Hartzell Top Prop Mod

[jetdriven]

In the case of the Hartzell spinner, it was a huge spinner with no front bulkhead to anchor it to the prop hub.  So the rotational imbalance, no matter how small, causes the spinner backplate to crack.  I don't know what they were thinking by trying that.

[John Pleisse]

I traded e-mails with McCauley today and they confirmed previous misinformation regarding OEM only availibility of the C214 prop.  I thought I was going nuts. Please know I would never steer you guys wrong.

As for this:

jetdriven Won't Leave! Joined: Dec 18, 2010 Posts: 2,095 Location: league city tx usa

Re: Hartzell Top Prop Mod Posted Feb 23, 2012 1:25 PM Quote: N4352H One should also consider the current state of MAC/Factory and the fact that our props are OEM and not available directly from McCauley (if you have an early 201)...... Why do people start rumors that have no clue?

Donald-Wayne-Byron-Gunslingin'-Rogers must not be able to let go of this:

Quote: jetdriven

Supposedly mooney sold a lot of the high value tooling to raise cash, so they will never build airplanes again.    I heard that at the mapa homecoming.  

 We have not sold any machines, jigs, tooling, etc. Why do people start rumors that have no clue?

[flyby201]

Quote: allsmiles

[testwest]

We are very happy with our 2-blade Top Prop. The M20J spinner has not had cracking issues, only the shorter earlier M20* spinner.

We did get the advertised speed increase. We did the baseline and post-STC performance tests on the J for Hartzell to verify the gains shown on the E they used for the initial STC. 

There is very little some weight penalty, the AFM Supp documents an approximate 3 pound increase over the McCauley C21* over most of the type certificated two blade prop/spinner combos.

The deletion of the 1500-1950 yellow arc really simplifies approach power management.

I think the swept leading edge profile may lower tip drag a bit (sure can't hurt), the tip mach numbers are not insignificant, especially when at higher RPM and cold temps.

Again, this thing is not about "speed increase", it is about "same speed, less gas".

And it looks very snarky on the ramp.

[jetdriven]

Quote: N4352H

There is a clear difference between an honest error direct from the source re: how to purchase a prop (McCauley), versus heresay that affects a multimillion dollar company and 7,000 owner operators.

But then again, with Mr Roger's nearly 2100 Mooneyspace posts absolutely void of impulse control, usually rote regurgitation of first page Google hits, I'd expect nothing less.

[testwest]

You are reading the materials correctly. I just have to be more careful on my posts.

SO it looks like the weight difference is about 8 lb (54 for a C212, 62 for an F7497), from your link. We removed an ADF, inop autopilot and a KX-170B....maybe the weight delta is similar now.....hehehe.

I definitely like the "no yellow arc" aspect of the STC. We sold our old C212 for $1900 so the out of pocket was not too bad.

[mooneyman]

Going with the 2 blade Hartzell Top Prop kit for my 74'F.

Having install and dynamic balance done at Hartzell in Piqua, Ohio.

Will post a pirep! 

[aerobat95]

When are you planning to have your prop put on?  Also did they quote you a price?

-Ray

[mooneyman]

Quote: aerobat95

When are you planning to have your prop put on?  Also did they quote you a price?

-Ray

[jetdriven]

Rocky Mountain Propeller has the Hartzell top prop for 7500$.  Then Hartzell charges like 300$ to crate and ship it to you.

 

Maybe you could buy it through Rocky and take delivery of it in Ohio.

[mooneyman]

Quote: jetdriven

Rocky Mountain Propeller has the Hartzell top prop for 7500$.  Then Hartzell charges like 300$ to crate and ship it to you.

 

Maybe you could buy it through Rocky and take delivery of it in Ohio.