Hello Gang;

    I'm delighted to announce that the LAEV Blades are in transit to me

from

Perry's........
Yes, feast your eyes on these beauties designed by Bill Freeman, thank

you

Bill, who did an absolutely bang-up hi-tech job of it. Built by Perry

Mick,

whom as you all know is by no means a stranger to "Goo-Goo" construction

and

processes, what a great job!
Bill, Perry, if the Blade's performance matches their looks, there's

going to

be a lot of fast planes out there :)
This is the result of Perry's 1st iteration, of both "Recipe" and

"Technique".

The bad news is, the Blade came in over-weight (What else is new) :( at

9.5 lbs

each........The good news is, Paul and Perry both have put their heads

together

on the process and are very confident that the 2nd set will meet the

target

weight of 7 lbs. :)

We will however be employing these for testing the Hub which will be

subjected

to 26% higher centrifugal cyclic forces......GARGANTUAN would be an

under

statement.

Perry, chime in on this and edge protection etc. etc.

More after I have them installed on the Hub.
                                                       Butch

Great work Perry. I'll keep them for flight testing :)

Paul Lamar

Impressed by the broad chord of the blades.  Paul, do you have the design
goal parameters that the blades were designed for - such as HP and blade
rpm?  In otherwords, looks like they could absorb the HP of a 2.85:1 drive
but would they be too much for a 2.17:1 drive.  I guess with variable pitch
it really doesn't matter as much, but just curious about what ever the
design points may have been.

Ed Anderson

No I don't but as I recall they are designed for 200 HP max.
The actual HP consumption will be a function of the pitch and
RPM. 

BTW IMHO wide blades work better than narrow blades at high altitude
for some strange reason. Vance I am sure knows more about this.

Also wide blades for a given diameter will accommodate higher
max HP's at max stall pitch.

We will know a lot more about this prop when we test it.
The test engine will be turbo charged so at least 200 HP
will be available.

BTW Butch do we have a pitch indicator or do we need to measure
it with a protractor?

Paul Lamar
 
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