Early Aviation
Discuss World War I and the early years of aviation thru 1934.
Discuss World War I and the early years of aviation thru 1934.
Hosted by Jim Starkweather
Replacing 1/77th engines with 1/72nd ?
swede82
Alabama, United States
Joined: October 24, 2013
KitMaker: 135 posts
AeroScale: 8 posts
Joined: October 24, 2013
KitMaker: 135 posts
AeroScale: 8 posts
Posted: Wednesday, January 17, 2018 - 12:15 AM UTC
Can anyone tell me if there would be a awkward sizing problem replacing a kits 1/77th scale radials with 1/72nd resin replacements? The kit engines leave a bit to be desired and I would like to replace them. There are no cowls, the engines set open so no problem there. Any info or advise will be appreciated !!! Thanks .....
jon_a_its
England - East Midlands, United Kingdom
Joined: April 29, 2004
KitMaker: 1,336 posts
AeroScale: 14 posts
Joined: April 29, 2004
KitMaker: 1,336 posts
AeroScale: 14 posts
Posted: Wednesday, January 17, 2018 - 12:43 AM UTC
the 1/72nd parts are about 5.6% larger than 1/76th scale so will look a little larger, & may need fettling to fit.
Cantstopbuyingkits
European Union
Joined: January 28, 2015
KitMaker: 2,099 posts
AeroScale: 19 posts
Joined: January 28, 2015
KitMaker: 2,099 posts
AeroScale: 19 posts
Posted: Wednesday, January 17, 2018 - 05:30 AM UTC
1/77 scale?
Posted: Wednesday, January 17, 2018 - 05:37 AM UTC
My guess is an old 'box scale' kit.
Posted: Wednesday, January 17, 2018 - 06:26 PM UTC
Revell/Monogram Ford Tri Motor was scaled as 1:77 according to the box description.
Could work if you think 3 resin engines are worth the investment.
Cheers,
Joe
Could work if you think 3 resin engines are worth the investment.
Cheers,
Joe
magnusf
Stockholm, Sweden
Joined: May 02, 2006
KitMaker: 1,953 posts
AeroScale: 1,902 posts
Joined: May 02, 2006
KitMaker: 1,953 posts
AeroScale: 1,902 posts
Posted: Wednesday, January 17, 2018 - 11:41 PM UTC
I've done a bit of measuring since I had an FW-190 BMW-engine in 1/72-scale handy. That one is 15 mm in diameter in 1/72, in 1/77 it would be close to 14 mm. I assume that the Trimotor's engines are a slight bit smaller in themselves meaning that the difference between the diameter it should be and the actual diameter of a 1/72 resin engine is less than 1 mm: you will get away with that!
Magnus
Magnus
swede82
Alabama, United States
Joined: October 24, 2013
KitMaker: 135 posts
AeroScale: 8 posts
Joined: October 24, 2013
KitMaker: 135 posts
AeroScale: 8 posts
Posted: Friday, January 19, 2018 - 12:06 AM UTC
Thanks Guys, appreciate the help. Yes, the OLD Revell Tri motor....decided to try to make a silk purse out of a sows ear! Actually, was dared to try it.......surprisingly, having fun with it! I do less A/C than armor so its nice on occasion to step away from the rust and dust!!!
swede82
Alabama, United States
Joined: October 24, 2013
KitMaker: 135 posts
AeroScale: 8 posts
Joined: October 24, 2013
KitMaker: 135 posts
AeroScale: 8 posts
Posted: Saturday, January 20, 2018 - 11:05 PM UTC
Although...these are some great engines !!!!!! http://www.smallstuffmodels.com/2018/01/new-small-stuff-72-pratt-whitney-engines.html