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Rotec R3600 Powered Kitfox Sopwith Camel
Owner: Michel Cavin and Xavier Michel
Status: 75% Complete

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Rotec
Aerosport Pty Ltd
Victoria
Australia

 

Sopwith Camel Project By Michel Cavin, Xavier Michel and assisting engineer Mathias Farouz:

Michel CAVIN is a retired French Airforce mechanic. On return to civil life, being PART 66 certified he has become involved in the maintenance of French Classical Aviation Associations' (Aéroclub) aircraft.

Michel's experience extends to both piston and jet engines including the Pratt & Whitney radial R.985.AN.1 Wasp Junior which has no secrets for him, This radial engine experience makes him very comfortable in working on the Rotec R3600 installation for this project.

Michel has also been involved with many amateur aircraft projects with some of them flying in the Amicale Jean-Baptiste Salis Association.

Michel also owns a modified (by him) Gardan “Minicab" which is very fast and responsive though not for used in aerobatics.

Xavier MICHEL is an active business man and aviation enthusiast, Xavier flies different types of piston engine aircraft, including some twin engine powered as well as helicopters for which he is a qualified instructor. He is IFR qualified.

Xavier also races cars and not surprisingly sometimes uses Michel as his mechanic.

Mathias FAROUZ is a consultant for a major European and world aircraft manufacturer, specializing in costing for in both design and serial stages.


An aviation enthusiast he flys sailplanes, ultralights and many light aircraft including a CAP10 for aerobatics.

Mathias is also a student in aviation completing courses at ISAE High and ONERA Aerolabs in aerodynamics, aircraft performance, specific prop design, landing gear design, and stress calculations, As such he is well suited in providing detailed design support for Michel working on the Camel Trainer project..


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August 2013 - The WW1 Look:

SOPWITH CAMEL WW1 AUTHENTICITY ON DISPLAY
Rotec Powered (R3600 Radial Engine) Sopwith Camel WW1 look Rotec Powered (R3600 Radial Engine) Sopwith Camel WW1 look Rotec Powered (R3600 Radial Engine) Sopwith Camel WW1 look
Rotec Radial R3600 Powered Sopwith Camel Nears Completion ... WOW!

August 2013 Rotec R3600 1st Run: Mathias. Writes: We passed an important mile stone on the 13th of August, as the aircraft was pushed out of hangar and the engine once again fired for a very first run.

First Day of Testing - Including Rotec Engine 1st Engine (R3600 Radial) Starts. Great Results!
Rotec R3600 on Sopwith Camel rolls out for engine & plane test - Rotec r3600 1st Runs Rotec R3600 on Sopwith Camel rolls out for engine & plane test - Rotec r3600 1st Runs Concludes day of testing - including Rotec engine 1st Engine (R3600 Radial) starts Concludes day of testing - including Rotec engine 1st Engine (R3600 Radial) starts
On tarmac taxi out ... Michel (Front) Xavier (Pilot) ...Tests all done - great results!

End of tests: very satisfying, the aircraft is particularly easy to drive, the brakes perfectly work and allow a complete 360° just by braking one wheel and pushing and bit forward the thrust.
3698 End of a splendid day, full of excitement and joy. Michel and I are now working on the refinement of the undercarriage design. Not an easy task, at max 3G hard landing tension is very important, and calculating the rubber springs with the appropriate charts is a game of not too much tension or not too little, and associated geometry. But I found the right design. We should have a soft yet efficient landing gear.

Roll out from Hangar ready for Testsing - Michel takes position for engine's 1st starts...
Rotec R3600 on Sopwith Camel rolls out for engine & plane test Rotec R3600 on Sopwith Camel rolls out for engine & plane test Rotec R3600 on Sopwith Camel rolls out for engine & plane test - Rotec r3600 1st Runs Rotec R3600 on Sopwith Camel rolls out for engine & plane test - Rotec r3600 1st Runs
Rotec Radial R3600 Powered Sopwith rolled out for testing including 1st engine starts...

Commenty on the prop: I have asked Michel to manage measuring the prop traction, which I expect to be high. We already can feel it is strong, really strong though the RPM is intentionally a bit low (prop RPM is 1650). Screw your hat on, it's blowing a hurricane! I now deeply hope the prop will take its RPM's in flight at full thrust. Calculations say so. Will I be right (lucky) once again? It should not go beyond 2370RPM at full thrust & full speed.

Prop Mounted to Rotec R3600 - Ready for a first start...
Prop Mounted to R3600 on Sopwith Camel (RotecRadial Engine - WW1)
Checks now that Rotec R3600 Radial Engine is mounted
Prop mounted to Rotec Radial R3600 On Sopwith Camel
Prop mounted to Rotec Radial R3600 On Sopwith Camel - Ready to run
Prop mounted to Rotec Radial R3600 On Sopwith Camel - Ready to run
Mathia's Custom designed Prop very close in performance to calculations - Ready for 1st Start

Prop Mounted (above):. Blade main width at cord is 15cm, only changing as can be seen near tip, thickness at 75% is 15% and 11% near tip. Blade angle setting (at chord and not intrados, because double convex) is 16.4 degrees (giving true attack angle), makes a prop of 86.6*56. Leading edge is protected with a copper liner screwed, glued and finished to flush the wood surfaces. Thick varnish coating.

Checks now that Rotec R3600 Radial Engine is mounted
Rotec Radial Mounted Now Checks Rotec Radial Mounted Now Checks - GEAR Rotec Radial Mounted Now Checks - Weight
Balance
Temporary Gear
Weight

November 2011 - Mathias reports from the hanger:

Mid 2011 Engine cowled. Sopwith Camel is ready for covering. Prop under consideration:

Ready to cover (Wow! Great looking work done)

Cowl and engine access panel

Mid 2010 Engine mounted:

Rotec Radial R3600 Mounted

By mid 2008 the wings are completed and by the end of 2009 the wings are attached:

Wings attached

Wings completed and 2nd pic shows details

Progress made to the end of 2007:

Positioning of the fuel tanks (front view) & cockpit looking forward

December 2007 and forward: Preliminary design work and ending with the supply of an oil tank and frame

Oil tank and frame as supplied by Rotec

Preliminary Design For Oil Tank & its Final Design

Relative positioning of Frame, Oil Tank, Battery and Fuel Tanks

 

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