92 HP rotary aviation engine

GaryMac

Member
Joined
Sep 3, 2008
Messages
814
Location
Colleyville, TX
Aircraft
Building a Genesis G1sa
Total Flight Time
14
Looks like exactly what I have been looking for.... until you get to the 19,000 euro price. Wonder what the difference is between the roughly 6,000 euro 294cc version and the 19,000 euro 294cc version is? (other than the obvious more power and thrust and price).

Thats a huge price difference...
 

Terry_Smith

Gyroplane Fan
Joined
Nov 23, 2003
Messages
565
Location
Southern California
Aircraft
Building a Sportcopter Vortex 582
Total Flight Time
3 - Some training and glider time
Actually, that's 19,000 pounds (british currency), which is $30,780. If it were in Euros, it would be $27,339. Still, a LOT of dough. (I'm 1/2 British, so I recognized the currency symbol as British Sterling, not the Euro)
 

giro5

Senior Member
Joined
Mar 19, 2006
Messages
1,181
Location
Farmington, New Mexico
Aircraft
prev- citabria,AA1b, fun racer
Total Flight Time
400 GA, 50 trike
Well, 88 lbs is impressive for 92 hp but only 340 lbs of thrust for 30 grand. Not so impressive.
 

HobbyCAD

Homebuilt Heli Enthusiast
Joined
Jul 8, 2008
Messages
1,564
Location
Hervey Bay, QLD, Australia
How do they get from 40HP for the 294cc Cyclone, to 92HP from the same 294cc Everest???? Something fishy here?? Nothing like a free lunch !!!

The Norton/Midwest Engines is a dual rotor, much bigger, and struggles to give 90HP.
 
Last edited:

Heli

Newbie
Joined
Oct 8, 2009
Messages
36
Location
Tokyo
They use the Aixro XR50 engine as a base.
http://www.woelfle-engineering.com/
the cart engine is about USD$5500. The german company that released the cloud dancer Gyro with a Weber engine did some testing of this Aixro XR50 engine in a twin configuration..not sure what happened to that.

The 92 HP number must be a typo since they list the other configuration at 40 HP as the "ultimate power unit".

There are some rotary that can output that HP in a lightweight configuration but those are extremely expensive (Military budget) and perhaps not very durable because they are moslty used in high-performance drones.
http://www.uavenginesltd.co.uk/index.php?id=393
 
Last edited:

choppergabor

Newbie
Joined
Apr 15, 2009
Messages
4,864
Location
Sunshine State
Aircraft
N65GK Behemoth
Total Flight Time
Too few to mention
Yeah I think you guys are right. Simple physics wouldn't allow that many HP come out of that tiny engine. I clearly wasn't thinking only reading the numbers..... I should quit drinking till midnight every day....
 

choppergabor

Newbie
Joined
Apr 15, 2009
Messages
4,864
Location
Sunshine State
Aircraft
N65GK Behemoth
Total Flight Time
Too few to mention
Yes Dennis I haven't read the whole thing before posting it.... my bad :( I just got excited for a second seeing the obviously wrong numbers :) You know it was the case of if you really really believe you can actually see it being true :)
 

Riff Raf

Newbie
Joined
Sep 16, 2007
Messages
682
Location
USA
Aircraft
Air Command 503 & RAF 2000 GTX SE (with some mods.) Tierra W/ Tri-Gear
Total Flight Time
16 dual in Sparrowhawk and a few more in other Gyros, 250 in FW
Yeah I think you guys are right. Simple physics wouldn't allow that many HP come out of that tiny engine. I clearly wasn't thinking only reading the numbers..... I should quit drinking till midnight every day....
But what about an Allison 250 the engine, by itself weighs maybe 70lbs and makes 300 - 400 shaft HP.
From what I hear..:)
 

phantom

Newbie
Joined
Apr 1, 2009
Messages
1,417
Location
Eagle River
rotary engines

rotary engines

I have heard that you can get more HP from these engines by turning them faster and using a higher gear ratio to the prop.
 

HobbyCAD

Homebuilt Heli Enthusiast
Joined
Jul 8, 2008
Messages
1,564
Location
Hervey Bay, QLD, Australia
There is only so much HP you can get out of a 294cc IC engine. If it was in any way efficient, why is the rest of humanity using more cc's? You might rev the crap out of it, get 92HP for a while, but surely not for a couple of hundred hours of operation.
 
Top