The Y flyer is a 18.17ft fractional sloop designed by Alvin Youngquist and built in wood or fiberglass by Helms - Jack A. Helms Co. since 1941.
2770 units have been built.
The Y flyer is an ultralight sailboat which is a very high performer. It is reasonably stable / stiff and has a low righting capability if capsized. It is best suited as a racing boat.
Main features
| Model | Y flyer | ||
| Length | 18.17 ft | ||
| Beam | 5.67 ft | ||
| Draft | 0.50 ft | ||
| Country | United states (North America) | ||
| Estimated price | $ 0 | ?? | 
Ratios
| Sail area / displ. | 40.95 | ||
| Ballast / displ. | 0 % | ||
| Displ. / length | 73.22 | ||
| Comfort ratio | 4.90 | ||
| Capsize | 2.86 | 
Hull
| Hull type | Centerboard Dinghy | ||
| Construction | Wood or fiberglass | ||
| Waterline length | 14.50 ft | ||
| Maximum draft | 4 ft | ||
| Displacement | 500 lbs | ||
| Ballast | 0 lbs | ||
| Hull speed | 5.10 knots | 
Rigging
| Rigging | Fractional Sloop | ||
| Sail area (100%) | 161 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 0 sq.ft | ?? | |
| Sail area main | 0 sq.ft | ?? | |
| I | 0 ft | ?? | |
| J | 0 ft | ?? | |
| P | 0 ft | ?? | |
| E | 0 ft | ?? | 
Engine
| Nb engines | 1 | ||
| Total power | 0 HP | ||
| Fuel capacity | 0 gals | 
Accommodations
| Water capacity | 0 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 | 
Builder data
| Builder | Helms - Jack A. Helms Co. | ||
| Designer | Alvin Youngquist | ||
| First built | 1941 | ||
| Last built | 0 | ?? | |
| Number built | 2770 | 
 
                         
                                                     
                                     
                                         
                                         
                                         
                                         
                                         
                                        