Bill, Being the owner of a plane (a Mantis) with two wings, one a 7037, the other an MH32, both with the same planform, I think I have as good a comparison basis as any.
The big difference is in ability to penetrate. The 7037 has a problem penetrating when the windspeed exceeds 15 to 20 MPH. Ballasting it does help, but not much. The MH32 wing does much better in the same conditions. The big surprise is that this ability comes at very little cost at the other end of the spectrum. The 7037 probably has slightly less minimum sink speed, but if there's a difference it is very small. The MH32 slows down very well, much better than the RG15, which is almost identical. Both airfoils seem to have the same response to camber changes. Of course, these two wings may not have "proper" 7037 and MH32 airfoils! I personally prefer the MH32. I also own a Cobra and a Sharon. The Cobra has an MH32 airfoil and penetrates really well, but does not like to be slowed down to a crawl. The Sharon has a blended 7037/RG15 airfoil and flies as if it had an MH32! Anker ----- Original Message ----- From: "Bill Swingle" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Friday, December 14, 2001 5:57 PM Subject: [RCSE] 7037 vs. MH32 Discussion > I'd be interested in a discussion regarding the merits of the 7037 vs. the > MH32. They look quite different to me. Isn't this a real big choice? > > To me the MH32 looks like more of a sloping foil while the 7037 looks like a > "floaty" thermaling foil. > > I have to confess a personal bias. When I tried the 7037 I found it "lifty" > but kind of slow and boring. > > Bill Swingle > [EMAIL PROTECTED] > Janesville, CA > > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
