seaside535

I took the retract off again making sure everything is setup correctly, I made a video, ill post it

seaside535

cactusflyer

My Feedback: (4)

It looks like you have too much UNLOAD TIME on the nose gear. It appears to extend, lock and then unlock a bit. The unload time can be reduced on the controller to reduce the amount the unit unloads (unlocks). Give it a try.

Tailwinds,

John

gunradd

My Feedback: (9)

I agree... It looks like it locks then it moves at the end slightly and unlocking. I don't think that slop is an issue because of the angle its at. When the motor drives it to the over center position it wont have slop. I have the prototype here but I am using the xicoy controller. Are you using the xicoy controller or JP controller? You have some kind of sequencing issue or other issue.

FenderBean

And whats going on with the gear door closing some at the same time?

Auburn02

My Feedback: (1)

Even with the lock arm "unlocking" why or how would an electric gear collapse? If the gear has a drive collar that is turned by a worm screw (terminology?) like most others, even if there is no mechanical lock in place how would it be able to move without turning the motor?

gunradd

My Feedback: (9)

no way the worm gear is spinning. Something must also be slipping on a shaft. Like the part he shows with play. Think that has some small set screws.

seaside535

Im using the Xicoy controller,

seaside535

The gear door closing slightly was not suppose to have been filmed, i was trying something in one of the sequence steps. That's fixed.

seaside535

Lowering the Upload did help, it seems to almost stay locked, the motor seems to want to reverse a turn, that part is what has to be figured out.

seaside535

all the shafts have flat spots. i will go back and re-tighten everything

FalconWings

My Feedback: (57)

Correct....the failure mode of a worm gear drive is to stay in place, even under max loads.

dribar

Gents,

Just picked up a used F16. Where is the balance point measured from?

Thanks.

mongo

My Feedback: (15)

dr,
good luck with an answer on that one.

i been waiting since 5 jan for that info.

dribar

Chris -- any info on the CG measurement? Where is it measured from and what is the starting distance?

Thanks.
Dan in Sarasota (dude with the blue monster T1-mini)

seaside535

almost all of the cg starts where the wing connects to the fuse , i have mine set at 160mm back

dribar

My K85 is on it's way - should be here Friday so I'm working on setup. I've got a conventional elevator / aileron setup so far.

Are you guys running flaperons? ... or just landing without flaps at all?

Thanks.

gunradd

My Feedback: (9)

That CG sounds correct. think my son is using the stock CG location.

right now it just has conventional ailerons and stabs.
it flies great like this.

i will change a few things before him and I go fly next time.

on F16s I pretty much set them up like this.
Condition flaps up.
flapperons up normal ailerons and normal tail set up.

flaps down.
flapperons down (not to much throw because you loose allot of aileron authority) the goal is to give you a little drag. I like to add tailerons in with flapperons to help with roll authority.

this set up will give you a clean flying plane at speed with axial rolls and with flaps down you get drag and extra roll control.

remember all F16s it does not matter big or small need up elevator for the neutral point.

dribar

On this model, you do that by setting neutral with the trailing edge of the elevator flush like this (right?):

gunradd

My Feedback: (9)

that will get you close.

dribar

Thanks Chris.

Does this airplane look familiar? I think you did a repair on it for the previous owner.

gunradd

My Feedback: (9)

yep! That color was not fun to work with lol.

the K85 is allot of motor for this plane. You will be at half throttle most of the flight. She will high alpha like a bigger F16 though. So don’t be afraid to do some passes and get a feel for her slow. On an F16 in an alpha the rudder is very effective at controlling heading so play with that also.

try and keep her close in because she is a rocket ship and will get out of visual site fast.

dribar

Question: I have all three batteries back by the turbine and my CG is at @ 150 (nose heavy). The jet weighs in at 17 lbs ready to go with an empty tank. I think it is supposed to be 14.3 dry, so did I pick up 3 lbs somewhere? Not too sure what to do here. Nothing is in the front besides the essentials. All batteries are close to CG and next to the turbine. I re-measured the 160 desired CG and I have it marked correctly, so my 150 measurement is accurate.

Any thoughts? Just add weight to the tail or fly it at 150?

gunradd

My Feedback: (9)

how are you measuring the CG?

aehaas

Dan, I asked Dirk about the full weight of this model. Here was his reply:

"Our Demo F-16 weighs in at 17.29lbs RTF with a K-85, full UAT and 1/4 tank of fuel using Spektrum gear."

Ali