Plane type

[Peter Pennisi]

I concur with Matt. I am happy with mine as well. I flew mine with the L and
it was fine but it needs more power to fly the F schedule well. Mine is
powered by a YS Dingo. CG is about 10mm back from recommended. That makes it
about 280mm from trailing edge. The model is awesome as far as locking onto
lines eg 45 degree uplines as well as verticals and downlines work really
well. Mine has 10 % mix on left and right rudder.

 

 

Peter

 

  _____  

From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of Rcmaster199 at aol.com
Sent: Sunday, 30 May 2004 11:39 AM
To: discussion at nsrca.org
Subject: Re: Plane type

 

I flew the Alliance for two seasons in Masters and found it to be an
exceptional perfrormer . I had the wing incidence set at 1/4 degree
positive, with stab at zero and engine as per the built in nose off sets. 

Webra 145 powered mine with a 16x14initially, and I set the pipe long,
(conservative) . Eventually went to more typical set-up on pipe setting and
the plane  improved in power authority. 

It sounds like you may be underpropping the L some. The L has enough beans
to turn a 16x13N just fine. 

I set the cg at the recommended location and found that to be too nose heavy
for me. I eventually pushed the cg back approximately 15 mm from stock, and
everything improved. 

About the only negative on this design was the amount of "UP" mix required
to fly a true knife edge-- about +8% both sides, and could have probably
used +10%. The aft cg location I was using was a good compromise between
overall flyability and the amount of UP mix to fly knife edge.

In terms of ability to lock in any attitude, it was one of the best I have
flown. It's ability to hit angles with precision, and fly true up and down
lines was outstanding. I am surprised that you are finding the plane tough
to fly with precision. Have you gone back and re-checked all of your
settings? 

Hope that helps you. Good luck

Matt K




Date:5/29/2004 8:55:07 PM Eastern Daylight Time
From:xavier.mouraux at sympatico.ca
Reply-to:discussion at nsrca.org
To:discussion at nsrca.org
Sent from the Internet 



I am trying to decide which of my plane will be my primary this year. I have
an Alliance/140L/15x12W/25% and a Hydeout/160FX/17x13/15%. Both are just
under 10 lbs. 
After practicing a few weeks with the Hydeout to start the season, I took
the Alliance out also to see which one feels better for me. I have now 30
flights with each one this year and I am still struggling with the Alliance.
I can't get nice straight lines (horizontal or vertical), the rolls on 45
are not straight and the snaps aren't nice. When I fly the Hydeout,
everything is a lot better. 
The CG of the Alliance is already moved aft of the instructions but I still
need a lot of elevator for inverted flight. I tried more aft but it didn't
fix it and I am now thinking about moving even more aft. The plane is very
stable at low speed and the rudder as a lot of authority. It easily loop in
knife edge. The elevator and ailerons also work very well. I tried a
15.5x13N and a 16x10 without improvement except for better vertical with the
16x10.
The Hydeout is more powerful and easily makes big maneuvers. The roll rate
going up or down looks very similar so I am assuming that the speeds are
similar too. The rolls on 45 are better.
I fly the P05 in approximately the same time (around 8 min) with both
airplanes but with some maneuvers bigger with the Hydeout.
Could it be that I fly the Alliance too slow ?
Should I move the CG more aft and how far back could I move without trouble
?
Any other ideas to help me taking the better decision ?

Thanks

Xavier



 

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