Petra vs Spectre

JYRO Petra · Performance Designs Spectre · Canopy explorer

Manufacturer facts side by side, with the source on every row. Nothing on this page says which canopy to choose or what wing loading to fly — that is a conversation for you, your canopy coach and your drop zone.

What differs — read from the data

Petra is made by JYRO; Spectre is made by Performance Designs.
Planform: Petra is listed as elliptical; Spectre as semi-elliptical.
Both have 7 cells.
Petra is cross-braced; Spectre is not.
Petra is listed in 55–89 sq ft; Spectre in 97–230 sq ft.
The listed size ranges do not overlap.
The manufacturers publish different systems: Performance Designs lists a maximum exit weight per skill category and size; JYRO lists a recommended wing-loading range and a chart with jump-number bands. They are shown side by side, never translated into each other.

Structural facts only (manufacturer, planform, cells, bracing, sizes, chart system). How each wing flies is described below in the manufacturer's own words; how it flies for you is a question for a canopy coach.

Side by side

	Petra	Spectre
Manufacturer	JYRO	Performance Designs
Status	current	current
Cells	7	7
Planform	elliptical	semi-elliptical
Cross-braced	yes	no
Aspect ratio	not published	2.14
Sizes (sq ft)	55–89 · custom sizes available Source: JYRO — Petra product page (page modified 2026-09-15) ↗	97–230 Source: Performance Designs — Spectre product page ↗
Designed for (manufacturer wording)	Experienced competitive canopy pilots with thousands of jumps on small, highly loaded crossbraced canopies (competition-specific) Source: JYRO — Petra product page (page modified 2026-09-15) ↗	Novice to Experienced skydivers Individuals looking for a canopy with nice, long, and smoothopenings Wingsuiting Camera flyers Demonstration jumps Source: Performance Designs — Spectre product page ↗
Characteristics (manufacturer keywords)	Firm but not hard openings · Highly sensitive toggles and harness · Very long, steep dive · Long recovery requiring pilot input for level flight · High-speed stalls possible with abrupt inputs Source: JYRO — Petra product page (page modified 2026-09-15) ↗	Soft openings with long snivel · Short recovery arc · Flat glide Source: Performance Designs — Spectre product page ↗
Opening	Firm but not hard; brisk when terminal (JYRO).	All sizes of the Spectre have a relatively long snivel and slow inflation speed. More resistant to off-heading openings than many other canopies, and tends to turn less and recover more quickly if it does open off-heading.
Recovery arc	Long recovery — requires pilot input for level flight (JYRO).	Short recovery arc (product page). FC: loses more altitude in a turn than some other canopies; will dive longer and lose more altitude in a turn than the Stiletto.
Glide	High maximal glide ratio (JYRO).	At full glide the Spectre actually has a slightly flatter glide angle than some nine-cell canopies, including both the original Sabre and the Sabre2.
Speed / dive	Very long, steep dive; 'the most high performance wing you can buy' (JYRO) — no airspeed figures published.	Flies at about the same airspeed as the original Sabre, the Sabre2, and the Stiletto (qualitative; no figures published).
Flare	Very powerful and responsive (JYRO).	Tends to have a lower flare point or "sweet spot"; you will need to pull the toggles a bit farther to stop your descent.
Front risers	Very light (JYRO).	Relatively light front riser pressure; even larger sizes respond fairly well to front riser input.
Rear risers	Range, range and more range; very responsive (JYRO).	not published
Harness response	Highly sensitive (JYRO).	not published
Toggle response	Highly sensitive; high-speed stalls possible with abrupt inputs (JYRO).	Turns more quickly and smoothly than a rectangular canopy, with less toggle pressure; product page: smooth, progressive toggle response. Very responsive in braked flight.
Loading system	Recommended wing-loading range 2.5–3.0+ lb/ft² plus a chart with jump-number bands (below).	Maximum exit weight per PD skill category and size (chart below).
Manufacturer-stated experience requirements	700+ jumps at WL 2.2 or above 250+ jumps in the last 12 months Reference from a respected coach/swooper or Petra/Peregrine pilot Competed at least once in the last 12 months (or 3+ Open competitions in the last 3 years)	none stated
Evidence level	B — Manufacturer product information	A — Manufacturer technical documentation

Flight wording is quoted or closely paraphrased from each manufacturer's own documents; where a manufacturer publishes nothing for a row it says "not published". No airspeed figures are published by either manufacturer.

Your wing loading on each size

Exit weight (you + all gear): kg

Enter an exit weight to see exit weight ÷ size for every listed size of both canopies and where each number sits on the manufacturer's own chart.

Wing loading = exit weight (lb) ÷ size (ft²). PD's chart lists the MAXIMUM exit weight per skill category — the category shown is the lowest one whose maximum covers your weight, by PD's own rule. JYRO's range is a manufacturer envelope, not a target. The two systems are never translated into each other.

The manufacturers' charts

Petra — JYRO wing-loading chart

Recommended wing-loading range: 2.5–3.0+ lb/ft² Source: JYRO — Petra product page (page modified 2026-09-15) ↗

22 chart cells (exit weight × size → wing loading), colour bands = minimum jump numbers: 2000+ jumps · 2200+ jumps · 1800+ jumps · 1600+ jumps · 2600+ jumps · 2400+ jumps · 2800+ jumps

Source: JYRO — Petra wing-loading chart (image) (WL_Chart_V4) ↗

Spectre — Performance Designs chart: maximum exit weight (lb) per category

Size	Student	Novice	Intermediate	Advanced	Expert	Maximum (never exceed)
97	N/S	N/S	N/S	97	126	155
107	N/S	N/S	N/S	107	139	171
120	N/S	102	114	120	156	192
135	N/S	114	128	135	175	216
150	N/S	135	150	165	195	240
170	N/S	153	170	187	221	255
190	N/S	171	190	209	228	266
210	N/S	189	210	231	252	273
230	N/S	218	230	253	276	299

N/S = not suggested by the manufacturer for that category. Weights are maximums, not recommendations.

Source: Performance Designs — Spectre sizing / wing-loading chart (PD website Spectre Wing Loading Chart, TABLE-0175 REV.0) ↗

Sources

B JYRO — Petra product page (page modified 2026-09-15) — open ↗
B JYRO — Petra wing-loading chart (image) (WL_Chart_V4) — open ↗
B Performance Designs — Spectre product page — open ↗
A Performance Designs — Spectre Flight Characteristics (FC-0012 Rev. 0) — open ↗
B Performance Designs — Spectre sizing / wing-loading chart (PD website Spectre Wing Loading Chart, TABLE-0175 REV.0) — open ↗

Evidence levels: A = manufacturer technical documentation, B = manufacturer product information. Knowledge base version canopy-kb-2026.09.23-r3. All sources used on this site

See it in your own data

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Safety notice: This tool is for data review only. It does not replace canopy coaching, DZ rules, traffic awareness, S&TA guidance, or manufacturer guidance. Everything here is information for learning — not advice or a recommendation about any canopy, wing loading, turn or decision. Your decisions are your own. See the Terms of Service.