Pietenpol bigger battery.
- Thread starter westray
- Start date
pie is amazing
Junior Member
No, its way too heavy for the Pietenpol's airframe, if it would even fit, lol.
Tonero311
Well-known member
I built a pietenpol a month or so ago. I used 1500mah 3s Lipo, 30a esc, CF2812 emax motor, 2 13g emax servos on a 7x5 prop. AUW was 478g. It was a pig, but it flew....badly in my opinion.
I had to attach the battery on the bottom like an external fuel tank. Didn't help having a third of the weight basically between the landing gear. Seemed to give a pendulum effect making it seem very unstable. The extra weight will raise the stall speed too I find.
That particular aircraft is now retired after 4 flights, 3 crashes and 2 dodgey repairs. Getting setup to build another 2 with the correct set up this time. Hopefully it'll handle a lot better and I'll have a spare in case of a crash too. Let us know how yours goes.
I had to attach the battery on the bottom like an external fuel tank. Didn't help having a third of the weight basically between the landing gear. Seemed to give a pendulum effect making it seem very unstable. The extra weight will raise the stall speed too I find.
That particular aircraft is now retired after 4 flights, 3 crashes and 2 dodgey repairs. Getting setup to build another 2 with the correct set up this time. Hopefully it'll handle a lot better and I'll have a spare in case of a crash too. Let us know how yours goes.
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FDS
Elite member
I use the little 1806 2400kv motors from Hobbyking in all my minis, they are really cheap and work great with 6x4 or 5x3 props on either 2 or 3s.
That Piet is totally rebuildable. My SE5 had one wing ripped off and the top wing detached, fixed up fine. Use a hairdryer or variable temp hot air gun to undo the hot glue, the thin parts like struts can be joined with cocktail sticks across the cracks and a bit of glue, white Gorrilla glue is good for repairs, or print the plan pages you need to cut new struts.
Unless the fuselage is in half and the wings are torn in more than one place most FT planes can be repaired.
That Piet is totally rebuildable. My SE5 had one wing ripped off and the top wing detached, fixed up fine. Use a hairdryer or variable temp hot air gun to undo the hot glue, the thin parts like struts can be joined with cocktail sticks across the cracks and a bit of glue, white Gorrilla glue is good for repairs, or print the plan pages you need to cut new struts.
Unless the fuselage is in half and the wings are torn in more than one place most FT planes can be repaired.
Tonero311
Well-known member
Going to scratch build another 2 this time. With recommended set ups. Have a spare one incase I total the first and can have a back up ready to go straight away. Just got 4 12a emax esc's for the price of one and waiting on 2 2204 2300kv motors coming. Be using 6045 props. Just following the recommendations to the letter this time. See if she flies much better and easier.
Thanks for the info too FDS. I'm guessing prop sizes will be very similar to yours if I'm switching between 2s and 3s batteries. Or what would you recommend if I'm dropping down to 2s(give my inexperience a chance to catch up perhaps with more docile set up lol).
Thanks for the info too FDS. I'm guessing prop sizes will be very similar to yours if I'm switching between 2s and 3s batteries. Or what would you recommend if I'm dropping down to 2s(give my inexperience a chance to catch up perhaps with more docile set up lol).
FDS
Elite member
You will want a 2400kv motor for 2s, the minis, even the biplanes, like a fair bit of airspeed to be happy.
The 2204 runs best on an 850mah 3s, run it at a lower throttle, they cruise well on that. It will hang off the prop on full throttle! Power is not a problem. 6x4 prop runs great on that. A 5x3 works too, they run best a little faster.
Just build as light as possible.
I prefer a 20A esc as well, gives more headroom. I ran a 2204 on an old 20A Hobbyking ESC and the esc got hot enough to feel the heat on the outside of the nose!
The 2204 runs best on an 850mah 3s, run it at a lower throttle, they cruise well on that. It will hang off the prop on full throttle! Power is not a problem. 6x4 prop runs great on that. A 5x3 works too, they run best a little faster.
Just build as light as possible.
I prefer a 20A esc as well, gives more headroom. I ran a 2204 on an old 20A Hobbyking ESC and the esc got hot enough to feel the heat on the outside of the nose!
I scratch built a FT Pietenpol recently and have been having a blast with it. I had an eflite park 280 in my box of random parts and so far have been swinging a 6x4 prop. With a 1300mAh 3 cell (about as big as will fit) I've been getting 10-12minutes of flying time in fairly brisk, gusting wind. I did have to scrap the FB gear struts to bend my wheels further forward; with that big of a battery, it had a tendency to want to rock forward while taxiing.
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