Ft tiny trainer build

[The Hangar]

I’d get a 12 amp.

 

[bracesport]

@Tony123 - I use a heap of these (prices vary heaps this one is retail in NewZealand) on TT's and even on my 1.5m powered sailplanes - I typically use 30amp ESCs - together they are a good setup that has never failed on me - 2 cell and 3 cell lipos

 

[The Hangar]

I’d get a 12 amp.

Never mind. I checked your motor and it looks like a 10 amp esc would be just fine.

 

[Tony123]

Never mind. I checked your motor and it looks like a 10 amp esc would be just fine.

Okay, and would the built in bec be fine?

 

[The Hangar]

Okay, and would the built in bec be fine?

Yes, it should be. It’s a little small but for only two servos it’s ok.

 

[Tony123]

What about 4 servos?

 

[The Hangar]

Yes, it should be. It’s a little small but for only two servos it’s ok.

Oh, just saw you’re using 4 servos. I would get one with a 3 amp bec.

 

[Tony123]

Oh, just saw you’re using 4 servos. I would get one with a 3 amp bec.

Ok!

 

[Tony123]

Does it matter if it is a Quadcopter esc?

 

[Grifflyer]

Does it matter if it is a Quadcopter esc?

No, you just want to make sure it has a BEC.

 

[Tony123]

Okay thanks!

 

[Tony123]

So the esc I found had no low voltage cut off and no temperature cut off is this okay or no?

 

[Tony123]

Do I use digital or Analog Servo if one or the other why?

 

[The Hangar]

So the esc I found had no low voltage cut off and no temperature cut off is this okay or no?

I use those, just jand and check your battery voltage after 5 min. On the first flight. You don’t want to go below 3.7 volts per cell, so in a 2s when you land the battery should read about 7.4 volts. I’m guessing in the TT you’ll probably get 5-10 minutes of flight time, maybe 15 depending on how you fly.

 

[The Hangar]

Do I use digital or Analog Servo if one or the other why?

I honestly don’t know what the difference is. @Hai-Lee @FoamyDM or @rockyboy could help I bet.

 

[Tony123]

I use those, just jand and check your battery voltage after 5 min. On the first flight. You don’t want to go below 3.7 volts per cell, so in a 2s when you land the battery should read about 7.4 volts. I’m guessing in the TT you’ll probably get 5-10 minutes of flight time, maybe 15 depending on how you fly.

Okay how long do you think I would get with a 1000mah 2s lipo?

 

[The Hangar]

Okay how long do you think I would get with a 1000mah 2s lipo?

I'd say 10 minutes with 1/2 to 3/4 throttle, which is what you will probably be flying at.

 

[FoamyDM]

I honestly don’t know what the difference is. @Hai-Lee @FoamyDM or @rockyboy could help I bet.

Use what you can get hold of. They will both work well. -> The differences won't be noticable on a TT.

Detail:
Digital has is faster to respond & more is accurate in it's position, but has a higher no-load Amp draw... pulls more juice. when doing nothing.
Analog vs. Servo.
https://www.islproducts.com/designnote/servo-motor-fundamentals/

Good Servo info:

 

[FDS]

Don’t use a 10A esc.
You want at least a 20. I use 30A esc’s on all my smaller models, the size difference isn’t much and the spare capacity keeps them cool. 2s 1000mah is a bit heavy for a TT imo. You want it light or it’s go8ng to feel very fast keeping it up in the air. You potentially have a bigger motor up front already, more weight is not a good idea.

 

[rockyboy]

I honestly don’t know what the difference is. @Hai-Lee @FoamyDM or @rockyboy could help I bet.

The practical difference is analog servos are cheaper and use 1/2 the electricity - while the digital are typically stronger and respond a few hundredths of a second faster. For a Tiny Trainer (or any foamy really, except maybe a 100 mph+ racer), I recommend saving your money and go with the analog servos.