Real world RPM

[DesertHucker]

	Quote: Originally Posted by Dan767
	DesertHucker: 14MZ!

Who you fly for? what rout? 3G reciever! I'm never getting on that airline

[Dan767]

No worries mate, it's just two pilots and a lot of boxes, and I usually don't fly the Honolulu-Sydney route!

[3d-aholic]

Brillelli B60, 366., 40:1 Pennzoil Air Cooled. 104 degrees F. Unknown humidity. Unknown Pressure. 2.5 Gallons, Sealevel +Austin TX, Stock Muffler/Exhaust.

7020 RPM. Xoar 23x8

[jharkin]

DA-50R, slimline pitts
87 octane 32:1 Penzoil
close to sea level, temps ~70-80

NX 22x8:
When new, just leaned in low end enough to transition ok
7150 peak
1950 ide

After 2 gallons, high needle untouched, low end tuned just right
7300 peak
1500-1550 idle

[rcign]

"Frankenmotor" Old 3W 85 twin made from used parts, Falkon ignition...
3W 26-10 prop, big can mufflers from a larger 3W, 6230 rpm....
The price was right

[sprice50]

	Quote: Originally Posted by rcign
	"Frankenmotor" Old 3W 85 twin made from used parts, Falkon ignition... 3W 26-10 prop, big can mufflers from a larger 3W, 6230 rpm.... The price was right

Sounds like pretty good performance for an older setup. Nice!

[BrunoMacedo]

Guys,

what are the typical or expected RPM of a DA 150 running on MTW 110 canisters and mejslick 32x10 ?

Thanks,

Bruno

[helivflyer]

DA-150 MTW cans, alltitude 4200', air temperature 67, Amsoil Saber 100:1, 91 octane Chevron fuel,Mezlik 30x12 6240 rpm on staight level flight with a engine temperature of 234, dropping to 6100 rpm on a vertical upline and with the engine temperature at 245. Diagnosed with a Pauly's R/C Products Temp-Tach.

[juanes1969]

3w-85xi, after 3 gallons spins a mejzlik 26x10 at 6800 rpms. Original muffler, 91 octane mixed at 40:1 with pennzoil. Unknown hummidity and unknown pressure. Temps at 90ºF.
Still vibrates a lot, but has incredible power.

[Stu_D]

Ok guys its new engine & plane time for me so here are the vitals for those who want to know .

Plane :- comp arf 3.0 yak

Engine :- 3W 170 classic NIB
Pipes :- 3W L90 ( the long ones )
Headers :- K & S stainless steel @ 275mm long

Run in test @ four hours on bench
Oil :- 33:1 castrol T2
Run in prop :-30 x 12 mej
RPM hot @ end of 4 hours :- 5300

1 st session -
Oil :-3W @ 50:1 , RPM 5300 with Mej 29 x 12 3 blade

2 nd session , RPM 5500 with Mej 32 x 10 2 blade

3 rd session , all same

4 th session , RPM 5950 with PT 32 x 10 2 blade

5th session , No tach start to rip Mej 32 x 10 2 blade , 7 hours total run @ this point

Up date on figures after 11 hours of air time and standard 3W headers (long drop)

Mej 29 x 12, 3 blade - 5850

PT 32 x 12 , 2 blade - 5850

Mej 32 x 10 , 2 blade - 6000

[pe reivers]

	Quote: Originally Posted by notorious_benny
	DA 100 on standard pipes with Menz 28-10 = 6100rpm. 95 octane, 50:1 castrol TTS. 35 degrees celsius, as good as at sea level. Question..... does a Mejlik spin faster or slower than a Menz on the same motor?? Anyone done back to back between the two prop brands???

Mejzlik spins faster, compared to Menz-S prop shapes.
Most wooden props impose a heavier load on the engine than carbon due to the design limitations in wood, which would make them too fragile.

[ultimate65]

Hi; Does any one have any RPM data on 3W 212 4 cylinder red heads ?

Thanks