Re: How big is the CH601HDS cockpit / First Flight N601XS


Subject:    Re: How big is the CH601HDS cockpit / First Flight N601XS
From:    Clive Richards (s.clive.richards@homecall.co.uk)
Date:    Thu Oct 09 - 1:12 PM
Congratulations Craig
                                      We have tried a 66 inch 3 Blade on 
Rays 601 HD 100 HP Cont 0200 set 13 degrees gives 2300 rpm max with chocks 
on ground I think you  should aim for around 2300 depending on air 
temperature and gives about 2700 max straight & level.  Caution we have had 
the aluminium ferrule on the blades crack Warp have replaced the blades but 
say we should Idle at a minimum of 1000 rpm to prevent this happening again, 
we think this will give to long a landing run so have not tried this & are 
staying with our wooded prop for present. We think Warp may have a problem 
with direct drives.

Clive Richards
do not archive 260 Hrs app 40 on warp.
----- Original Message ----- 
From: "LarryMcFarland" <larry@macsmachine.com>
To: <zenith-list@matronics.com>
Sent: Thursday, October 09, 2008 5:19 PM
Subject: Re: How big is the CH601HDS cockpit / First Flight 
N601XS


>
> Congratulations Craig!
> You're right, the HDS was a little tight, but my seat back could get 
> another 2 inches if it were only an inch thick.  Fits me as I'm short in 
> the legs, long in the waist.
> On prop pitch, examine your numbers carefully as I'd have considered going 
> longer in pitch would take you to 14 or 15 degrees.  There was an airplane 
> built a few years ago that crashed with the most likely symptoms of being 
> pitched too short. Could take off, but not stay in the air.  Very pleased 
> to see your aircraft complete.
>
> Larry McFarland 601HDS at www.macsmachine.com
>
> Craig Spainhower wrote:
>> Kevin,
>>     I am 6' 3" and got a ride in Larry McFarlan's 601HDS and I found it a 
>> little tight for leg room (It is an excellent plane by the way, Larry is 
>> very meticulous). I built the 601XL and moved the rudder peddles towards 
>> the firewall as far as the plans allowed and am quite comfortable.
>>     On another more exciting note, N601XS passed inspection last Sunday 
>> 10/4/08 and yesterday 10/8/08, with the Sun ready to sink below the 
>> horizon, it changed from an expensive hobby to an airplane. The winds 
>> were calm and climb out was uneventful, although the climb rate was less 
>> than expected. The reason became apparent on downwind when I could only 
>> achieve 85 kts @ ~ 1900 RPM. Since the 0-235 L2C makes full rated power 
>> of 118 HP @ 2800 RPM I definitely need to re-pitch the prop. I have a 
>> 3-blade 66" Warp Drive currently pitched @ 13 degrees, I would welcome 
>> input from anyone flying with a similar setup. I will re-pitch to 12 
>> degrees and try again. I have a slightly heavy right wing with 12 gallons 
>> of fuel in both wings. After an excellent landing, one which I could walk 
>> away from and able to use the plane again, I tucked the plane in and 
>> smiled all the way home. The only disconcerting thing I noticed, other 
>> than the prop pitch, is a tendancy for the plane to want to continue to 
>> roll in the direction of a turn after ~ 15 degrees of bank. It is easily 
>> arrested with a light opposite input on the aileron and I wondered if 
>> this is a normal trait of the XL.  Well, only 39.75 hrs flight testing 
>> left, hoping for a mild fall.
>>  Craig Spainhower
>> N601XS, 601xl  Lyc 0-235 L2C, Started Feb 2003, finished Oct. 2008
>>
>
>
> 




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