|David Davis||09/06/2019 08:35:42|
3463 forum posts
My Barn Door Wing Senior Telemaster is starting to look extremely scruffy and I plan to strip off the covering over the coming winter, repair the glider tow release and anything else that needs attention and recover it. I like to plan ahead!
One or two members of my club have got into flying from water over the last year or so and I thought it would be ubercool to fit floats to the STM and have a go. I built hard points for floats or skis into the fuselage when I first built the model and these floats seem to be value for money: **LINK** I have never weighed the model but as it's covered in Solartex and features extra servos for flaps and the tow release I expect it's rather heavier than most STMs. It is currently powered by a Thunder Tiger 91 FS.
Would a more powerful motor be advisable for float flying?
|Denis Watkins||09/06/2019 08:51:29|
|3926 forum posts|
Just the numbers David
A regular Senior Telemaster is around 6lb, and maybe yours is 7lb
Your floats are just over 1.5lb, so by weight a .90fs is adequate for a high winger
|Nick Cripps||09/06/2019 09:23:35|
|44 forum posts|
I agree with Denis.
I would imagine that the TT91 is more than adequate for your STM currently so the extra drag and weight of the floats would easily be coped with. Adding yet more weight with a larger engine just isn't necessary.
More important is to get the dimensions of the floats correct to support the weight of the model on the water and especially important is the positioning of the step so that the model can rotate and take-off successfully.
The Windermere Model Waterplane Flyers website is worth a look, this write-up by Phil Davies provides some good information:
Also worth a read is Chuck Cunningham's article from RCM Magazine:
881 forum posts
If you have been pulling gliders you should have more than enough grunt to pull the floats.
|Don Fry||09/06/2019 11:06:40|
4116 forum posts
Bloke who wrote the Windermere article has a knack off getting the subject covered in few words. If you are flying with a glow plug, fit a water rudder. They can be a bitch to direct and there is no reverse like a leccy floateur.
881 forum posts
|Steven Shaw||09/06/2019 13:36:05|
333 forum posts
When I bought the optional float kit for my electric powered Sport Cub it came with a new prop.
Edited By Steven Shaw on 09/06/2019 13:38:11
|Nick Cripps||09/06/2019 13:41:16|
|44 forum posts|
For those who are interested in trying out float flying, the British Waterplane Association organises 3 events a year at Colwick Park in Nottingham and have monthly meetings at Billing Lake near Northampton.
You'll be guaranteed a warm welcome and any assistance you might need with this fascinating branch of our hobby.
Dates for these and other events around the country can be found on the BWA website:
|Tony Richardson||09/06/2019 22:26:09|
606 forum posts
Your TT91fs will be more than enough power for the Telemaster on floats David, you should read the Chuck Cunningham article it is all good stuff, I would remind you once you have everything set up and you are good to go when you make that first takeoff once in the air you will most likely need a bit of pitch up trim due to the floats being low and causing drag, possibly pitching the nose down, I always like to have a buddy standing with me at such times to give me trim if needed, just for peace of mind.
Have fun flying from water is another aspect of this hobby that makes it so interesting..
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