Phil,
I loaded a file showing a section through the HP-18 fuselage from SoarIdaho:
www.soaridaho.com/Schreder/Schreder/Building_the_HP-18.html
This website has lots of excellent information on building and detail design drawings. The file "HP18 Flap Mixer.jpg" shows the cam and the flap pushrod setup.
Dan
--- In
This email address is being protected from spambots. You need JavaScript enabled to view it., "Philip Lardner"
wrote:
>
> Hi Dan,
>
> I don't suppose you'd have any photos or links to photos of the flap
> interconnect system for the HP-18? I'm interested to see how this was done.
> I'm still at an early enough stage of my build that I can consider
> different options and maybe incorporate them.
>
> Phil.
>
> _____
>
> From: This email address is being protected from spambots. You need JavaScript enabled to view it.
> [This email address is being protected from spambots. You need JavaScript enabled to view it.] On Behalf Of Daniel
>
> ...The flap interconnect system designed by Dick Schreder on the HP-18 was
> remarkably simple. It used a rotating cam to drive the aileron pivots up and
> down. The rotating axis was in line with the flap axis allowing a straight
> plug into the flap root ribs for automatic control hookup. It was even
> simpler than the spoil flap on the Carbon Dragon and far more effective. It
> is worth a look. 