Today's Message Index:
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1. 04:11 AM - Re: Propeller and RPM (Thom Riddle)
2. 07:52 AM - Re: Propeller and RPM (dons701)
3. 12:29 PM - Re: Propeller and RPM (Thom Riddle)
4. 03:14 PM - Re: Propeller and RPM (Chuck Deiterich)
Message 1
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| Subject: | Re: Propeller and RPM |
.... Static max RPM with a Tennessee Propeller 64x34 is 2820 RPM and EGT's
1200F +/- 20F. In flight with the Tennessee prop, climb was 500 fpm or about
half that with the Prince prop. Cruise about 4 mph faster or 74 mph at 2850
RPM. .....*
*
*Chuck,*
*I'm in the midst of looking for a better prop too and am considering going
to a ground adjustable but before I do I'm sending my Tennessee 64x34 prop
back to TPI,Inc. for them to see if they can improve my WOT rpm. For
comparison purposes here are my numbers on my Kolb Slingshot with Jabiru
2200A #1574 no tuning kit with about 240 hours.*
*
*
*Static RPM 2832*
*WOT at Vy of 65 mph 2924*
*Vh (WOT straight and level) 92 mph TAS 3072 RPM*
*Preferred Cruise 80 mph TAS at 2640 RPM*
*
*
*Thom in Buffalo*
Message 2
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| Subject: | Re: Propeller and RPM |
Very good, interesting information. I am using a Sensenich prop on my 701 w/2200A
#2456 with a maximum RPM of 2970 in both climb and wot cruise. The prop specifications,
according to a representative from Sensenich, was originally requested
by Pete at Jabiru USA. The prop number is W-64-"PJ"-36. A recent conversation
with Pete about this prop confirmed the RPM's above. I recently purchased
this completed plane and I am working through cooling issues. To mount the
oil cooler where I wanted it required the removal of the muffler and I will add
a 4 into 1 header to the existing primary pipes and will jet the Bing accordingly.
Chuck, is'nt the P-tip designed to flex for climb and cruise ?
Don
--------
Zenith 701 #76120
Jabiru 2200A #2456 55 hours
Sensenich Wood 64-PJ-36 Prop
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=264528#264528
Message 3
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| Subject: | Re: Propeller and RPM |
I forgot to mention that I used to own a 701 with 582 which had a 2-blade 64" IVO
prop. I generally cruised at 72 mph at 5800 rpm (6500 redline) but it was thirsty
at 6 gph at that speed, which was about 85-90% power.
--------
Thom Riddle
Buffalo, NY
Kolb Slingshot SS-021
Jabiru 2200A #1574
Tennessee Prop 64x34
A complex system that works is invariably found to have evolved from a simple system
that works.
- John Gaule
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=264596#264596
Message 4
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| Subject: | RE: Propeller and RPM |
Below is a quote from Zenith about the CH701 and the Jabiru 2200. It is
why I asked about my 701/Jabiru performance.
"With the Jabiru 2200 engine installed, the STOL CH 701 boasts excellent
S.T.O.L. performance while being very economical to own and operate.
Take-off roll is less than 100 feet and rate of climb is an impressive
800 fpm. Cruise performance is 80 mph, and stall speed is 30 mph. The
design can also be built from component kits or scratch-built from
available drawings (blueprints) and manuals."
Chuck D.
N701TX
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