The New Standard D-25 was a 5-seat agricultural and joy-riding aircraft produced in the US from 1928.

The D-25 was constructed primarily from Duralumin and wood. Duralumin stringers were used for the fuselage, with duralumin sheets riveted onto them. Unlike the fuselage, the wings were mostly of wood, with a main spar made of spruce, basswood for the stringers, and plywood for reinforcement, along with fabric coverings for the wing area and control surfaces. The D series was quite distinctive in having sesquiplane wings with the upper wing, of much bigger span and chord, supported on tall cabane and interplane struts.

Seating for four passengers was provided in the open front cockpit, described as "chummy", with the pilot in the single seat open rear cockpit. Variations in seating arrangement reflected the role of the different variants. The rugged structure gave the New Standard Ds a long-life, leading to the respectable number that survived the abuse of joy-riding, mail carrying and crop dusting for many years.

The model

Another fan request! This was a pleasure to design and build! I recommend glue for this one as well but may not entirely need it.

As with the others, take a moment to prebend all of the control surfaces. SInce the initial bend requires more force, it's easier to do as separate pieces as opposed to once they're installed on the model.

Pay close attention to the orientation of the outboard N struts. When you insert the lower wing into the fuselage slot, ensure that the holes for the N-struts are closer to the leading edge. My recommendation for the upper wing is to glue the fuselage-to-wing struts first. Then install the lower wing. Then install the outboard N-struts. Once those are glued and secured, then install the upper wing, being careful to slide the outboard N struts in at an angle.

Once those are done, install the main landing gear struts. Install the forward, longer struts with the wheel pegs first. Then the diagonal bracing strut later. The forward strut should nest into the diagonal brace where they meet at the wheel. May take some maneuvering.

Next, I recommend installing the engine and propeller, followed lastly by the horizontal stabilizer. The half For the half that has the notch cut out in the middle, I recommend installing that first, leading with the trailing edge, then sliding the forward tab into place in the fuselage. That should create a nice tight fit. Then place the other side into the slot. Adjust as necessary for a nice square fit. Then secure with glue.

Once you're all done, give a good blow on the propeller to give it a spin. :-)

I hope this works out well for you! Please leave me a comment if you have suggestions, come across problems, etc. I'm a noob at this and would love some feedback.