Varieze Weight and Balance

[Canardo]

CG is important so

Knowing that Max pilot weight is 95 KG, Question :

Max weight on the ground on the Nose Gear wheel when pilot is onboard and ready for departure ?

Weight on your Varieze Nose Wheel when you seat inside and ready to fly ?

 

[Marc Zeitlin]

5 hours ago, Canardo said:

Max weight on the ground on the Nose Gear wheel when pilot is onboard and ready for departure ?

Weight on your Varieze Nose Wheel when you seat inside and ready to fly ?

 

Neither of these numbers means anything or is representative of where your in-flight CG actually is.

This is why we perform a real W&B analysis for each aircraft, so that one can ensure that one is inside the approved W&B envelope prior to flight.

Maximum pilot weight is set by the forward CG limit, and reaching that will be dependent upon the empty weight and CG. It might be 95 kg, or it might be something else entirely.

Do the W&B as prescribed in the VE POH - then you'll know your answers. If you need help with the W&B, I have a spreadsheet template and am happy to help with questions, but follow the POH.

[Canardo]

Thanks. I did the W&B. I am in. I am suspicious about the weight on the nose wheel shock absorber making the nose going down depending on the pilot weight. Maybe some various springs types are available also. Something  strange also like some Varieze are going up on ground when gear down. Some not. Without pilot onboard. I can give you my numbers via PM. Thanks. 

[Marc Zeitlin]

10 minutes ago, Canardo said:

Thanks. I did the W&B. I am in. I am suspicious about the weight on the nose wheel shock absorber making the nose going down depending on the pilot weight. Maybe some various springs types are available also. Something  strange also like some Varieze are going up on ground when gear down. Some not. Without pilot onboard. I can give you my numbers via PM. Thanks. 

Since other folks might be interested, I've attached my canard W&B template - the yellow cells are inputs.

The Varieze nose gear spring, like the Long-EZ and COZY and other canard nose gear springs, allow for bouncing and nose deflection under load. Almost all canards (VE, LE, COZY, etc.) will tip over backwards when the nose gear is extended and there is no load in the front seat - this is one of the main reasons for the nose gear retraction capability. The empty CG is generally within 1" of the main gear fuselage station, so if the CG is at or slightly aft of the MG FS, the plane will tip.

 

Canard_W&B.xlsx