Overall Length Between the J3 & PA-18 & AOI

[TR Dunn]

I never would have chosen a Cub for acro, though clipped wing J-3s were popular in their day. You might compare the differences between the Champion 7GCAA or 7KCAB and the 8KCAB which was designed for acro. I believe the 8KCAB Decathlon has less wing incidence than the 7 models. While I'm not certain, they may have different airfoils also. Perhaps you could incorporate some of their differences in your Cub version? Perhaps Bob Turner could pipe in as he has a Decathlon and a Cub.

7ACA through 8GCBC employ a NACA 4412 airfoil. The 8KCAB uses a NACA 1412. The Cub series employs a USA35B for comparison.
TR

 

[skywagon8a]

Stock long wing Cub is just a blast to play with. I have a little Stearman, Great Lakes, Moth and Pitts time but the Cub is just more fun, maybe because you need to make it do it



Glenn

Glenn, I've flown acro in Stearmans and Pitts too among others. Do you think the Cub needs boosted ailerons for this purpose? I taught myself simple very basic acro in a Taylorcraft BC-12D, moving up to a Swift. I never thought I needed more powerful or lighter ailerons.

 

[skywagon8a]

7ACA through 8GCBC employ a NACA 4412 airfoil. The 8KCAB uses a NACA 1412. The Cub series employs a USA35B for comparison.
TR

I thought there was an airfoil change.

 

[cubdriver2]

Glenn, I've flown acro in Stearmans and Pitts too among others. Do you think the Cub needs boosted ailerons for this purpose? I taught myself simple very basic acro in a Taylorcraft BC-12D, moving up to a Swift. I never thought I needed more powerful or lighter ailerons.

Never flew spades so no idea. I never did do a decent roll in my Pa11 but pretty sure it was me and not the plane. The 4 years I worked at Rhinebeck I watched every weekend as Stanley Segalla did loops, rolls, split S, hammerheads and spins at 500' or below during the show. No boosted anything on his Cub. He taught acro in a Super Decathlon into his 80s. He was the best I've ever seen as a flying farmer.
No boost just skill and talent

Glenn

 

[Steve Pierce]

The pictures I posted of the boosted ailerons were from Van White's Clipped Winged Cub Vertigo. He loved to do snap rolls, in fact his nickname was Snaploop. Could have had something to do with it. It was a hoot to fly but I am not an aerobatic guy.

 

[cubdriver2]

My first aircraft was a Piper Vagabond Pa15 Lyc 0145 powered gutless wonder. 65 rated HP ( maybe at 0F ) with a very amature Blue River process finish, like 80 grit sandpaper. Minimal power and lift with that rough finish. For $6200 bucks you get what you can afford. But was a sweet flying little bird. Same wingspan as a Clipped wing Cub but side by side. I was only a 100 hr pilot but that little Vag taught me the most important skill of all. It demanded that I learn energy management if I was going to survive the low and slow type of flying that I enjoyed. Even as a novice pilot it taught myself loops, hammerheads and a split S but was too scared to do a roll at that time but I'm sure it would have been easy with the sporty roll rate of a short winger.
Have an older friend who has owned a stock 115 HP Piper Clipper for about 40+ years and routinely rolled it with him and his wife on board and made it look easy.

Glenn

 

[TR Dunn]

My first aircraft was a Piper Vagabond Pa15 Lyc 0145 powered gutless wonder. 65 rated HP ( maybe at 0F ) with a very amature Blue River process finish, like 80 grit sandpaper. Minimal power and lift with that rough finish. For $6200 bucks you get what you can afford. But was a sweet flying little bird. Same wingspan as a Clipped wing Cub but side by side. I was only a 100 hr pilot but that little Vag taught me the most important skill of all. It demanded that I learn energy management if I was going to survive the low and slow type of flying that I enjoyed. Even as a novice pilot it taught myself loops, hammerheads and a split S but was too scared to do a roll at that time but I'm sure it would have been easy with the sporty roll rate of a short winger.
Have an older friend who has owned a stock 115 HP Piper Clipper for about 40+ years and routinely rolled it with him and his wife on board and made it look easy.

Glenn

Well thanks a lot! Man do I feel inadequate now. I didn't have the nerve to teach myself basic acro back in the early 80's, so I reached out to our local Aerial Applicator (Robbie Robinson of Aero Spray and Dust Service) and was taught basic acro by him (a WWII AT-6 instructor). Used a 985 powered Stearman, still have that old girl today, unfortunately, Rob is gone as are most of that "Greatest Generation". I apologize for the slight drift.

TR

 

[cubdriver2]

Well thanks a lot! Man do I feel inadequate now. I didn't have the nerve to teach myself basic acro back in the early 80's, so I reached out to our local Aerial Applicator (Robbie Robinson of Aero Spray and Dust Service) and was taught basic acro by him (a WWII AT-6 instructor). Used a 985 powered Stearman, still have that old girl today, unfortunately, Rob is gone as are most of that "Greatest Generation". I apologize for the slight drift.

TR

I wish I could have afforded some acro lessons. We were just a bunch of new pilots who had flown RC airplanes for a few years and were too stupid to know any better.
Glenn

 

[TR Dunn]

No money ever changed hands, I wrenched for/with him cutting my teeth on 985's and 1340's on Cats and the Stearman thus laying the groundwork for my A&P and a wonderful friendship. There are always ways to earn it if one wants it bad enough.
TR

 

[cubdriver2]

No money ever changed hands, I wrenched for/with him cutting my teeth on 985's and 1340's on Cats and the Stearman thus laying the groundwork for my A&P and a wonderful friendship. There are always ways to earn it if one wants it bad enough.
TR

That's how I ended up with 116hrs of Stearman time with a R680. Wrenching and paying the insurance bill. I was always broke from the 6 five gallon cans in the back of my truck.
Good times

Glenn