Lavochkin 17 oz598

 

Lavochkin 17 - plan thumbnail image

Lavochkin 17 - completed model photo

This plan was found online 20/04/2011 at: http://www.rcgroups.com/forums/showthread.php?t=1265873&page=75
Outerzone planID: oz598 | Filesize: 1193KB | Format: • PDFbitmap | Credit*: DereudreBernar, GTHunter

   

About this Plan

Lavochkin 17. Free flight scale Russian jet fighter. IMP System. Ducted impellor design - maybe the first ever ducted fan kit - by Veron.

Quote: "Lavochkin 17. Free flight scale power model for propulsion by the 'IMP System' of ducted impeller - patent applied for. This is a near scale model of the latest Russian escort fighter of 40ft 3in span and 37ft length, the stabilizer having been enlarged for stability. Designed for use with engines from .5cc up to .87cc such as the following: Elfin .5cc; Allbon Dart .5cc; Frog 50; Amco .57cc; Mills .75cc: all engines use the standard 3in diameter impeller with varying pitches to suit. All up weight is approximately 11-1/2oz maximum. Model is hand launched having no undercarriage. Double covering the underside with tissue will still suffice for all normal landings."

Quote: "This flying scale model of a Russian Jet Fighter heralds the introduction to Aeromodelling of a new and intriguing method of propulsion, the 'IMP SYSTEM,' being a diesel or glow-plug powered ducted impeller. This brilliant innovation devised and developed by Veron designer Phil Smith, enables you to make a faithful replica of a modern jet fighter and power it with your small motor without the propeller being visible, so preserving the characteristics of pure jet flight.

Designed for diesel and glow-plug motors from .5 cc up to .9 cc, the impeller included in the kit is made to suit all capacities of motor by variance of the blade pitch. Details are given on the plan for the installation of beam-mounted motors such as the ALLBON DART .5 cc, AMCO .87 c.c. and MILLS .75 cc. Details are also given for mounting an ELFIN .5 cc. The FROG 50 can also be adapted.

Owing to the high running speeds required, a well run-in engine must be fitted or one which has had AT LEAST HALF AN HOUR TEST RUNNING on the bench.

This kit, although essentially simple, is NOT recommended as a beginner's model. The model is designed as a rigid and torsionally strong sheet balsa tube, built as a hexagon for ease of construction and with a fuselage structure of formers and stringers. The fuselage is built in two halves, upper and lower parts separately over the plan to ensure a correct line-up, greatly simplifying construction.

Before commencing construction, out out all the parts on the printed balsa sheets and identify these on the plan. Study the plan carefully and familiarize yourself with these and all other instructions, together with the com-plete sequence of detailed assembly..."

Update 03/08/2018: added instructions, thanks to GTHunter.

Update 04/08/2018: Replaced this plan with a clearer copy, also added printwood scan supplement, thanks to GTHunter.

Direct submission to Outerzone.

Supplementary files

Instructions, inc photos, complete.
Printwood.
Previous scan version.

Corrections?

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oz598 datafile

Lavochkin 17  
by Phil Smith
from Veron
May 1954 
37in span
Tags: Scale IC F/F Military Fighter
all formers complete :)

 

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User comments

Although this was marketed and is still known as the 'La-17' , it's actually the La-15. The actual La-17 was the first Soviet UAV [unmanned aerial vehicle].
Daithi - 09/08/2018
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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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