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Old 07-16-2019, 02:41 PM   #11
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Re: 1/3rd scale Pitts S2A rebuild


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Iím kind of doing this for the same reason. The family had to sell a pretty extensive collection of model aircraft (including this one) because of dementia. This plane was built but apparently never flown. I thought it deserved a chance of being an airplane!
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Old 07-17-2019, 11:23 AM   #12
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Re: 1/3rd scale Pitts S2A rebuild

I finished stripping the fuselage. The rudder was about 1/4” too short and an 1/8” thinner than the vertical fin so I’ve decided to build a new one. I cut the flat hinges off with a hot knife (they will be replaced with Robart HD hinge pins). I cut the pattern to laminate the trailing edge now. I’ll probably rip some bass into 1/2” by 1/16” strips to laminate the bow.
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Old 08-07-2019, 02:32 AM   #13
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Re: 1/3rd scale Pitts S2A rebuild

Donít you hate it when work interferes with your hobbies! I finally got back into the shop and glued up the basswood strips to form the trailing edge of the rudder. The strips were soaked in an ammonia Windex bath for a few minutes and clamped on the form until they were dry. A couple of days later I glued the pre-shaped strips and clamped them back on the form to dry. I also cut the mold for the elevators since one was quite warped and neither was really built the way I would feel comfortable with.
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Old 08-07-2019, 09:11 AM   #14
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Re: 1/3rd scale Pitts S2A rebuild

looks good , I like your template idea .
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Old 08-07-2019, 10:00 AM   #15
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Re: 1/3rd scale Pitts S2A rebuild

I know when you put it back together all the hardware and electronics will be up to date but you haven't mentioned anything about the engine. I have owned and flown two 1/3 scale Pitts and I used a 3.2 Brisson in both and it was more than ample power for scale flight. That twin is more power and weight than needed I bet a lighter engine would improve overall performance greatly.

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Old 08-07-2019, 11:52 AM   #16
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Re: 1/3rd scale Pitts S2A rebuild

Hi Dennis, I would agree that a 80cc twin might be more than what is needed but after flying IMAC planes with DA200ís Iím kind of spoiled
I like to putt around at scale speed and then be able to pin it and do a few vertical upline snaps!
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Old 08-07-2019, 08:33 PM   #17
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Re: 1/3rd scale Pitts S2A rebuild

Just wonder how the extra wing loading is going to affect the flight characteristics. Mine at 13/14 lbs was pretty nimble and had lots of vertical though not unlimited. I loved to hang it on the prop with smoke on at full throttle then watch it slowly slide back through the smoke. LOL

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Old 08-22-2019, 10:46 PM   #18
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Re: 1/3rd scale Pitts S2A rebuild

I finished remaking the rudder and elevators and the final step in fixing the tail is fabricating the balsa covers extending back from the end of the turtle deck. I soaked the 1/8Ē balsa with a Windex and will let the pieces dry on the forms.
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Old 08-27-2019, 10:55 AM   #19
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Re: 1/3rd scale Pitts S2A rebuild

Nice work Gordon, as usual! Looks like it will be a nice flying bird when its done. I prefer to mount larger engines on my air frames. This allows me to swing the largest prop possible, with in reason, and also cancels out the possibility of adding useless nose weight.

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Old 08-27-2019, 03:00 PM   #20
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Re: 1/3rd scale Pitts S2A rebuild

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Originally Posted by Sukhoi 68 View Post
Nice work Gordon, as usual! Looks like it will be a nice flying bird when its done. I prefer to mount larger engines on my air frames. This allows me to swing the largest prop possible, with in reason, and also cancels out the possibility of adding useless nose weight.

Scott
Thanks Scott, I have always used the largest (within reason) engine for the same reason. I would much rather fly around at half throttle and have the extra power when needed to pull myself out of trouble. Iím having trouble keeping motivated to get down to the shop at night but as soon as the IMAC season is over I will get this plane done! A friend has already reached out and is interested in buying it when itís done.
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