leventx

My V2 with one tank (with fuel） ..700cc smoke ..K320 . 3x 7.4 3300 and 1 9.9 6000 battery 25.3kg take off

cmjets

Hi Mephisto friends, this is the 6L CMJETS tank version for V2.

JTFDEZ

Hi fella´s.... just your opinion.....for the vector, what do you think? stock clevis or alu ball links??

Blade971

My Feedback: (13)

Use stock clevises. They are steel.

husafreak

My Feedback: (3)

I second that. My reason is also because we know the forces acting on this jet are huge, the vector as well, the clevis design is known to work. Changing anything from the CARF recommendations is exercising your skill as an engineer and should not be taken lightly.

flyer1966

My Feedback: (3)

Does anyone know what size and thread pitch the allen cap screws and Tee nut inserts are that hold the Mephisto fuselage halves together?

Dave Wilshere

Std M4 thread guess that’s 0.7

Scott Baker

Changing out my Spektrum/cortex set up to a competition SR2 on the atom.
What sort of current draw is everyone seeing with the mephisto turned on in standby?
Mine seems to fluctuate between 1.4-1.8amp on the display.

Dave Wilshere

That is a little high. Mine with JR servos sits around 1A depending on flaps up/down

AEROSHELDON

My Feedback: (99)

I don't reall mine exactly but with MKS it was really high, like 1.5 tp 2 amps. They pull like 440 ma at idle. Hungry buggers.

Scott Baker

Okay so nothing to worry about then.
I have JR 8911 on all surfaces, in take off flap position this was my reading 1.4-1.8amps.
I have herd of folks setting alarms for too much amp draw whilst in flight, what sort of numbers would you recommend for a warning?

Also, since I have swapped out the cortex for the igyro sat what sort of gain figures is everyone using on:
Flight surfaces
Vector/3D mode?
Also using the gps 3

Dave Wilshere

Have you read the figure with the wings off…and then with the back end disconnected? Because it’s not an acceptable figure for 8911’s which are super low draw at idle.
Futaba servos are known to be very high draw, then Savox and MKS. But JR Propo servos are very low. New MacGregor 8555 one of the lowest ever!

Scott Baker

Thanks for your input Dave
This Mephisto has 75 flights on it previously using spectrum, so never saw the amp draw until moving over to powerbox. Ran a Y lead on the tailerons previously, now using the auto matching feature on the competition.
Rear fuse disconnected I'm getting 0.9-1.3 amps
Rear fuse and ailerons disconnected fluctuates from 1-2amps
Only flaps disconnected 1.1-1.8amps
Only tailerons disconnected 1-1.5amps

JSF-TC

My Feedback: (2)

Why not start with just the electronics connected (and no servos) and see what the base current draw is. Then add just one servo at a time and see if there are any that are higher than average.

I'm guessing with around 10 servos in the model you're only pulling in the order of 100mA per servo at rest.


Paul

Dave Wilshere

Those figures don’t make sense to me!

David Gladwin

If you use a PB. Servo Bridge, one can evaluate individual servo loads in flight using the telemetry.
​​​​​​…..and, of course with the Competition SR2 you can measure total current consumption, really useful data !

AEROSHELDON

My Feedback: (99)

This is my new Kingtech 320 in the pipe..... it is very high up in the pipe. Any suggestions on why this might be? Is this what other KT 320 users have seen? It's not like the pipe is hanging way low or anything.

Dave Wilshere

Look at post 970. I think your pipe is low at the front

AEROSHELDON

My Feedback: (99)

Thanks Dave it appears so. Temporary alignment shows this as a fix. Now that I have the height I’ll add a better base on it.

Dave Wilshere

6 years ago today the thread starter was test flown at my local club, I’ve managed to fly it each year nearest the date, but today is the exact anniversary. Weather is really not good with 30+mph wind gusts forecast, tradition is tradition, so I went and had two flights. No official photographer was available…so even the slowest flying and knife-edging machine available should have allowed Garry to get some decent shots…Mmm not really!

I must try to get the larger pipe fitted in 2024, I’m still flying the original pipe and ducting on a JetCat P-250 Pro and it smothers it somewhat.

Still a brilliant, reliable aeroplane.

AEROSHELDON

My Feedback: (99)

Congrats Dave, glad to see you are still enjoying it. Here's to 10 more years!

Svein Erik Riis

Hello.
I'm almost ready for the maiden on my Mephisto V2.
All I need is to set center on my elevators.
Wonder if anyone can post a pic of their elevators at centerpoint?

Dave Wilshere

Line the elevator leading edge seam with the ‘lurk’ seam and you will be close.
Tiny amount of down with full flap depending on balance

Svein Erik Riis

Thank you, Dave.
Setup tomorrow, and then she' ready.

stormseq

Hi guys,
I have a question regarding the satin/matte finish on the Neon cayman scheme.

How is the paint holding up?
Does a satin/Matte paint require any special care?

How does the visibility compare to the gloss finish.
If given an option would you rather opt for a matte or gloss finish on the next one?

Thanks
N