Ken Wallis designs

[MechFx]

Been staring at the model I have of Little Nellie on my computer desk in the "GYRO ROOM" for ages now and the most striking difference I can see to his designs and most (nearly all) others is the shortness of his mast.

I think I even have photos of him travelling along the ground holding the rotors straight ahead from his seat !
And I have seen his 2 seater version too. Not that much different from his singles...

Why/how do his designs allow for this ?

Small diameter Rotors ? Short tail ? Lightweight ?

Everything these days seem to be getting heavier and heavier.

What does Cmdr Wallis know that everyone seems to be ignoring ?

cheers,

Art

[Mitch]

Good post Art.

I'd be interested to get some specs comparing Wallis and Bensen Gyros, length of mast being one of the interesting figures to compare.

Light Weight! and Weight for it :giggle:...... :moon: NCLT so it 'feels' pitch stable :paper:( I dunno. I'm typing in something, to get someone's goat up. :yes: :yes: and an adequate vertical fin so it's yaw stable...and again getting the power to weight ratio in the zone. :omfg: Isn't this what Ken and others were talking about......
The Bob Sleds, I think all of Wallis's succesfull craft were well powered for the weight.

What about Wallis' Blades? I think he made his own....a variation of Bensen's???

Did'nt you visit with the Man when you were last on that side of the world?

Cheers,

Mitch.

[Fencing Wire]

Art,
You'll probably find the "X" factor is prop diameter. His motors are probably direct drive. When my Soob machine was direct drive, I could stand on the ground and pop the rotors onto the head. Now I've gotta climb up on the seat and bust a gut getting them on. A 52" - 56" prop makes all the difference, particularly if it is not way back beacuse of the width of a gearbox. And you only need to lift the seat a little bit to get near CLT (wash my mouth out with soap!!)

[MechFx]

Yeah Mitch I did visit him in 2004.. Amazing guy.
His machines do favour 2 blade props, there was a 4 blade on the wall of his hangar and his fully inclosed version has a 4 blader

I hadn't thought about the direct drive concept.... good thinking

Art

[Mitch]

Luv that first pic Art.

CLT or Near enough to it HS in the middle of the prop blast and Sam will like the fact that the tail has a little of the vertical tail sitting up above the horizontal stab.
Centre of drag looks to be coaxial with the other vectors.....Slipery!!!!! :peace:

Mitch

[Birdy2]

I recon too Mitch, id love to jump in that little critter n sink the boot in. :peace:

[Echo 2]

'ow ya gunna sink the 'boot' in when you ain't got none :crazyas: :anger: . Don't you mean 'sink the double plugger " ? :moon:

[Birdy2]

Figure o speach ya f$#@ hillbilly hole digger. :crazyas:

Ill use one o ya 10lb heavyduty steel cap soft rubber sole polished foot anchors then. [ bloody thing wouldnt leave the ground with one o them on me foot :moon: :poke:.]

[ken watson]

Toe nails like steel caps, skin on the bottom 1/2"thick and no sense of pain . Forgot to mention forehead like a hard hat. From one hillbilly to another. CowpoKen . :lalala:

[MechFx]

another view..