everytime I fit the pylon, I first turn the screw anticlockwise to 'feel' for the thread that the screw had cut into the plug. That way you don't cross-thread the plug. This method allows for an easy 'pullout' if the tank should ever get caught somehow and will then not 'break out' the pylon mounting in the wing.

Cheers,

Jan

Thanks Jan, seems I will go that route. There are no hard points in the wing I believe. Would be nice to get thoughts from the manufacturer of these kits, but anyway your method makes good sense, will try to see if I can "tie" the dowel to a rib that hopefully is in the area under the skin.

Btw it flies very nice. .

I finally flew mine last week. Two perfect flights. On the ground, the KT60 pulls like a mule, feels like way too much power. It doesn't translate to the air... static thrust versus actual thrust in the air??? It flies very scale like with the KT60, if you want a hot rod, I think the KT100 is the way to go. The 5 bladed prop sounds amazing. I just need to get some smoke on mine and it will be good to go.

Landings are awesome, slows down to a crawl. When you put the turbine to idle, its like throwing out a boat anchor with that big disk up front...drive it down and flair... Definitely a keeper!

Hey Doc,
Have you considered trying a three-blade 24x22 prop on your K-60tp?

Haven't David, the look and sound of the 5 blade is just too cool! Did you compare the two? I know the three-blade doesn't make the neat sound. If it gains a lot more performance, I might check one out.

Doc,
I never ran the five-blade prop on the K-60tp, so I can only mentioned that I was very pleased with the speed and vertical performance of the three-blade 24x22 prop.

Hmmm.. I would say the vertical was uninspiring. It flew at a very scale speed. But by no means felt fast.

If any of you are into 3D printing, I designed this back of the canopy cover. I can send you the STL file if you want to print one. Tried to attach, wouldn't let me.

Hi Anton,

Have you flown the PC21 with the wing tanks attached? If so were there any major trim changes.?

BTW your diagram measurement for the rearward attachment points is perfect if you want to end up right over the edge of the retract frame and cylinder. Sometimes I really believe your rulers are different to ours....

Sorry , i have no chance to fly the PC-21 with the underwing tanks. if this wekkend the weather is good(no rain) my friend in Taiwan will fly the PC-21 with the under wing tanks. ,

i just got the chance to asked my friend Taiwan test fly his PC-21 with the underwing tanks powered by K-60TP today, very nice flight almost not need trim,

Sorry only mobile phone to took the short video.,

Hi guys I just picked up pc with a k60tp, the previous owner was flying it with a 3 blade carbon fiber prop without the spinner, personally I don't think it looks very good without the spinner. Question is I am trying to add the spinner with the skymaster 5 blade prop, but once I add the back plate there isn't much room left on the shaft for the prop to sit on securely. I am not very comfortable flying it like this, is this normal? Thank you

It is normal, and from my experience with the K-60 tp, it will not be a problem. Just make sure to drill the base of your propeller to fit snuggly on the shaft extention.

Excellent tip Jan. Thank you for the detailed write-up! Do you attach the plastic wall plug into the dowell with any sort of glue or is it just a press fit? Thanks again.

Hi Nickelup, From what I have seen, KT turbo prop comes with two bolts. You might have the shorter one. Make sure you have the long one.

behzad

Double post

Thanks for the info. Has anyone installed a smoke system on their tp60 or 100? Can you please post some pictures of your smoke nozzle installation and positioning on your exhaust. Thanks

Mine is the same way, seems to work fine. I had trouble tightening it though, piece of adhesive sandpaper on the back plate totally solved the problem. 5 blade sounds SOOOO COOOOL!

Hi Dr Scoles, Thanks i will try it and see. Do you have a smoke system installed in yours?

PC-21 flight with the underwing tanks, power by K60TP, from S, Africa