Compact 110 details and Q's

On Wednesday, March 30, 1994 at 10:21:27 AM UTC-6, Stephen Eldredge wrote:
I posted a note a week or two ago about the Compact 110 ,a new design being
developed as a foot-launchable ultra-light sailplane. This design is by
Bill Spencer and has been the focus of a few articles in several mags
including most recently April 94' issue of Kitplanes. Plans are not
avalible, but the intruiged me so much that I have designed my own version
from the specs and drawings. After 15 years of building and Designing R/C,
this will be my first full-scale project.

I have several questions for the net about this project. First the
design calls for foam ribs in an aluminum D-tube construction. Does anyone
have any sugestions about how to bond the foam to the aluminum? Also is
there a common construction method for strengthening foam ribs? I am
looking currently at using 1lb white foam with aluminum cap-strips.

FYI here are some of the specifics about this plane

Wing Span 34.5'
Aspect Ratio 9:1
Length 16'
Empty weight 110lbs (hence the name)
All aluminum (mostly) construction with fabric covering
foot launch with 10" wheel for landing

Performance
Max Speed 45mph
Stall 20mph
L/D 16:1
Min sink @26 3'/sec

BTW these are all estimated figures, and are comming from memory, but I
think they are close. I would be very interested in some dialoge about the
light sailplane end of this wonderful hobby/sport.

-Steve Eldredge



On Wednesday, March 30, 1994 at 10:21:27 AM UTC-6, Stephen Eldredge wrote:
I posted a note a week or two ago about the Compact 110 ,a new design being
developed as a foot-launchable ultra-light sailplane. This design is by
Bill Spencer and has been the focus of a few articles in several mags
including most recently April 94' issue of Kitplanes. Plans are not
avalible, but the intruiged me so much that I have designed my own version
from the specs and drawings. After 15 years of building and Designing R/C,
this will be my first full-scale project.

I have several questions for the net about this project. First the
design calls for foam ribs in an aluminum D-tube construction. Does anyone
have any sugestions about how to bond the foam to the aluminum? Also is
there a common construction method for strengthening foam ribs? I am
looking currently at using 1lb white foam with aluminum cap-strips.

FYI here are some of the specifics about this plane

Wing Span 34.5'
Aspect Ratio 9:1
Length 16'
Empty weight 110lbs (hence the name)
All aluminum (mostly) construction with fabric covering
foot launch with 10" wheel for landing

Performance
Max Speed 45mph
Stall 20mph
L/D 16:1
Min sink @26 3'/sec

BTW these are all estimated figures, and are comming from memory, but I
think they are close. I would be very interested in some dialoge about the
light sailplane end of this wonderful hobby/sport.

-Steve Eldredge
I have a Compact 110 that I have flown nine flights..If anyone is interested in this design,I have some recent experience..Cullen Cline