Stiletto (oz14273)

About this Plan

Stiletto. Radio control scale model racer. For electric power. Wingspan 1100 mm.

Quote: "Hi Mary, Following Kingcobra (oz14197) here is the sleekest Mustang of them all: Stiletto. Find enclosed the dwg as usual and the article published in Modellismo."

Note the 'original' drawing here is the CAD zip download (in dwg format). That's the file that Giuseppe sent us, and that is his design, his work. The PDF file you see here is really just a taster, a PDF file in this slot for Oz users who don't have a CAD viewer.

Direct submission to Outerzone.

Quote (google-translated from the Italian): "P-51 Mustang Stiletto. Semi-reproduction for electric motors power 600-700 Watt - Kv 1000-1100 Table 1 Persichello March 2019 Fp: Roof and drawing by G.Ghisleri.

Champion in the Unlimited category in 1984, the Stiletto is a Reno racer derived from the P-51 Mustang, but deeply modified and with a long and articulated history. Seppe Ghisleri redesigned it in a semi-scale version obtaining a beautiful model with exceptional flight performance, now available in our archive.

The construction of the KingCobra satisfied me so much that, already with the model still to be completed, I started drawing this Mustang which has the same basic idea: a model entirely in balsa, almost in scale, not completely simple to build, but not too simple either. demanding, without trolley, light, with electric propulsion. Then tried the KingCobra, its flight characteristics, easy, precise, fast and fun, convinced me to start building the Stiletto immediately, leaving aside the Little Dipper.

The flight of the Mustang is in all respects similar to that of the KingCobra and therefore - I'm already drawing another racer which will probably be followed by two more, after which the whole series of the most beautiful Warbirds should be complete. The motor mounted on the KingCobra died prematurely, so I had to get another one with very similar characteristics, it is a 1250 Kv SunnySky X2814 which with APC E 10x7 propeller has these data on the ground: absorption 49 A, power 500 W, number of revolutions 10,500 per minute, all with a 3s x 4200 mAh pack that easily allows 5 minutes of flight 'at the ball'.

On the Stiletto I mounted a Hacker A30 10XL that I had used on 21 circular tethered acro models, slightly reducing the power output. With the same propeller, but with the 4s pack still of 4200 mAh (the Hacker is of 740 Kv) the absorption is of 41 A, the power supplied of 640 W and the revolutions 11.100.

The final weight of the Stiletto is 1900 grams, 100 more than the KingCobra. The front lever arm is slightly shorter, while the rear one is longer so, having the two motors about the same weight, to have the CG in the desired position without having to add ballast, it was necessary to bring the battery pack as much forward as possible.

The only difference compared to a perfect scale, at least as far as the triptych available allowed me, is a streamlining in height and width, but not much, of the fuselage. Wing, rudders and lever arms are to scale and I have even adopted a couple of degrees of negative to the engine in order to have an appearance as similar as possible to that of the original aircraft. Many Mustang reproductions lack precisely this point and the same can be said of the nose cone so difficult to find in the beautiful shape of the aircraft.

As far as the construction is concerned, I have little to add to what has already been said in the KingCobra article; on the other hand, the model requires a certain amount of experience and therefore it is useless to go into too many details.

The fuselage is built, as can be seen from the attached photos, around the front block made up of the first frames joined by the battery holder plate. The sides are added later by placing everything on a work surface with the center line drawn as a reference. The wing is covered with a single piece of previously prepared 2 mm balsa. No particular problems have emerged to force it to follow the variation of curvature..."

Supplementary file notes

Article.

CAD file

This plan is available for download in CAD format.

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