ok first the boring details

after flying a big lift more then 12 years ago
i stopped this wonderfull hobby because of women ( i now i now)

some 4 years ago i picked it up again (devorced) and bought from a hobbyist
who,s eyes where bad (getting old) but a smart man! since his engines where as old and worn out as him ( no offence!) a Big lift , pilatus porter ,etc etc
now the guy was smart , after flying it for the first time i had real poor power from the OS FS 120 . a crash followed ( low altitude)
some how i still had it in me, not to stall the plane while in take off
(i guess the lessons i had 12 years ago still ringed some bells)
damage: landing gear , front and rear
i dropped again the hobby picking it up 4 weeks ago
(new girlfriend but more "giving ;-) i guess the upgrade from 1.0 to girlfriend 3.0 helped ;-)

ok now the FS120 was obsolete since this engine was prodused in ,84
cam shaft worn out so basicly r.i.p. no power anymore

now i ordered a G23 Zenoah after reading and following this amazing forum
included a fema autostart

now here,s the question:

schould the engine be mounted slightly "of"looking to the right??
or just in strait line with the plane?
since i always saw that most smaller engines where a little of
also i flew a cessna 152 ( real plane) and it always wants to go to the right in take off because of the torq
does this means i have to mount the engine a little in that direction?

also since this is a gas engine any suggestions on gas holder ( tank)?

even more: i am a so called slow flyer , so i want to do lots of landings take, offs
do i cary lots of fuel? if so should i move the tank to a more balanced piece in the plane?

where do i measure the balance? 1/3 of the wing , looking from nose to rear?

also would after learning again to : "Fly" adding ailerons and landing flaps make it even more better to control and do real slow landings?

(i have 35 hours lessons ( and solo)on a cessna 152 and using the flaps at 30 degrees makes it really slow in landing and holding the power
and for take off 10 degrees makes it slow but fast lift offs)

thanks for your time

and forgive my bad englisch writing somehow i speak it better

Regards

Sandor ( netherlands)

Hi Sandor: I'll respond to this in my typical fashion. type in rcfaq.com, Click on flying faqs, scroll to trimming your plane, and click on that, explore the whole site, it has a wealth of info. on it. To trim a plane proper with out any instructions to go by, you have to fly the plane in different attitudes, and observe how the plane reacts. I won't go into it because this site explains it better then I could on my best day, in fewer words, that even I can understand. I know this is not much immediate help, but it is the best I can do, sorry. Always glad to help if I can. Garry

on the slow rpm engine you will probably need 2 or 3 degrees of right thrust,to put offset in before or after you fly the plane is up to you,unless the planes call for offset I'll fly the plane then trim as needed.With G23 you'll get about 3 times more flying time on the same amount of fuel as with the 120 engine,fuel tanks are interchangeable, the fuel line,tank stopper,tank vent lines and clunk lines need to be changed to gas. I try to set my fuel tanks as close to the c/g as practical,I would leave the c/g where it's at,then experiment after the plane is flying again

Yes, you will probably require about 3 degrees of right thrust and maybe an equal amount of downthrust, especially if you have a high wing plane. The Walbro carb lets you put the fuel tank anywhere you like as it has a built in fuel pump which works very well. As mentioned above, the G23 is very economical, you will probably get two to three minutes run time per ounce of fuel.

thanks to all of you for the nice tips!

zenoah is running like a charm!
balance is good
and lots of power!

i am also looking on another engine that looks good for my other
plane i got

it is much smaller then a zenoah

check it for yourself :http://www.mvvs-nl.com/

these are very nice engines , also saw them in action


reg Sandor