Stirling helicopter

[gg89220]

hello
Start of the construction

 

[gg89220]

hello
a few more pieces

 

[doc1955]

Looking good, I just finished 2. Hope your bevel gears are better that the ones I purchased. They were (looked like to me) 3d printed and not well at all. They were not concentric with the hole and lopsided.

 

[gg89220]

Hello
quick questions ... on the flywheel rep 12 there are 5 holes Ø 11 and 1 hole Ø 8, why? do you have to orient the flywheel in relation to the piston?
can the engine run without the blades? or they are useful to have inertia?
thank you

 

[doc1955]

Excellent question I know mine tremble a bit when running but I never spent any time changing the position to see if it would help. Maybe I should spend some time and see. So in short I don't have an answer for you. I may have just gotten lucky and have the positioned close to oppisit the piston. I'll need to check on that next trip to the shop and see. I would venture to say yes the smaller hole is there to take some of the shake out, I never even gave it any thought but I will now lol.

 

[fcheslop]

It does help a little
When I first ran my version I ran it without the tail rotor assy or the main blades
One thing I found made a difference to the engines speed was to fit a ptfe washer between the flywheel and the lower main bearing.

 

[doc1955]

No blade are not necessary can be run with out. I have mine set up with the small hole in flywheel towards the tail with the power piston at top of stroke and the vibrations are minimal funny how I have both the same as it happened just by chance. lol

 

[gg89220]

hello
engine part, piston, cylinder,

 

[gg89220]

hello
assembly of elements

 

[gg89220]

hello
helicopter completed,very delicate development...

 

[ShopShoe]

That's interesting to watch and seems to have plenty of power.

Thank You for posting,

--ShopShoe