$10.29
ENGINES FOR MODEL ROCKETS
4 – A3-4T Engines
4 – Starters
4 – Starter Plugs
PLEASE NOTE: This item will ship by US Postal Service only. You MUST HAVE a physical mailbox or post office box for delivery.
In stock
The Estes A3-4T engine is single stage engine designed for model rocket flight. This engine is a mini engine designed for flights in lightweight rockets. Each package includes 4 engines, 4 starters and 4 starter plugs.
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WARNING
| Length | 1.8 in. (4.6 cm) |
|---|---|
| Diameter | .50 in. (13 mm) |
| Estimated Weight | .28 oz. (7.9 g) |
| Total Impulse | 2.50 N-sec |
| Time Delay | 4 Seconds |
| Estimated Max Lift Weight | 2.0 oz (57 g) |
| Max Thrust | 6.80 Newtons (1.5 lbs) |
| Thrust Duration | 0.60 Seconds |
| Initial Weight | 0.28 oz (8.0 g) |
| Propellant Weight | 0.12 oz (3.3 g) |
| Quantity Per Pack | 4 |
Louie –
Best bang for your buck…
Don’t let these little motors fool you….They pack a heck of a punch for it’s size….My go to engine for my mini engine powered birds….try one….i am sure you will agree.
nute –
Favoprite mini engine
This is my absolute favorite mini engine!! it works beautifully for a single stage in the astron eliptic and is good for the first few launches of the Mini Honest John. This engine gives a long burn time for its small size. I use this motor at the beginning of my launches to get a feel for the wind patterns and rockets.
Caley –
Bandito
Work really well in the bandito!!!
David –
Excellent Flight Profile
I like this engine a lot in my models that don’t need the kick of the A10 to get off the pad. The relatively long burn with lower thrust makes it easier to track your bird.