As the D18 has a classical undercarriage and many clubs like a nosegear for their planes, M. Delemontez came up with a variant of the D18 called the D19. Beside the nose wheel, the main difference to the D18 is the flap. The flap drawings contain information for putting a similar flap on the D18, and is a classical Jodel flap of narrow chord. It is not very effective as a high lift device, but a very useful brake on landing. The drag of the nosewheel does degrade the performance to some degree, but ground handling is made simpler.
The D 18 and D 19 are small two seater homebuilts that are usually powered by converted Volkswagen engines. Plans are being sold to homebuilders, but they were never factory produced.
Plans for both planes are available through S.A.B. Same firm also sell parts for the aircraft, like hinges, horns, undercarriage assemblies, perspex cockpit canopy, controls and engine mounts. These are definitely home builts and not kit planes.
The Ultralight rules call for a MTOW of 450kg, and that should fit the D18/19 MTOW of 460kg. Same regulations say an ultralight should be able to fly at 65km/h. This is hard to attain with a D18 or 19, but should be possible with a high-lift flap.
SAB also seems to have seen this as a new marketing niche. In late 1999 a brochure emerged telling about these recent Jodel developments.
The new variants are called D185 and D195, and differ from their D18 and D19 forerunners by having:
- an 8 cm wider, more comfortable fuselage.
- the hood extended towards the rear, opening by sliding the rear part rearwards.
- flap of increased area (which means increasing wing area as well) to lower the stall speed. The increase in area is simply done by stretching the trailing edge of the flap rearwards by 100mm, leaving the wing unchanged. The flap is also extended all the way to the root rib.
- hydraulic springs (oléopneumatique) in the undercarriage.
- gross weight reduced to 450kg.
The rearwards extended hood makes installing the 65l fuel-tank behind the seat the only option left.
The brochure lists the specs. of the planes to be very similar to their ancestors. A stall speed of only 60km/h sounds a little optimistic however - at least at gross weight. The engines that are used for the D18/D19 are also listed as suitable for the ultralight variants - VW1600 - 1800, Rotax 912, JPX, Limbach and Jabiru.
Wing span: 7.50 m
Length: 5,70 m
Wing area: 10 sq.m
Cabin width: 1,0 m
Fuel capacity: 65 lt
Engine: JPX 1,835 lt, 70 hp
Empty weight: 244 kg
Max weight: 460 kg
Climb (2p): 3-3,5 m/s