New Model, first adventure into petrol

Hi

First Question; :whistle:

Anyone know where i might be able to get some build instructions for this x-tech Yak....

Ta

Simon

simonbloke wrote: Anyone know where i might be able to get some build instructions for this x-tech Yak.

Is this it? X-Tech Yak 30 -35cc.

PhilF51 wrote:
Is this it? X-Tech Yak 30 -35cc.

No its not, this is for the new composite models that X-Tech now make

Simon's is a completely different model

simonbloke wrote:
Anyone know where i might be able to get some build instructions for this x-tech Yak...

Very unlikely that you will find any, but it should go together like any other model you have

If you get stuck, post a pic on here and I am sure someone will have the answer

Thanks.

The model is built, its the setting up of the ailerons, rudder and elevator i was thinking of.

Its the engine fuel system, electrics, radio and battery set up that's missing !!!

Has anyone got a rough plan of how the system of a petrol model should be, what i need to get etc

Simon

These are the starting points I use, I am sure others have their own preference but I have found this gives you a safe starting point

Ailerons - 16 - 18 degrees
Elevator 10 - 12 degrees
Rudder 20 degrees
C of G just forward of the center of the wing tube

Engine set up

Make sure you use tygon fuel tube, I use a three line set up, one to fill the tank, one to the engine and one vent line, you will then need a kill switch and a way off operating the choke, a simple push rod that you can reach through the cowl should do

Below is a link to a good video on how to plumb the fuel tank

Hi Simon

The Rcexl remote ignition switch is good and not too expensive (link below). Some people use just a mechanical switch, but to me they are worth the extra as you can kill the engine in flight if necessary, which is a good safety feature and could save the model.

C of G should be between 25 and 30% of average wing chord. As Chris says this will be typically on or just in front of the tube.

Other than the tank plumbing, everything else is like any model, make sure you have sufficient battery capacity and that all linkages are of adequate strength etc

www.kingslynnmodelshop.co.uk/p2789/Petro...yPl9ICFYsW0wodQDcKJg

Cool Thanks.

What about the batteries, do i need one for ignition, two seperate batteries for reciever and servo's with somekind of power safe and regulator .

With the model came some bits and bobs all seems too complicated with two on off switches for two battery packs a couple of becs and a linear voltage reglator (Bec)

I have a 12 chanel futaba rx that is telemetry capable this will hopefully work if i have a reliable power sorce for the system ?

Simon

Ive advised Simon that the servos are not high voltage Li-po capable so have recommended he uses LiFe batteries for the radio to avoid needing regulators. - Simple is best.

I don't know if the Roto ignition unit will take Lipo voltage.