FlyingGiants - View Single Post

esc · 07-07-2009, 04:40 AM

Hi Guys,

Mithrandir - I will check that software out today, thanks for the tip.

Spooky - Yes, I have seen and read through both of your postings - congratulations to you both they are very nicely done and informative articles.

Re your post above - I really like your style of picking the more esoteric aeroplanes and would love to see the XP-72 as a completed model. Please keep me informed of your progress or give me the link to it's design and construction.

Returning to the programs - it's not the wing design I am concerned about it's the generation of correct aerofoil shapes, hence my looking at these new to me programs.

It seemed to me that there must be something available to make this job easier and I was pleasantly surprised to find so much software to choose from. Most programs go farther than I want as I would prefer to do my modelling in Inventor. I don't really require the software to do more than generate smooth sections and test the airflow.

My latest project is based on my dreams as a youngster mixed together with a need to overcome the shortcomings of rough field flying. I am thinking of re-scaling and bringing up to date with electric propulsion a design that Phil Smith created in the 60's - the Veron "Concord". Or more precisely a combination of the "Concord" and Doug Spreng's "Stormer." Which I am reliably informed pre-dates the Concord and the two are almost identical.

I placed a post in the vintage section of RCUniverse recently and some of the members that frequent that site were kind enough to supply me with some details - see attachments. It's a nostalgia thing for me as I always wanted one of these planes.

My idea is to use a fully symmetrical 15% wing section instead of the assymetric one used by the designers, reduce the span to 48" - re-design to save weight and aim for between 15-20oz/Sq. ft wing loading and 80-100W per lb power to weight ratio.

I may remove dihedral altogether, or just keep a little to improve the looks, say 2 degrees. I will fit large foam wheels to counteract the rough field and I should end up with a bit of a "honey" which has a lot of nostalgia thrown in for good measure.

One alternative to this design that I am also considering is a similar scaling and modification to a Peter Russell design - the "Striker."

Regards,

Dave

07-07-2009, 04:40 AM	#64
esc Uber Contributer Join Date: Jun 2008 Posts: 164	Re: What software are you guy's using? Hi Guys, Mithrandir - I will check that software out today, thanks for the tip. Spooky - Yes, I have seen and read through both of your postings - congratulations to you both they are very nicely done and informative articles. Re your post above - I really like your style of picking the more esoteric aeroplanes and would love to see the XP-72 as a completed model. Please keep me informed of your progress or give me the link to it's design and construction. Returning to the programs - it's not the wing design I am concerned about it's the generation of correct aerofoil shapes, hence my looking at these new to me programs. It seemed to me that there must be something available to make this job easier and I was pleasantly surprised to find so much software to choose from. Most programs go farther than I want as I would prefer to do my modelling in Inventor. I don't really require the software to do more than generate smooth sections and test the airflow. My latest project is based on my dreams as a youngster mixed together with a need to overcome the shortcomings of rough field flying. I am thinking of re-scaling and bringing up to date with electric propulsion a design that Phil Smith created in the 60's - the Veron "Concord". Or more precisely a combination of the "Concord" and Doug Spreng's "Stormer." Which I am reliably informed pre-dates the Concord and the two are almost identical. I placed a post in the vintage section of RCUniverse recently and some of the members that frequent that site were kind enough to supply me with some details - see attachments. It's a nostalgia thing for me as I always wanted one of these planes. My idea is to use a fully symmetrical 15% wing section instead of the assymetric one used by the designers, reduce the span to 48" - re-design to save weight and aim for between 15-20oz/Sq. ft wing loading and 80-100W per lb power to weight ratio. I may remove dihedral altogether, or just keep a little to improve the looks, say 2 degrees. I will fit large foam wheels to counteract the rough field and I should end up with a bit of a "honey" which has a lot of nostalgia thrown in for good measure. One alternative to this design that I am also considering is a similar scaling and modification to a Peter Russell design - the "Striker." Regards, Dave Attached Thumbnails 21.4 KB · Views: 15 283.4 KB · Views: 12 124.0 KB · Views: 14 125.3 KB · Views: 12