Polikarpov

 

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Polikarpov  
by Richard Crossley
from Aeromodeller
1995
13in span
Tags: Scale Rubber F/F LowWing Military Fighter
:) all formers complete

Submission date: 08/02/2019
A backup copy has been saved on Outerzone as:
PlanID: 10884 | Filesize: KB
Credit*: algy2, Pilgrim
Format:  •PDFbitmap

Plan file details

Polikarpov I-16. Peanut scale rubber model Russian fighter. Quote: "Polikarpov I-16. Richard Crossley chose a very unusual subject for Peanut Scale - but it flies remarkably well. This bizarre looking little fighter was actually quite a step forward when it first flew in 1933, being the first cantilever monoplane with a retractable undercarriage to enter service. The 1-16's ailerons were very light and the roll rate was rapid. However, it tended to stall out of a glide, no doubt due to the drag from the massive frontal area of its hp Shvetsov radial engine! The virtually non-existent nose and short coupled nature make it seem an unlikely choice for a rubber powered model but don't be put off, mine has a great performance, being capable of remaining airborne at low speed and low power, making it possible to use a long length of rubber motor. . Bear in mind that you must keep all of the structure behind the point of balance as light as possible. I did this and found that no extra nose weight was needed. Construction: This is a very easy model to build with all aspects of construction being relatively conventional. Anybody who has built a few rubber powered models before should have no problems. If you've not yet built any laminated tail surfaces don't worry, they are dead easy. Wings: Cut the ribs from lightweight 1/20 or 1/16 sheet balsa. The leading edge needs hard 3/32 square balsa and the 1/8 x 1/16 trailing edge and 1/16 tip pieces are from medium sheet. The top and bottom spars should be fairly firm. Build the wing directly over the plan. incorporating 3/4 dihedral under each tip. Don't forget the 1/16 sheet spar webbing between RI and R2. (Do not worry about washout at this stage). Fuselage: Cut out F4 - F9 from soft 1/32 sheet balsa and F3 from 1/16. Cut the keels from soft 1/32 sheet. Construct the fuselage in the traditional way, over the plan side view. Note that the two lowest stringers are added after the wing has been glued in position. Fl and the two F2s can be fairly firm sheet to give nose weight. All the stringers are 1/20 x 1/16 cut from 1/16 sheet balsa. Due to the consistent curve of the fuselage the stringers can be cut from..." Quote: "Took algy2's scan and stretched the parts to remove distortion, made the two wings equal in span. Looks about right now." Note raw scan posted by algy2 https://www.rcgroups.com/forums/showpost.php?p=21086668&postcount=294 Direct submission to Outerzone.

  


 

Polikarpov - plan thumbnail image