mrjdstewart
Legendary member
ok, long story try and make short...
original owner bought the yellow T-28 trojan from banggood.com. i guess he had a heck of a time with it and mostly crashed it.
he then gave it to another member of the club which spent a lot of time and money on it, he installed a turnigy plush 40A, a separate 5A BEC, high dollar receiver, ...
he flew it and claimed the curse over, then promptly gave it to me.
i was tickled pink but also a little intimidated. i had never flown an airplane this complex. 9 servos in total and much higher speed and size than i had flown.
cut to chase. 1st maiden ended after 2 secs. spun to the left and thud. second got about 30 ft in the air then cut out, and thud.
damage wasn't bad so i took home and fixed. tried to fly again but on motor test it kept sputtering. it did not maintain full power constantly.
so after lot's of swapping, it turns out the external BEC he had wired in was the problem. when i originally tested the ESC, i had kept the BEC in the circuit. after eliminating all other options i removed the external BEC entirely i had to remove the turnigy 40a ESC due to him removing the signal wire, and replaced it with a thunderbird 54A ESC/3A BEC. and it worked.
cut to today. i have a senior member of the club who also has one of these planes to maiden and trim for me. he get's it up, trims it out no prob, and lands like a stud. he had only been up for maybe 2 mins so i immediately took back off at the stick and had a great flight. brought it in dead stick for a perfect landing
now i'm excited and go and swap batteries. i wait about 10 and hook things up. taxi out and up into the air. this time i'm gonna test the flaps and all the other things i had not played with yet. all worked perfectly and i was able to slow the plane to almost a crawl. flying inverted no issues
timer started beeping at me so i brought it in for final approach, flipped down the gear, and then lost motor.....thud.
thankfully i thinks it's repairable. needs a new prop and some glue but i think it will fly again
i have heard issues with this plane not having a large enough ESC as well as with the 9 servos, the BEC could easily be overtaxed.
i plan to reduce all possible draw. it does not need flaps so i think i will just unplug the servos. no worries about them drawing power.
we will see...
in the meantime i ordered myself one of these...
laters,
jason
original owner bought the yellow T-28 trojan from banggood.com. i guess he had a heck of a time with it and mostly crashed it.
he then gave it to another member of the club which spent a lot of time and money on it, he installed a turnigy plush 40A, a separate 5A BEC, high dollar receiver, ...
he flew it and claimed the curse over, then promptly gave it to me.
i was tickled pink but also a little intimidated. i had never flown an airplane this complex. 9 servos in total and much higher speed and size than i had flown.
cut to chase. 1st maiden ended after 2 secs. spun to the left and thud. second got about 30 ft in the air then cut out, and thud.
damage wasn't bad so i took home and fixed. tried to fly again but on motor test it kept sputtering. it did not maintain full power constantly.
so after lot's of swapping, it turns out the external BEC he had wired in was the problem. when i originally tested the ESC, i had kept the BEC in the circuit. after eliminating all other options i removed the external BEC entirely i had to remove the turnigy 40a ESC due to him removing the signal wire, and replaced it with a thunderbird 54A ESC/3A BEC. and it worked.
cut to today. i have a senior member of the club who also has one of these planes to maiden and trim for me. he get's it up, trims it out no prob, and lands like a stud. he had only been up for maybe 2 mins so i immediately took back off at the stick and had a great flight. brought it in dead stick for a perfect landing
now i'm excited and go and swap batteries. i wait about 10 and hook things up. taxi out and up into the air. this time i'm gonna test the flaps and all the other things i had not played with yet. all worked perfectly and i was able to slow the plane to almost a crawl. flying inverted no issues
timer started beeping at me so i brought it in for final approach, flipped down the gear, and then lost motor.....thud.
thankfully i thinks it's repairable. needs a new prop and some glue but i think it will fly again
i have heard issues with this plane not having a large enough ESC as well as with the 9 servos, the BEC could easily be overtaxed.
i plan to reduce all possible draw. it does not need flaps so i think i will just unplug the servos. no worries about them drawing power.
we will see...
in the meantime i ordered myself one of these...
laters,
jason