RE: Peakmodel Extra 260 25%

RE: Peakmodel Extra 260 25%
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RE: Peakmodel Extra 260 25% - 9/25/2007 4:18 AM

nowinkk

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If you can tune the carb with the cowl on, by all means, go ahead and fix the cowl. Flying without the cowl is definitely different.

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RE: Peakmodel Extra 260 25% - 9/25/2007 4:58 AM

rkingmanila

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Hey Royster, sorry for this very late post. Here is the pic of the cowl. sorry for the bad pic. it was taken using my camphone.

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RE: Peakmodel Extra 260 25% - 9/25/2007 5:06 AM

rkingmanila

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here she is last weekend at the hangar. the spe26 runs well. was supposed to fly her but it rained all day, will try next weekend again.

< Message edited by rkingmanila -- 9/25/2007 5:07 AM >

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RE: Peakmodel Extra 260 25% - 9/25/2007 5:17 AM

RoysterDW

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Cool!

Thanks for the pics!

Got my Sullivan Dynatron starter today so hopefully starting will very easy.

I might just try a re-tune again tomorrow and see if I can get away with not taking the cowl off. Its not the on and off that bothers me but I dont want to crack it pulling it over the stack every time.

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RE: Peakmodel Extra 260 25% - 9/25/2007 7:58 AM

Jag001

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Well,

I maidened mine last week, only the one flight on it as the engine (two stroke 120 Super Tigre) was really not on song at the time, just enough air time to get it trimmed out for basic flight, a couple of loops and rolls but nothing spectacular for the first flight.

I was most impressed with how nimble it was, verrrrrrrrrrrry quick to enter into a roll, elevator is verrrrrrrrry powerful, relatively low and still had more elevator than I needed.

What impressed me most of all was the accuracy of the marked CG on the plan, if you get your CG between 133 and 135mm from the leading edge of the wing (measured at the fuselage side) then you will be pretty close and comfortable for flight. The other thing that impressed me was again an accuracy thing, 3 digital notches of elevator trim was the only trim required. Aileron was spot on and rudder did not need any trim for vertical climbs, so engine thrust is good.

I really look forward to getting the engine sorted and giving this thing a real work out.

For the person that was asking before, my maiden flight was without cowl and I had no problems at all, I do expect some minor trim changes with the cowl on, however the plane is stable enough without.

Cheers,

Jeff

Heres some details of my setup up

Eninge : Super Tigre G2300
Pitts style Muffler.
16x10 prop
Futaba 14mz radio and 7channel pcm receiver
single battery 6v 2300mah NMh
heavy duty switch harness
5 digital metal gear servo all 12kgs = 1 rudder, two elevators, two aileron. Throttle servo a standard futaba analogue.

Any questions I will be happy to try and answer

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RE: Peakmodel Extra 260 25% - 9/25/2007 8:16 AM

nowinkk

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quote:

ORIGINAL: rkingmanila

Hey Royster, sorry for this very late post. Here is the pic of the cowl. sorry for the bad pic. it was taken using my camphone.

A beautiful cut out on the cowl, but it is for SPE26 gas engine. I doubt if SPE40 will go in.

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RE: Peakmodel Extra 260 25% - 9/25/2007 9:01 AM

RoysterDW

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quote:

ORIGINAL: Jag001

Well,

I maidened mine last week, only the one flight on it as the engine (two stroke 120 Super Tigre) was really not on song at the time, just enough air time to get it trimmed out for basic flight, a couple of loops and rolls but nothing spectacular for the first flight.

I was most impressed with how nimble it was, verrrrrrrrrrrry quick to enter into a roll, elevator is verrrrrrrrry powerful, relatively low and still had more elevator than I needed.

What impressed me most of all was the accuracy of the marked CG on the plan, if you get your CG between 133 and 135mm from the leading edge of the wing (measured at the fuselage side) then you will be pretty close and comfortable for flight. The other thing that impressed me was again an accuracy thing, 3 digital notches of elevator trim was the only trim required. Aileron was spot on and rudder did not need any trim for vertical climbs, so engine thrust is good.

I really look forward to getting the engine sorted and giving this thing a real work out.

For the person that was asking before, my maiden flight was without cowl and I had no problems at all, I do expect some minor trim changes with the cowl on, however the plane is stable enough without.

Cheers,

Jeff

Heres some details of my setup up

Eninge : Super Tigre G2300
Pitts style Muffler.
16x10 prop
Futaba 14mz radio and 7channel pcm receiver
single battery 6v 2300mah NMh
heavy duty switch harness
5 digital metal gear servo all 12kgs = 1 rudder, two elevators, two aileron. Throttle servo a standard futaba analogue.

Any questions I will be happy to try and answer

Congrats on the maiden Jeff!

Mine got maidened last week with 2 short flights but hoping to get it in the air again tomorrow.

Thanks for the tip on the flight without the cowl! I hope it doesnt stress anything, but then again I wont be belting it around the field.

Its just to tune the engine a bit then throw the cowl on till its time to lean it out after break-in. Thats the plan anyway

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RE: Peakmodel Extra 260 25% - 10/7/2007 4:51 AM

mtbrc

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I just finished building mine. Took me over a week at about 10 hours a day, OK I'm fussy.
It's weight is 9lbs 7oz. I made every effort to keep it lite except I used two 2500 mi amp batteries because I usually fly quite a few times when I go. I'm looking forward to trying it out.

Peter

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RE: Peakmodel Extra 260 25% - 10/7/2007 7:32 AM

RoysterDW

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quote:

ORIGINAL: mtbrc

I just finished building mine. Took me over a week at about 10 hours a day, OK I'm fussy.
It's weight is 9lbs 7oz. I made every effort to keep it lite except I used two 2500 mi amp batteries because I usually fly quite a few times when I go. I'm looking forward to trying it out.

Peter

What engine did you get?

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RE: Peakmodel Extra 260 25% - 10/8/2007 6:17 AM

mtbrc

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I got the SPE 26. I ran it today. It runs a long time on a tank of fuel over 20 Minutes but not easy to start.

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RE: Peakmodel Extra 260 25% - 10/8/2007 6:33 AM

RoysterDW

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Mine wasnt easy either at first. Make sure the prop is at 1 o'clock if you are flipping it or even better, buy a Sullivan Dynatron starter!

Just keep an eye on the CDI as they are crappy. I got a Melody one with mine and after 10 flights its stuffed!

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RE: Peakmodel Extra 260 25% - 10/10/2007 7:34 PM

aandreas

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hi everyone i orderd the same plane from europe and im i litle confused about what engine to use .i wan to use a spe 26 or the peak 26 but i read many articles they say that the spe is junk and unreliable . i dont want to use a motor that it ll die on me wile doing 3d staff. is the peak 26 beter than the spe 26 ,i mean more reliable ? is it all just bad rumores. ?

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RE: Peakmodel Extra 260 25% - 10/11/2007 3:37 AM

XJet

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All of these little 26cc engines seem to be lacking in power and rather fussy to get running right.

I've been thinking of getting one of these planes but I wouldn't consider using a small gas motor -- I'd throw a Saito 180 or maybe even an ASP180 in it.

With a 4-stroke you get the *perfect* motor for 3D flying and you know that both the Saito and ASP/Magnum/Sanye engines are reliable right out of the box. They'll also put out more power than those puny 26cc engines.

The other alternative (if you can't afford a big 4-stroke) is a nice 2-stroke like the OS160.

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RE: Peakmodel Extra 260 25% - 10/11/2007 4:51 AM

RoysterDW

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Seems to me alot of people dont know gas engines. I had a issue with my SPE40 that turned out to be just a flooded engine and gummed up plug, but most of the guys at the field whom I thought were experts didnt even catch on to what the problem was. It needed a mechanic who knew internal combustion engines, and most aero modellers arent mechanics (some think they are)

What I am saying is these things (gas engines) are simple 2 stroke bangers, they are more simple in thier workings than a 4 stroke, but I think you still need to learn about them from people who know. Any bad reports are from frustration of not being able to work it out. I'm lucky as my nephew is a diagnostics mechanic who works on BMWs and Mercs and has built his own turbine jet engine and he tunes up my motor in no time. As for me, yep I'd be on here saying they are crappy engines cause I know nothing about engines.
IMO.

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RE: Peakmodel Extra 260 25% - 10/11/2007 7:35 AM

georgee

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Hi,

I also ordered my Extra.I"m gonna useing a brand new Airworld Moki 180 gasser in my 260.Awsome power,reliable and running on cheap fuel.

Georgee

< Message edited by georgee -- 10/11/2007 6:36 PM >

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RE: Peakmodel Extra 260 25% - 10/11/2007 8:16 AM

gpar

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I agree with RoysterDW, you can´t go from glow to gas without a learning procces. I went thru many problems with my spe 26. Now with more than 200 flights I´m very confident with it.
I´m using a bigger bore carburator and getting 600 more rpm. I advice you to check the screen in the carb from time to time.

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< Message edited by gpar -- 10/11/2007 8:19 AM >

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RE: Peakmodel Extra 260 25% - 10/11/2007 8:31 AM

RoysterDW

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Nice pics gpar!

Did you go the WT540 carb?

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RE: Peakmodel Extra 260 25% - 10/11/2007 8:57 AM

XJet

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quote:

ORIGINAL: gpar

I agree with RoysterDW, you can´t go from glow to gas without a learning procces. I went thru many problems with my spe 26. Now with more than 200 flights I´m very confident with it.
I´m using a bigger bore carburator and getting 600 more rpm. I advice you to check the screen in the carb from time to time.

I've got two gas engines (45cc and 50cc) so I am familiar with them but have found the little ones (26cc) to be borderline in their effectiveness when compared to a good glow motor.

Price-wise the glow-motor and the gas are pretty close too.

Unfortunately many of the 26cc engines did come originally (and some still do) with rather substandard CDI units that makes them difficult to tune and unreliable.

The fact that you have had to buy a new (larger) carby to get the performance you really wanted means the total price of your engine is probably now probably well in excess of US$300. You could have bought an ASP180 for that (more power, nicer sound, better throttle response, much nicer for 3D flying) or even an OS160. Both of these engines would still outpull your modified SPE straight out of the box.

However, if you're happy with the SPE that's great -- I know that the one I see at our club is somewhat less than impressive and certainly won't come close to providing 3D power for the Peak Model Edge 540 it was combo'd with.

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RE: Peakmodel Extra 260 25% - 10/11/2007 10:21 AM

RoysterDW

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This all sounds familiar

I get into smilar discusions between glow guys and electric guys. (I fly all 3, Glow, Gas and Electric)

As for the expense and not speaking for any other country, glow fuel is getting more expensive hence the trend for gas engines at our club. Putting another carb on is cheaper than one may think. I bought a Walbro WT-540 from eBay for $4.99!!! Try buying an OS carb and then compare. But yes glow will give a greater power to weight ratio to a certain point.

Anyway its all good, gas, glow or LiPo power. If its got wings I'll fly it

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RE: Peakmodel Extra 260 25% - 10/11/2007 3:20 PM

aandreas

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Thats the problem with big glow motors,the fuel is expensive and geting more and more so gas is the cheap way but i m new to gas and im a litle affraid . i know a 160fx will be good power for the extra but i dont want to by a glow if i can use a gas reliably. im no alien to motors sinse i m a motor enginier but there is no way to know when and if the ignision will die .do you think an MVVS 160 gas is a beter option? is states that it can swing a 18x8 to almost 8200rpm with tuned pipe.the bad news is the prise of this combo 360 euro or 511$ i think that the peak 26 worth a try and hopefuly i ll not crash becouse off it but becowse i made a pilot error

< Message edited by aandreas -- 10/11/2007 6:47 PM >

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RE: Peakmodel Extra 260 25% - 10/11/2007 10:46 PM

RoysterDW

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Yasoo aandreas!

I believe the future is electric, but the cost of LiPo's for a 40 to 120 size aircraft is not cost effective. We have a guy at the club who has 120 size Katana and I'll get in 6 flights to his 1 or 2 flights. Once the Lipo paks are down to a very cheap price I'll make the change, but will still keep my 28% DA50 Extra

Anyway back on track the PeakModel Extra which seems to come from a company in China called ARF is now selling on eBay very cheap. Last bid was won at $215.00 AUS. Think I'll bid on one for spares!

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RE: Peakmodel Extra 260 25% - 10/12/2007 3:11 AM

XJet

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quote:

ORIGINAL: aandreas
do you think an MVVS 160 gas is a beter option? is states that it can swing a 18x8 to almost 8200rpm with tuned pipe.

Tuned pipes are not good news for 3D, they tend to make the power delivery very peaky and this makes 3D very difficult because one of the key features you absolutely need is a nice linear throttle response. For example -- if you're trying to hover or harrier and the engine keeps coming on, then dropping off the pipe you'll be going up and down like a yo-yo -- or just crashing :-)

You want to know what RPMs that engine will turn a 17x6 or 18x6 prop *without* a pipe. For good 3D performance you want an engine that will spin an 18x6 prop to at least 8,000 RPMs or so *WITHOUT* a pipe.

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RE: Peakmodel Extra 260 25% - 10/12/2007 7:17 PM

aandreas

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hello RoysterDW and Xjet well as i know the MVVS will turn a 18x8 metzik up to 7300 with a simple canister i dont know how well it ill throtle up with this prop .the peak 26 is state to turn a 18x8 at 7000 so is not that much bad but the peak is much cheeper

and 200grams hevier. ill wait for the plane to come in about 4-5 days and then i ll chek what engine to put on thank you all

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RE: Peakmodel Extra 260 25% - 10/12/2007 8:30 PM

stew007

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I had the peak 26, it turned an 18/6W APC at 7700rpm, seemed to have lots of power and torque, but it would not run reliable, it would idle for about 3 seconds then die, i tried extensive tuning, I think the carb was probably at fault. I see there is now a new version of the Peak 26, it looks to have a different carb and prop hub, so it must have evolved, might be worth a try, currently I have an ASP/SC 180 FS in my extra, loads of power and torque!!!

Stew

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RE: Peakmodel Extra 260 25% - 10/12/2007 8:58 PM

XJet

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Yes Stew, the ASP180 is a real grunter -- a much better option for 3D on the Peak airframe than the SPE or the Peak 26.

No farting around with ignition systems, no having to deal with odd airflow turbulence inside the cowling -- just fit and fly.

As I've said before, a guy in our club has a Peak Edge 540 with an SPE 26 and the closest it comes to hovering is a gentle tailslide. It *is* underpowered for 3D but otherwise flies nicely (very light). I gather that the Peak 26 has little (if any) increase in power over the SPE.

Most of these cheap Chinese 26cc gas motors are not very good (IMHO).

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