Re: [stuntjumper] Small Jumper
In reply to:
I'm not familiar with base canopies, can you use skydiving canopies to base jump with?
It has been done, but it's not recommended. Historically (generally before BASE specific canopies were manufactured), people used large 7 cell F-111 skydiving canopies (Raven, Cruiselite, etc) for BASE. With the advent of modern BASE canopies, there is no real reason to do this, although some people are still using that gear, usually in the interests of saving money (because an old used skydiving canopy is cheaper than a modern BASE canopy).
In reply to:
Like CRW canopies or is base canopies more specific and separate, for opening purposes?
All skydiving canopies are designed for slider up openings only. Slider down openings are not a designed (or tested) aspect of any skydiving canopy.
In general, CRW canopies have fairly good openings, but they have poor landing characteristics (since on a skydive you will usually find a much better landing area than on a BASE jump).
In reply to:
Are any base canopies made of zp, sail or kite material? Or is it only F1-11?
Most BASE canopies are all F-111. Some of them are made with partial ZP (usually either on the topskin or the front third of the topskin). There are some other canopy materials in use (low bulk material in the Trango, for example), and there have also been a few experimental all ZP BASE canopies. In general, the concern with an all ZP canopy is the openings, although packing would also be much more difficult (meaning that the opening heading would likely be worse).
In reply to:
Has there been drop test to see how sail or kite open?
Yes, but not many. There are two major problem areas.
First, most kites are not reinforced for slider down openings. This could lead to a catastrophic failure, which is unacceptable in the BASE environment (one parachute at low altitude).
Second the (much) higher performance wings do not have the on-heading performance of BASE canopies, as a result of their higher performance design (and materials). Off heading opening is a major danger in BASE, and any design that can reduce it is eagerly sought after. Likewise, designs that would increase off headings are generally not received well.
In reply to:
What about kite pilot chutes?
Why would you want one of those? Pilot chutes are designed for fast, consistent opening, stability and compact size when stowed. Kites meet none of these critical design criteria.
In reply to:
Does anyone here use a belly mount round paragliding reserve?
No. It has been done (as have various other reserve systems) but the low opening altitude of most BASE jumps makes using a reserve a practical impossibility due to time/altitude constraints.
It sounds like you are trying to re-invent an activity (BASE) that you have not yet participated in. While I applaud your creativity, I'd suggest you follow a more conservative approach, by becoming proficient in the standard techniques now used
before trying to pioneer new ones.
There are many experienced BASE jumpers in your area. I urge you to contact them for guidance before attempting any BASE jump.