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1. 05:24 AM - Re: FireFly Weight and Balance (racerjerry)
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| Subject: | Re: FireFly Weight and Balance |
I cannot argue with John H's success in Kolb airplanes. I do argue that while
Homer's designs have proven themselves to be quite stable and forgiving, promoting
the idea that weight and balance calculations are not needed might be carried
over to other aircraft where the results could be deadly.
I make two sets of W&B calculations at worst conditions of both forward and aft
loading.
In Kolbs, it really helps to have someone else read the scales while pilot is seated
in the airplane :o)
I bought 4 (1 spare) new very flat bathroom scales for $10 each many moons ago
that worked perfectly for the job. You do need to take care not to side-load
the scales for accurate readings. Climbing into the pilot seat while aircraft
is on scales will spread the main wheels slightly and cause a scale side-loading
error. The cure for side loading is greased plates on top of one main wheel
scale. Un-greased plates on opposite side keeps things level. Cheap 12 x
12 floor tiles work fine for this purpose.
BTW, if you are flying a Cessna Cardinal (rearward wing) with constant speed prop;
two heavyweights in winter clothing up front with no other passengers or baggage,
you could get yourself in trouble. There is a reason why Cessna added
slots to the stabilator on early Cardinals and many pilots found out the hard
way during flare.
Jerry King
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Jerry King
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=491070#491070
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