JackMatt
Member
- Joined
- Jan 17, 2013
- Messages
- 10
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Greetings - new to this Forum, but have been active in my local club / forum for about three years. Got my L2 a few months ago - but mostly have used PML and other kits. Newly retired and trying my hand at my first serious scratch-build. The design I have (and modeled in RockSim) is long (92"), with a 2.5" diameter air frame. I've already built the fin can, so the fin size/shape is fixed - the rest is still 'flexible' and am willing to modify, if necessary.
Question - other than severe wind cocking (I'd launch only on the calmest of days and with motors that provide a quick start off the pad), what are the other downsides of an overstable design (on the order of 8.5)? One reason for the length is that I wanted to get the tracking hardware as far away from the Av-bay (dual deploy) as possible,,, but I'm sure it's due in equal measure to my inexperience in design.
Bottom line - are the downsides significant enough for me to re-work the design,, or can I build this 'pencil' and only launch in suitable conditions with appropriate motors?
Jack Matthews
NAR 90834
TRA 13150
Question - other than severe wind cocking (I'd launch only on the calmest of days and with motors that provide a quick start off the pad), what are the other downsides of an overstable design (on the order of 8.5)? One reason for the length is that I wanted to get the tracking hardware as far away from the Av-bay (dual deploy) as possible,,, but I'm sure it's due in equal measure to my inexperience in design.
Bottom line - are the downsides significant enough for me to re-work the design,, or can I build this 'pencil' and only launch in suitable conditions with appropriate motors?
Jack Matthews
NAR 90834
TRA 13150