alsalsals

Hello guys!
It was a long time before I maidened my Funtana. Pretty cold weather was here in Latvia But it was happened. I was VERY impressed by MVVS motor performance! And it is absolutely no problem to start motor in -10C! (i think it is about 14F). [link=http://www.nakotne.com/request.php?124]Here you can find maiden flight video.[/link] [link=http://nakotne.com/e107_plugins/kig_menu/index.php?view=album&albumId=71]And here are all building photos.[/link]

STG

My Feedback: (26)

That looks sweet! Most likely a "best bang for the buck" gas combo.

Scooterpilot

My Feedback: (5)

Just watched your video... Nice flight....looks like that gasser works great, especially in freezing weather.

Scooterpilot

My Feedback: (5)

Has anyone relocated the rudder servo over the CG, made it pull/pull and installed a 1.6 gasser? Or, if the above is done, will it require counterbalance weight be intalled on the tail due to the added weight on the gas motor?

Regards
Chuck

Balsa Steel

My Feedback: (3)

The CG favors the nose with this combo. I think a pull pull setup may keep you out of the "hard" 3D envelope of CG range without some serious thought going into placement of the rest of your equipment.

Adding weight is always a last resort. [:'(]

pe reivers

Aleksanders, Thanks for posting the video and building pictures. You are a quick worker.
My projects typically take longer. (a lot)
Your maiden ended a lot better than that poor GeeBee Especially the full stall landing was impressive.

STG

My Feedback: (26)

The pipe pulls the CG back--that and your gas tank is over CG. You can mount you batteries wherever you want. The F90 3D's great and flys better overall without an aft CG. Bottom line is I can't see needing to move CG back any further back by adding weight and if you did just 1 or 2oz in the tail goes a long long ways.

alsalsals

I'm was not a GeeBee pilot I just put GeeBee together for friend of mine... I do not like fast planes, especially GeeBee. But i just got a satisfaction from building process But Funtana's style planes is my favorite. I thing, when spring comes, i will spent a lot of great flying hours with my Funtana.
Thanks all for great words! Cheers!

captinjohn

dick Hansen: Do you think the Funtana .90 would fly good with a 40 OZ gasser (conversion engine) ....like a Toro 25cc. Not going to do 3D....just normal aerobatics. thanks Capt,n

erikpmort

My Feedback: (52)

yeah he also did a toro.... it would be fine

gpar

Does anybody know if the funtana 90 with a MVVS 26 gas and the so called "stock muffler" has enough power for hovering and 3d ?.

pe reivers

If you mean the small dustbin muffler, the answer is no. Ideal for a cub though.

VanWidick

My Feedback: (22)

So what I'm getting from all these posts is that if you dont buy a tuned pipe for this 1.6 gasser then it seriously lacks in power.

Dick Hanson or anybody else with this setup, do you harrier your Funtana 90 with the Evo on it? If so how does it do with throttle response, is it smooth?


Also would you go any less on the 18x8 prop ?

Has anybody tried any other props like a APC or Wood Prop ?



Its not my ideal situation to hover on the deck at idle but If thats the case Im up for it. LOL

Thanks,

Van

rmh

The non tuned , in cowl "mufflers" seriously wreck any small engine ---plus they are noisy .
on a two stroke they can kill from 25-50% of the power available with a quiet tuned setup . glow or gas . that is fact .
by numbers these are typically numbered as 18x6 to 18x8 but they are NOT all the same
the 26 is smooth even from idle to top revs - best performance props turn 8500-9000 static - glass/wood or plastic filled .
So far I have not been able to kill the engine in the air with any amount of thrashing around or loooong extended flat spins or falling leaves etc..

captinjohn

I would say Mr Hanson is right on. Look at any Jet ski..dirt bike..snowmobile..fast ATV...or about any 2cycle powered device where power is tops. They all have tuned pipes....most right from the factory. Thats the best way to fly!!!!!! Capt,n P.S. My pup is watching you back!!!

coronabob

My Feedback: (10)

My converted OPS 1.80 turns a 18X10 7,800 on a pipe. It would turn a 20X10 at 7,500 but the accelleration was bad. I recently pulled the pipe since the header kepk breaking. Now it peaked to 7,300 before dropping to 7,100 or so.

My 14lb 14oz Aeroworks profile Extra flew like crap w/o the pipe - it could hover with. To make matter worse, the non-piped OPS vibrated a whole heck of a lot more. I know this since the wing screws loosened after each flight, the ignition box started to delaminate its mounting board, my rudder hinges started to break, etc.

I am taking delivery of a MVVS 1.6 w/pipe from Pe Reiver in May. This combo will go on my second F90. I am flying my first F90 with a ST G2300 - super fun and very fuel miser. I agree that the F90 is a slow, low and personal kind of bird. There's no need to fly WOT unless the nose is pointed up. I want to put a pipe on the G2300 now.

daveb86

My Feedback: (4)

is there absolutely NO difference between the evo and the mvvs 26? what carbon pipe to get and where? Thanks Dave

VanWidick

My Feedback: (22)

Today was my 2nd day of really running the Evo 26GT and then I ended up having to tune it. I pretty much left it alone on the factory settings until now, the transitions were sluggish.


Adjusted the low end to get the low to medium transition set, had to end up going richer about 1/4 turn. Sure does make a big difference on the low to medium transition.

Ok then went to check on the high end which had to end up adjusting it also, it would fall off after about 20 seconds or so of wide open. Ended up richen it up approx 1/2 turn and was able to get the RPM range I was looking for.

Now the transition from idle slamming throttle to wide open is flawless EVERYTIME.

THEN

Went to work on the start and end points in my 10X to adjust those because I have my travel adjustment on throttle at 100% which makes the throttle range precise all the way through.








Runs like a champ so test flight will be coming soon.....

Van [8D]

rmh

nice looking installation - 20 seconds at wide open on th ground is too long - you will easily overheat it doing that - run a bit riche -so that full clean power onlyshows up in a vertical climb-
these engines are more critical on mixture than glow - once you find the best power -in avertical - that's whre you wanttto run it - if it is a bit rich in level flight - that is normal.

frieshoo

My Feedback: (20)

I saw this combo in action this weekend. I'm ordering it today. MVVS 26 gasser with the restrictive incowl muffler, and top flite prop... Still had acceptable 3D power.... I'll post some video in a couple days...

thefunkyhobbit

Hi Guys, what are your thoughts on fitting a moki 180 glow to the F90?
Thanks,Mark

Halogen

I have just put a 26gt on a Hanger 9 showtime but I have a problem. I have a bcm style wraparround muffler on the inverted engine and since this muffler is at the back of the engine, I had to move the engine forward so that the muffler can fit between the engine and firewall. The problem is that now the cowl is too short since the engine is too far forward !!! What can I do !

I can move the engine back close to the firewall but this would mean using a tune pipe but I would like to avoid that since tune pipes are a bit expensive.

I was reading and saw that someone has a review of the Hanger 9 showtime with an evolution 26gT but I do not have this magazine so I would really appreciate if I can have a photocopy of this review or any other help would be greatly appreciated

Spoiler

Go for it and let us know! Mine has a M 135 and its ballistic as far as I am concerned so a 180 would probably rip the firewall off. I'd love to see it fly...

VanWidick

My Feedback: (22)

I had this problem with fitting the Evo 26GT on my Funtana 90.

The back of the pipe is like 1/8th Inch from the wall on the airframe.

I thought I was going to have problems with heat but havent had an issue at all.


As long as its not touching you should be fine.


Hope this helps.

Van [8D]

Halogen

My problem is that when you put the evolution 26gt and the muffler, which is behind the engine close to the firewall, the cowl can not be fitted, i.e the cowl has to be longer or the engine has to be placed closer to the firewall. So the cowl can not be made longer (unless you have the time to play arround with fibre glass) or just move the engine backwards. This will mean removing the wraparround muffler and using a tune pipe

I got hold of 3d flyer mag where there is great article on showtime+evolution 26 GT and in fact thats what he did, he had to use a tune-pipe and the cowl fitted perfectly !

In the case of the Funtana 90, the Cowl is much larger and longer and hence you can accomodate a 26GT using the wraparround muffler.

I will order the tune pipe and let you know how it flew !

cheers