Cox powered ultimate bip new .15 engine

I keep saying ill fly in winter, but have yet to brave it! Snow here, but saying Temps will be in the 50's and low 60's early next week.

Engines ready for winter

Hi David, What is the wingspan measurement on that model? Was the model a kit or built from plans? What brand/size is the engine that you're replacing?

.. also.. the skis look nice. Do you have a close-up image of them? I have made pairs of 1/2A size snow skis of my own design using .010" aluminum sheet for the ski and a shock absorbing craft-stick design for the binding to the strut.

M'y plane wing size mesurent 33.5 in 850mm fuselage lenght 37 in 935 mm powered wit .15 rc modified sportsman it weight 824 g To hevy for its power for wing ok ring is like 32 \ 36 g\dm2 y tink of over size its wing Not the tail

Ski buy in hobby shop like 10 years from now is made of lexan sort of light plastiques tink it work fine tink was for 450 traîner of som sort

NEW222 wrote:I keep saying ill fly in winter, but have yet to brave it! Snow here, but saying Temps will be in the 50's and low 60's early next week.

That weather should not bee a problem for you with the lows y'all get

Snow alredy in Québec look

Thank you for the information on your model. Here are some photos of my skis.

roddie wrote:

What the heck is that stuff on your plane and your car? Dandruff?? Soot from the CALI fires???

We've had that white sh...tuff 3 times already here in Mn! Warmed up some and finally all melted.....not a fan!

Is it hard To take of on Snow wit control Line plane ??

After litle test wit engine tink of change engine for Good performance of that modèle sur m'y engine is Good runer just tink m'y plane need power like if 13000 rpm of m'y old sportsman Not enough for god expérience of flight dont want To batle wit the plane To berly fly

Y just did modification To m'y enya .15 , carburateur from ae .15 cars engine

Engine setup upgrades parts os tuned pipe carb from team ae cars .15 engine ventury modification To fit carb carburateur is also machined To fit y have To dril and tap hole for Bolt and its done dont no how engine wil react To new spec size ventury carb is very precise part now can adjust both low hi fuel mixture wit hope for insane power from him tink of change its piston and sleve wit os parts if it fits inside like wit m'y fraken.35 enya maxs os mixed engines modification very powerful use boat carburateur os.35 plane engine part cant remember Witch part was used y made him like 17 years from now hard To remember Witch part used for. The two engines parted wit

Comparaison of plane and cars carburator size ventury

Intake port very similar wit first look.. on inside port big change in size y dont have test engine yet wit fix on a .15 plane for testing

It is not only the the intake and ventury area that matters...
The air/fuel mixture also has to travel through the crank and up via the transfer ports.

Modern car engines in general have larger crank diameter and larger crank bore, compared to old-school airplane engines. They were/are designed to work at lower rpms and do not need or even benefit a large venturi diameter.

Hum Not agree wit if look at spécifiques engine os .15 la rc engine and enya .15 ||| cl is Not big différence wit both ae cars engine Not mutch To

M'y previous test wit same type engines giving very Good result using os .32 marine carburateur on enya .35 modified with os part engines in m'y test y find the casing of both engines is very close excep Front and lower casing sleeve lenght and porting very litle difrent but never y was tinking of get that mutch power of that old engine at the time just wanted Good rc engine ending wit a insane rpm gain Not power To run larger prop just huge gain in rpm no exact rpm number now at the time no tool for rpm reading sound like over way over 28000 now y have tach wil try in future Not now engines is in crashed plane nead fix engine is Not damaged from the crash just never use from that time like 16 years from now y used engine only once crashed first flight wel je just hard landing riped of m'y weels nose litle its prop intact plane ended part donor for servo Reciver

Litle work brain storming on new setup look like engine fit

Y have To tink of next step To take build new engine mount weight engines wit plane look for cg hope Not To heavy

Ok Good new m'y enya engine compare To its oem spec ventury now performance is very close To enya ss.15 bb tn sound very hi rpm for old schnurled port .15 engine y dont tach rpm m'y tach meter batry dead engine can run slow To very hi rpm in second respond very fast test on 8x4 nilon prop y have To change for bether one that is Not flexibles engines lost track prop flex To mutch for people ho tink oversize Intake did noting wil tach m'y engine take picturs of reading and no y dont change timing on m'y engine just air flow dynamique inside very litle To internal its the carburateur giving better air fuel ratio result gain of rpm over size Intake without carb its Not Good e engine can become very hard To tune and start tuned pipe help get gain in rpm