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[Solved] Brazilian Stinson HW-75

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Paulo Mansur
(@paulommansuryahoo-com-br)
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Joined: 2 years ago
Posts: 13
Topic starter  
After 19 years restoration, Stinson HW-75 s/n 7238 got into the air again. What’s a great plane!

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Dennis Crenshaw
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Joined: 16 years ago
Posts: 289
 

Would love to see some pictures.  What engine did you install?  Original was Continental A-75.


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Paulo Mansur
(@paulommansuryahoo-com-br)
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Joined: 2 years ago
Posts: 13
Topic starter  

Hello Dennis,

First of all, I'm very glad to be a member of the ISC. The Stinsons are so great airplanes and surely deserve an international community to help keeping them flying and the history alive. The 105's are somehow forgotten by aviation community, don't know exactly why, but those little planes are proven safe and have great flying characteristics with exceptional performance.

I'm trying to add some pictures here but cannot find a way of doing this in the forum. I'll figure out a way to post pictures in the site and let you know.

I installed a Continental O-200 with a McCauley propeller. The idea of this choice was to keep the original characteristics of the airplane with extra power what for the 105's in general is a good deal. This resulted in a very well balanced solution for the "under-power" Baby Stinsons. 

I have lots of technical information about the 105 models and would love to share them with all members that want to know more about the 105s. 

Let's keep in contact!

Paulo.


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Paulo Mansur
(@paulommansuryahoo-com-br)
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Joined: 2 years ago
Posts: 13
Topic starter  

Hi! The system now allowed me to load some pictures....thanks!


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Paulo Mansur
(@paulommansuryahoo-com-br)
Active Member
Joined: 2 years ago
Posts: 13
Topic starter  
EEB9438F DD8D 44CE 8689 2C952631DAF0
45CA884A 4725 493F AD38 5BD335F73716
0DFFD1BF BC8A 4C5E 85CB 428F62BA9215
F7F8D0B6 45EA 4776 B07A F4B90517888C
B1051D9E E690 415E AB2B 0264509EC256

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Randy Phillips
(@rbpdh82comcast-net)
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Gorgeous airplane


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Dennis Crenshaw
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Joined: 16 years ago
Posts: 289
 

Wow, you did a beautiful job with that, Paulo.  I imagine the O-200 makes a very nice airplane.


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Michael Samson
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Joined: 2 years ago
Posts: 258
 

 Looks great! What does it weigh and how fast does it go?


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Paulo Mansur
(@paulommansuryahoo-com-br)
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Joined: 2 years ago
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Topic starter  

@ecos36gmail-com With all accessories installed got 1120 lbs as empty weight. Heavier than the basic model but the 25 HPs more seems to make it a great performer. Just made two flights so far. At FL 400 it cruised at 95MPH with 2450 RPM. Using a climb propeller (69x48). Will have more details on the performance during next flights and will post here.


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Paulo Mansur
(@paulommansuryahoo-com-br)
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Joined: 2 years ago
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Posted by: @paulommansuryahoo-com-br

@ecos36gmail-com With all accessories installed got 1120 lbs as empty weight. Heavier than the basic model but the 25 HPs more seems to make it a great performer. Just made two flights so far. At FL 400 it cruised at 95MPH with 2450 RPM. Using a climb propeller (69x48). Will have more details on the performance during next flights and will post here.

Correction....At FL 040 got that IAS...not FL 400.


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Paulo Mansur
(@paulommansuryahoo-com-br)
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Posts: 13
Topic starter  

Correction....At FL 040 got that IAS...not FL 400.


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Michael Samson
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Joined: 2 years ago
Posts: 258
 

 You would get a nose bleed if you were at 40,000' ? 

 My prop is a 74x48 and I remember 105mph in the old condition. Everything I have done to make it faster and lighter was probably cancelled out by the new tires.


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Paulo Mansur
(@paulommansuryahoo-com-br)
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Joined: 2 years ago
Posts: 13
Topic starter  

Kkkk....you’re right Michael....no oxygen bottles in the stinson ! You’re doing a quite good job in your 105. Looking for your restoration posts I remember the exactly same path I have tracked on mine. If I can be of any help with technical information, please let me know.

Why are you using the large tires? What is yours 105 empty weight with the Lycoming?


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Michael Samson
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Joined: 2 years ago
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 Big tires look cool, but not too big. I landed really hard in this plane once, in a friend's back yard field with the old 6.00's, flat shocks and just one brake. I did have to do a 360 to avoid a pump house, but I didn't need bigger tires. I have always liked the look of 7.00's so as long as I can can flight plan for 100 mph, I will be happy.

I would like to get it weighed but I don't know where.


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Paulo Mansur
(@paulommansuryahoo-com-br)
Active Member
Joined: 2 years ago
Posts: 13
Topic starter  

Had the wheel pants installed and went to fly it again. Nice looking...

213140A1 C3C3 4054 900C 80D6B221CAF4
E24D13D3 62FF 4822 B0BA 7D232D7E8B52
A33B1E59 011F 4CA9 9973 5A358054E52A
D181110A 4018 4774 83AD B27E150514B0

 


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