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1 Blade Propeller


Guest Michael Coates

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Mike, The rumour mill has a retired Aero engineer somewhere near Toowoomba close to finishing converting a Blanik sailplane to be self launching, powered by a 503 Rotax driving a single bladed self feathering prop. I believe he has studied it all very thoroughly and is satisfied that his proposed setup will give him the greatest efficiency.

Jeez, get it right. It's a 582 Blue-Head Rotax.

 

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And the Everel concept isn't 'self-feathering', it's more like a 'constant speed' prop: at high rpm the geometry reduces it to fine pitch so the thrust is maximised; when throttled back, it automatically coarsens pitch for best economy.

 

However, at much more than around 100 hp, other factors make the Everel concept inefficient.

 

But, you're right: somewhere near Toowoomba. And a Blanik. With the necessary mods. to allow it to fly. Rumour has it the bugger has several 'legal' Blaniks in his hangar, after some metal-bashing has been done to repair damage to one of them.

 

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Well it's a Rotax with half as many strokes as a proper engine needs, but I suppose the prop has half as many blades as seems proper, so maybe it all gels.

 

So it's a blue head. So what? I'm married to a red head. Both can be cantankerous little things though one is more reliable than the other. and NO! I'm not going to say which is witch.

 

 

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Mike, The rumour mill has a retired Aero engineer somewhere near Toowoomba close to finishing converting a Blanik sailplane to be self launching, powered by a 503 Rotax driving a single bladed self feathering prop. I believe he has studied it all very thoroughly and is satisfied that his proposed setup will give him the greatest efficiency.

This link has some info. http://www.recreationalflying.com/threads/blanik-l13-grounding.16398/page-2

Cheers Mike

 

 

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